- mbed-tls - lists.trustedfirmware.org

ECDH - establish shared secret key with X509 certificate + private key

by Tilen MAJERLE

Dear community, My target is to establish a shared secret key between the PC application (master) and (various, different, but always limited to 1 at a time) peripheral devices. *Each device has*: - Device specific ECC 256-bit private key, in PEM format, well parsed with mbedtls_pk_parse_key function when required. - Device specific certificate that belongs to the private key. Certificate is signed by the *TrustCA*. Parsing works well with mbedtls_x509_crt_parse - TrustCA’s certificate, used to validate the master device during communication, also used to check firmware signature in a secure boot part of the application *PC application has*: - Master application certificate, signed by *TrustCA* - Private key of the PC application that belongs to master application certificate, in PEM format - *TrustCA*’s certificate, used to validate device certificate during communication Aim is to establish AES shared secret, by doing: - Master sends authentication requests, random challenge, device performs hash + signs with private key. Returns certificate + signature of the challenge. - Master uses *TrustCA*'s certificate to check device's certificate and then checks the signature of the hash(challenge) - Master sends its certificate to the slave, now both hold X509 certificates. At this point, device could also request authentication of the PC application - A computation with its respective private key is needed on both sides, and we have common secret. What is the correct way in mbedTLS, to get a public key from *X509*, that can be used in the ECDH module? The way the ECDH module inside mbedTLS seems to be designed, there is no straight-forward way to export X5090’s public key, get its parameters and use them in ECDH module. Instead, ECDH expects that random keypair will be generated every-time we want key exchange. Doing this, we risk *man in the middle* attack, since the other party doesn’t know where the key is actually coming from. For the moment, the solution I see (which is not THAT elegant, or is it?), and to avoid man in the middle attack:: - Devices still exchange certificates, but only for authentication reason + certificate verification - Every message that is sent between devices (for instance public keys exchange), must also be hashed & signed, so that another party can be sure message is coming from the device which shared the certificate just before (and certificate is signed by TrustCA) - We need one exchange more to get shared secret. Is this the *proposed* solution in this case? Is there a more elegant solution with the mbedTLS library for this problem? Thanks -- Tilen Majerle, mag.inž.el. Tušev Dol 11 8340 Črnomelj Slovenia www: http://majerle.eu e-mail: tilen(a)majerle.eu Mobile: +386 40 167 724 <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#m_-5461752537485879190_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

1 year, 6 months

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Dropping support for Visual Studio 2015

by Gilles Peskine

Hello, We are considering dropping support for Visual Studio 2013 and Visual Studio 2015 from Mbed TLS 3.6 onwards. This would make Mbed TLS 3.6 require Visual Studio 2017 or newer. (Mbed TLS 2.28 LTS is not affected.) Per the Visual Studio product lifecycle <https://learn.microsoft.com/en-us/visualstudio/productinfo/vs-servicing#old…>, VS 2013 and 2015 are currently on extended support, but their support will end during the lifetime of Mbed TLS 3.6 LTS. Our reasons are: * We prefer not to support products that are not supported upstream, such as VS 2013 and 2015 will be during the lifetime of 3.6 LTS. * Older versions of Visual Studio tend to require workarounds due to their incomplete support for C99, and we would like to reduce those. We may drop support for older versions of MinGW as well for this reason. * The development branch of Mbed TLS is currently triggering an internal compiler error in VS 2015 <https://github.com/Mbed-TLS/mbedtls/issues/8735>. If you want to keep support for VS 2013 and 2015 in Mbed TLS 3.6, please let us know as soon as possible and tell us why it's important. Assistance with the internal compiler error would be appreciated. Best regards, -- Gilles Peskine Mbed TLS developer

1 year, 7 months

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.MBed TLS - Transport / Network Level Implementation

by Satya Prakash Prasad

Hi, Please let me know if MBed TLS is designed for Security level at Transport / Network Level Implementation of OSI model - at network socket connection level. Please let us know if MBed TLS routines can be used at DataLink Layer specifically for 802.1x protocols. Referring to the example as provided in tutorial - https://mbed-tls.readthedocs.io/en/latest/kb/how-to/mbedtls-tutorial/ What would be setup / config accordingly for non socket dependent implementation. Thanks in advance. Regards, Prakash

1 year, 7 months

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MBed TLS

by Satya Prakash Prasad

Hi, I was referring to below URLs for understanding key exchange using certificate in TLS framework: https://tls12.xargs.org/ https://tls13.xargs.org/ I have some confusion related to above TLS 1.2 and 1.3 flows and require guidance from your side accordingly. I understand the key exchange using certificates highly depends on configuration and capabilities setup. But then how do we know what goes on a TLS connection based on configuration and setup capabilities? What are the different configurations and when should we set them? I need the same details with reference to a TLS connection setup from a client in our codebase while other for EAP TLS using the below example available in the url below: https://github.com/prplfoundation/hostap/blob/master/eap_example/eap_exampl… Firstly in the above code we do see a lot of configuration and initialization like below: eap_cb.get_config = peer_get_config; eap_cb.get_bool = peer_get_bool; eap_cb.set_bool = peer_set_bool; eap_cb.get_int = peer_get_int; eap_cb.set_int = peer_set_int; eap_cb.get_eapReqData = peer_get_eapReqData; eap_cb.set_config_blob = peer_set_config_blob; eap_cb.get_config_blob = peer_get_config_blob; eap_cb.notify_pending = peer_notify_pending; Whereas our client code which connects to the cloud using certificates to obtain some data in below mentioned way: keyman_creds_for_purpose() - get the creds read and parse the crt.pem, key.pem and trusted_ca.pem files. It make uses of below APis:readfile() - read the file from key storageparse_private_key() & mbedtls_pk_parse_key() - I believe it is for parsing the keys read from file Setup MBed TLS mbedtls_ssl_config_init() - Initialize mbedtls_ssl_configmbedtls_ctr_drbg_init() - CTR_DRBG context initialization mbedtls_ctr_drbg_seed() mbedtls_ssl_conf_rng() mbedtls_ssl_conf_ca_chain() mbedtls_ssl_conf_own_cert() mbedtls_ssl_conf_authmode() t_socket() I am quite new to this code so could have missed or provided wrong info - but I hope I give the overall picture of code implementation - note that this client code is a working code with no issues. My queries are mentioned below: 1) Does the same TLS message flow occur in both cases - our client code and EAP TLS? If not then what's the difference in-between them? 2) How do we understand exact implementation and message flows? 3) What are the different ways to implement TLS connection using certs? 4) Any additional information that can helpful to me like - some references to tutorials / examples / guide would be an added advantage Thanks in advance. Regards, Prakash

1 year, 7 months

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Optimized swap and endianness macros (MBed TLS 2.28.x)

by jojwoos

Hi, when upgrading MBed TLS from 2.16.x to the LTS 2.28.x version on an ARM 32 bit system, I realized that the byte-order macros were collected to one file (common.h) with the possibility to replace them. After writing ARM optimized macros, I checked this topic in the 3.5.x version where it was implemented in a similar way in alignment.h. With this input the following solution was made for the 2.28.x branch: https://github.com/jojwoos/MbedTLS_wrapper A bit late, but maybe someone can still use it:) Perhaps the 64 bit swap, build from two optimized 32bit swaps, can provide some input for the actual 3.5.x version. You can find it at: "// general 64 bit optimization if only 32 bit optimization is available" (32bit ARM systems usually don't have optimized 64bit swap functions) Best regards, Jürgen

1 year, 7 months

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MBed TLS Tutorial

by Satya Prakash Prasad

Hi, Referring to the example as in https://mbed-tls.readthedocs.io/en/latest/kb/how-to/mbedtls-tutorial/ (secure connection) does the secret key exchange takes place in-between server and client. Is there any flowchart / diagram that states what happens during the server client connection - how the keys are exchanged and what types of certs are exchanged, I mean like .pem, X.509 etc? Can we take this way that be it any type of certificate the code implementation is the same for all TLS communication? Thanks in advance. Regards, Prakash

1 year, 7 months

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Unable to Read Encrypted Private Key

by jtrauntvein＠gmail.com

1 year, 7 months

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Apt error for invalid key ID

by S Krishnan, Archanaa

Hello, In psa_validate_key_attributes(), when the key ID is invalid for persistent keys the function returns PSA_ERROR_INVALID_ARGUMENT. See https://github.com/Mbed-TLS/mbedtls/blob/development/library/psa_crypto.c#L…. The comments for PSA_ERROR_INVALID_ARGUMENT explicitly states that this error should not be returned when key identifier is invalid, instead PSA_ERROR_INVALID_HANDLE should be returned. For the above psa_validate_key_attributes() usecase, which is the correct return code - PSA_ERROR_INVALID_ARGUMENT or PSA_ERROR_INVALID_HANDLE? Regards, Archanaa

1 year, 7 months

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Built-in keys for transparent driver

by S Krishnan, Archanaa

Hello, The mbedtls docs (psa_driver_interface.md) mention that only opaque driver supports the use of built-in keys with PSA APIs. Why does a transparent driver not support built-in key feature? Regards, Archanaa

1 year, 8 months

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Request for comments on adding more MBEDTLS_PRIVATE accessors.

by Minos Galanakis

Hi all. We are currently planning on improving our coverage and adding accessor functionality for members marked as MBEDTLS_PRIVATE. I have created an issue ( #8529 )<https://github.com/Mbed-TLS/mbedtls/issues/8529> to consolidate all the information and design-review the task. It would really help to hear from the community as to which members they are still using, and what is their use-case. Feel free to comment on the issue, or discuss it here. There may be members that we have decided not to include and are essential to your integration or are completely missing/not being considered. Best Regards, Minos Galanakis

1 year, 8 months

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MbedTLS Code 3.5.1

by Satya Prakash Prasad

Hi, We need to integrate the TLS Code in our codebase. I have downloaded Mbed TLS 3.5.1 @ https://github.com/Mbed-TLS/mbedtls/releases and compiled it. I understand that we can just use the code in mbedtls-3.5.1\library directory for the TLS functionality - can anyone please confirm. Are there any other directories where TLS Code exists in the MbedTLS 3.5.1 repo? Please confirm how we can only integrate MbedTLS TLS functionality code in other applications / repo. There are so many other directories in MbedTLS 3.5.1 repo - how is the code in repo organized? Do we need all the code in MbedTLS 3.5.1 repo? Your valid input will help me to integrate the MbedTLS Code in our codebase? Please provide all other details as required or will be helpful for the same. Thanks in advance. Regards, Prakash

1 year, 8 months

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Mbed TLS 3.5.1

by Satya Prakash Prasad

Hi, I downloaded Mbed TLS 3.5.1 @ https://github.com/Mbed-TLS/mbedtls/releases. Please let me know how to configure and compile the same. Also please let me know how to run some sample tests there or manually to verify. Thanks in advance. Regards, Prakash

1 year, 9 months

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Code samples for psa_import_key and ECC?

by Christian Huitema

I am trying to use psa_import_key() after loading private keys from PEM files. I am succeeding when parsing an "RSA PRIVATE KEY", but no such luck for "EC PRIVATE KEY". I assume that I am not setting attributes correctly. A code sample would be nice! Or, maybe I could just use mbedtls_pk_parse_keyfile(), but then I would need to "import" a PSA key from the "mbedtls" context, ad I did not find sample code for that either. -- Christian Huitema

1 year, 9 months

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Mbed TLS 3.5.1 and 2.28.6

by Dave Rodgman

Hi Mbed TLS users, We have released Mbed TLS versions 3.5.1 and 2.28.6. These releases of Mbed TLS are made under a dual Apache-2.0 OR GPL-2.0-or-later license. Mbed TLS 3.5.1 also contains a bugfix for CMake builds. They are otherwise identical to the previous releases, 2.28.5 and 3.5.0. Full details are available in the release notes (https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-2.28.6, https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.5.1)<https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.5.0)>. We recommend all users to consider whether they are impacted, and to upgrade appropriately. Many Thanks. Dave

1 year, 9 months

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[Mbed-tls-announce] New Mbed TLS releases : 3.5.0 and 2.28.5

by Minos Galanakis via Mbed-tls-announce

We have released Mbed TLS versions 3.5.0 and 2.8.5. These releases of Mbed TLS address several security issues, provide bug fixes, and bring other minor changes. Full details are available in the release notes (https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-2.28.5, https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.5.0). We recommend all users to consider whether they are impacted, and to upgrade appropriately. Many Thanks. IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. -- Mbed-tls-announce mailing list -- mbed-tls-announce(a)lists.trustedfirmware.org To unsubscribe send an email to mbed-tls-announce-leave(a)lists.trustedfirmware.org

1 year, 9 months

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Mbed TLS license change

by Dave Rodgman

Hi Mbed TLS users, We are planning to change the license for Mbed TLS shortly, from Apache 2.0 to a dual license Apache 2.0 / GPLv2-0-or-later license. This will allow GPL-licensed projects to take Mbed TLS under a GPL license. Projects which currently take Mbed TLS under an Apache 2.0 license may continue to do so, and therefore should not be affected by this change. The inbound license, under which we accept contributions, is already a dual-license. There is therefore no impact for contributors, and no impact on PRs that are currently in review, or those that have previously been integrated into the library. We hope that this will enable more projects to make use of Mbed TLS. Dave Rodgman

1 year, 9 months

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TF-PSA-Crypto publication

by Ronald Cron

We are happy to announce the publication in GitHub of the TF-PSA-Crypto repository: https://github.com/Mbed-TLS/TF-PSA-Crypto. The TF-PSA-Crypto repository provides an implementation of the PSA Cryptography API (https://arm-software.github.io/psa-api). This encompasses the on-going extensions to the PSA Cryptography API (e.g. PAKE). The PSA Cryptography API implementation is organized around the PSA Cryptography driver interface aiming to ease the support of cryptographic accelerators and processors. This is a significant milestone on the journey to split the PSA Cryptography API implementation and its development out of the Mbed TLS repository into TF-PSA-Crypto. This is early days though and the TF-PSA-Crypto repository should be considered as a prototype: it is read-only and mostly a mirror of the PSA Cryptography API implementation of Mbed TLS. But we believe it is a good illustration of what we are aiming at. Thanks, Ronald Cron on behalf of the Mbed TLS team.

1 year, 9 months

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How to implement Opaque driver API

by Jiamei Xie

Hi experts, I wanted to forward some crypto operations to an external driver that provides psa_call APIs. The mbedtls version I am using 3.4.0. Take psa_asymmetric_encrypt as an example, The mbedtls api is psa_status_t psa_asymmetric_encrypt(mbedtls_svc_key_id_t key, psa_algorithm_t alg, const uint8_t *input, size_t input_length, const uint8_t *salt, size_t salt_length, uint8_t *output, size_t output_size, size_t *output_length) It gets attribute, key.data and key.byte from key_id. Then call function psa_driver_wrapper_asymmetric_encrypt without key_id as its argument: status = psa_driver_wrapper_asymmetric_encrypt( &attributes, slot->key.data, slot->key.bytes, alg, input, input_length, salt, salt_length, output, output_size, output_length); In psa_driver_wrapper_asymmetric_encrypt, it will use different implementations according to the location value in https://github.com/Mbed-TLS/mbedtls/blob/d69d3cda34c400a55220352518e37d3d2c…. I define a new location definition(RSS_PSA_LOCATION. When the location is RSS_PSA_LOCATION, making it call psa_status_t crypto_psa_asymmetric_encrypt(psa_key_id_t key, psa_algorithm_t alg, const uint8_t *input, size_t input_length, const uint8_t *salt, size_t salt_length, uint8_t *output, size_t output_size, size_t *output_length) This API require key_id. Is it possible to get key_id from attribute and key_slot? Regards, Jiamei Xie

1 year, 9 months

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Driver only build option

by Ruchika Gupta

Hi, I am trying to use the MACRO's defined at - https://github.com/Mbed-TLS/mbedtls/blob/development/docs/driver-only-build… to enable driver only build. As mentioned on the page I tried to do this for SHA256. However, the code in sha256.c isn't ifdefed by "MBEDTLS_PSA_ACCEL_ALG_SHA_256" so still gets compiled ? Can you point me to what I am missing here ? Regards, Ruchika

1 year, 9 months

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How can I encrypt with a private key?

by 克坚马

Hi all, I have been using the old version(2.28) for a very long time, and updated to version 3.4.0 recently. When using rsa encryption, there is a parameter 'mode' that allows to choose whether to use a public key or a private key. Why is it canceled in the new version? And how can I use the private key to perform an encryption operation? Thank you for your help!

1 year, 9 months

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For enabling TLS 1.3

by Sankalp Raj Singh

Can you please provide the proper steps and file name where we have to make changes in order to enable TLS 1.3

1 year, 9 months

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PSA crypto driver - KEY LOCATIONS

by Ruchika Gupta

Hi, For the crypto accelerator, we are developing for our SoC, we have a use-case where the same driver can support multiple/range of KEY LOCATIONS. We want a mechanism such that, the a common function in driver is called which can then take the necessary option based on the key location. The way jsons are currently structured, what I understand is that for every key location, we will need to create a separate json with a different driver prefix. This would lead to a lot of code duplication for us. For eg { to define 3 locations X, Y and Z , I need to create 3 json files -> these all refer to same crypto sub-system I my case} #define TEST_DRIVER_X_OPAQUE_DRIVER_ID #define TEST_DRIVER_Y_OPAQUE_DRIVER_ID #define TEST_DRIVER_Z_OPAQUE_DRIVER_ID Switch (key_location) Case x: Test_driver_x_ opaque_import_key(); break; Case y: Test_driver_y_ opaque_import_key(); break; Case z: Test_driver_z_ opaque_import_key(); break; This is resulting in a lot of code duplication and overhead. What we want to have the flexibility to achieve is : #define TEST_DRIVER_OPAQUE_DRIVER_ID Switch (key_location) Case x: Case y: Case z: Test_driver_opaque_import_key(); If we can support multiple locations from a driver json file for a given driver, this issue would be resolved. This would give the driver writers flexibility on how and where they want to handle the locations. Please let us know your views on the same. Regards, Ruchika

1 year, 10 months

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Re: [Mbed-tls-announce] New Mbed TLS releases : 3.5.0 and 2.28.5

by Oubaid AKRMI

Hi, Is the SHA-3 impacted by the vulnerability reported in NIST vulnerability database (link below) ? https://nvd.nist.gov/vuln/detail/CVE-2022-37454 "Description The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties. This occurs in the sponge function interface. " Best regards, [Shape, rectangle Description automatically generated] Oubaid AKRMI | Mobile: +33 7 53 06 08 49 GPM | Application Security Engineer [Icon Description automatically generated]<https://www.facebook.com/STMicroelectronics.NV/> [cid:image003.png@01D9FD35.14D24980] <https://twitter.com/st_world> [Icon Description automatically generated] <https://www.linkedin.com/company/stmicroelectronics/> [Icon Description automatically generated] <https://www.instagram.com/stmicroelectronics.nv/> [Icon Description automatically generated] <https://www.youtube.com/user/STonlineMedia> ST online: www.st.com<https://stmicroelectronics-my.sharepoint.com/personal/oubaid_akrmi_st_com/D…>

1 year, 10 months

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Link to MBed TLS Tech Forum - Asia/Europe

by Daniel Morris

Just in case others are struggling to join/had a bad bookmark for the meeting which started a few minutes ago, the right one is: https://linaro-org.zoom.us/j/95471735908?pwd=WStaaWhEVXNqcWx1S2pEQU13cHU2UT… Also handily listed here: https://www.trustedfirmware.org/meetings/ Daniel %<---------------------------------------------------------------------- Daniel Morris eCosCentric - The eCos experts Tel: +44 1223 245 571 - info(a)eCosCentric.com

1 year, 10 months

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psa_raw_key_agreement does not like PSA_ALG_ECDSA(PSA_ALG_SHA_256)

by Christian Huitema

I am not sure I completely understand the PSA API for key exchange. I have been creating a private key, exporting the public key, passing that successfully to the peer, obtaining the peer's public key, and I want to use psa_raw_key_agreement to obtain the shared secret. But it fails in: if (!PSA_ALG_IS_KEY_AGREEMENT(alg)) { status = PSA_ERROR_INVALID_ARGUMENT; goto exit; } The value of "alg" is 0x06000609, computed as PSA_ALG_ECDSA(PSA_ALG_SHA_256). That's probably wrong, but I do not know why... -- Christian Huitema

1 year, 11 months

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Output format of mbedtls_ecdh_make_params does not play well with TLS 1.3

by Christian Huitema

In TLS 1.3, one half of an ECDH exchange is defined as a "key entry", coded as: struct { NamedGroup group; opaque key_exchange<1..2^16-1>; } KeyShareEntry; The opaque data is typically encoded as a one byte format (e.g., 0x04, no compression), and then the encoding of either one or two points: 32 bytes for one point with CURVE25519, 64 bytes for two points with SECP256R1. The encoding for the "public key" output of mbedtls_ecdh_make_params is different: 1 byte of length, followed by 2 bytes of curve ID, followed by the raw encoding of the point or points. The related encoding of the server public key output of mbedtls_ecdh_make_public is also different: 1 byte of length, followed by 2 bytes of curve ID, followed by the raw encoding of the point or points. To make that work, I need some reformatting: strip out 3 bytes for the client public key, write a single 0x04 byte instead; strip out one byte from the key-exchange data received at the server and write 3 bytes of length and curve ID instead. Also, make sure to reset the strings to the unmodified value before calling mbedtls_ecdh_calc_secret, which probably means maintaining two copies, thus twice the memory. This is a bit messy, and probably unnecessary. The extra parameters "length" is already passed through the API (the &olen argument) and the "group_id" could easily be passed as well. Or maybe I am looking at the wrong API... -- Christian Huitema

1 year, 11 months

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TLS handshake with AWS IoT MQTT broker seems to succeed and then is terminated by the broker

by Roger Sala

I am developing an AWS IoT MQTT client on STM32H723 using FreeRTOS 10.3.1, LwIP 2.1.2 and MbedTLS. My first attempt used MbedTLS 2.16.2 and it mostly works except that sometimes, seemingly related to the timing of the network I'm using, it fails when my client fails to send out anything after the Client Key Exchange message and then the server responds with a Close Notify as follows: "Time","Source","Destination","Protocol","Length","Info" "0.000000","10.24.108.94","54.157.158.237","TLSv1.2","418","Client Hello" "0.016460","54.157.158.237","10.24.108.94","TLSv1.2","150","Server Hello" "0.002777","54.157.158.237","10.24.108.94","TLSv1.2","685","Certificate" "0.000000","54.157.158.237","10.24.108.94","TLSv1.2","438","Server Key Exchange, Certificate Request, Server Hello Done" "0.976521","10.24.108.94","54.157.158.237","TLSv1.2","1006","Certificate, Client Key Exchange" "0.014853","54.157.158.237","10.24.108.94","TLSv1.2","61","Alert (Level: Warning, Description: Close Notify)" When it works it looks like this: "Time","Source","Destination","Protocol","Length","Info" "0.000000000","10.0.0.11","54.84.254.130","TLSv1.2","418","Client Hello" "0.017495225","54.84.254.130","10.0.0.11","TLSv1.2","150","Server Hello" "0.001743255","54.84.254.130","10.0.0.11","TLSv1.2","685","Certificate" "0.000022282","54.84.254.130","10.0.0.11","TLSv1.2","392","Server Key Exchange" "0.000004428","54.84.254.130","10.0.0.11","TLSv1.2","100","Certificate Request, Server Hello Done" "2.606030441","10.0.0.11","54.84.254.130","TLSv1.2","1326","Certificate, Client Key Exchange, Certificate Verify, Change Cipher Spec, Encrypted Handshake Message" "0.027421478","54.84.254.130","10.0.0.11","TLSv1.2","105","Change Cipher Spec, Encrypted Handshake Message" "0.000971482","10.0.0.11","54.84.254.130","TLSv1.2","193","Application Data" "0.075384354","54.84.254.130","10.0.0.11","TLSv1.2","87","Application Data" The last two "Application Data" messages are the MQTT connect and connect ACK, So before I filed a bug report, I upgraded to MbedTLS 2.28.4. The good news is that this client always (seems) to successfully negotiate the TLS handshake, but after receiving the first encrypted "Application Data" (connect), the broker immediately sends and "Encrypted Alert", which I'm taking to be a Close Notify because a TCP FIN follows shortly thereafter. The Wireshark capture of the 2.28.4 handshake looks almost exactly like the successful 2.16.2 handshake: "Time","Source","Destination","Protocol","Length","Info" "0.000000000","10.0.0.11","44.195.98.16","TLSv1.2","336","Client Hello" "0.018450117","44.195.98.16","10.0.0.11","TLSv1.2","150","Server Hello" "0.000524146","44.195.98.16","10.0.0.11","TLSv1.2","685","Certificate" "0.000003168","44.195.98.16","10.0.0.11","TLSv1.2","392","Server Key Exchange" "0.000002995","44.195.98.16","10.0.0.11","TLSv1.2","100","Certificate Request, Server Hello Done" "2.517148776","10.0.0.11","44.195.98.16","TLSv1.2","1329","Certificate, Client Key Exchange, Certificate Verify, Change Cipher Spec, Encrypted Handshake Message" "0.016572792","44.195.98.16","10.0.0.11","TLSv1.2","60","Change Cipher Spec" "0.000007326","44.195.98.16","10.0.0.11","TLSv1.2","99","Encrypted Handshake Message" "0.001500778","10.0.0.11","44.195.98.16","TLSv1.2","193","Application Data" "0.031014646","44.195.98.16","10.0.0.11","TLSv1.2","85","Encrypted Alert" ... except for the "Encrypted Alert" from the broker that leads to the closing of the session. I'm hoping someone has an explanation of the behavior I'm seeing and can suggest a path forward for me. Another data point is the fact that the client with MbedTLS 2.28.4 can successfully authentic and negotiate a TLS handshake with a mosquitto broker I'm running locally using self signed certificates. ====================================================================== The information contained in this e-mail, including all of its attachments, is confidential and proprietary information of IPG Photonics and its affiliates and intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or e-mail, and destroy this communication and all copies. Thank you. ======================================================================= This Email has been scanned for all viruses by IPG Photonics Email Scanning Services.

1 year, 11 months

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Reminder: MBed TLS Tech Forum - Asia/Europe

by Don Harbin

Hi All, A gentle reminder that the Asia-Europe timezone-friendly MBed TLS Tech forum is *next Monday at 10:00am PM UK time.* Invite details can be found on the online calendar here <https://www.trustedfirmware.org/meetings/>. If you have any topics, please let Dave Rodgman know. :) Best regards, Don Harbin TrustedFirmware Community Manager don.harbin(a)linaro.org ReplyReply to allForward

1 year, 11 months

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New TrustedFirmware Discord Server

by Don Harbin

Hi All, Note you may have received another instance of this note but when I attempted to send to all TF ML's simultaneously it seemed to fail, so sending to each one at a time. Sorry about that. :/ We've created a Discord Server for real time chats/sharing. This solution comes at no cost to the project, is set up with channels for each project, includes a #general channel, and supports direct 1-1 chats between members, all with the goal of improving collaboration between trustedfirmware.org developers. We encourage all to join! :) Instructions for joining can be found on the TF.org FAQ page <https://www.trustedfirmware.org/faq/>. See you all there and please don't hesitate to reach out if you have any questions! Don Harbin TrustedFirmware Community Manager don.harbin(a)linaro.org

1 year, 11 months

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New TrustedFirmware Discord Server

by don.harbin＠linaro.org

The content of this message was lost. It was probably cross-posted to multiple lists and previously handled on another list.

1 year, 11 months

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Does mbedtls support x509 certificates signed wih ED448 algorithm?

by Bahadır Maktav

Hi, I am trying to use a certificate with its public key algorithm is NIST P-384 and its signature algorithm is ED448. I am working on ESP board with IDF framework which supports mbedtls. But when I am trying to use that certificate, I got error message about 'MBEDTLS_ERR_X509_UNKOWN_SIG_ALG'. So, I thought that maybe mbedtls does not support certificates which signed with ED448.

1 year, 11 months

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Does mbedtls support x509 certificates signed wih ED448 algorithm?

by Bahadır Maktav

Hi, I am trying to use a certificate with its public key algorithm is NIST P-384 and its signature algorithm is ED448. I am working on ESP board with IDF framework which supports mbedtls. But when I am trying to use that certificate, I got error message about 'MBEDTLS_ERR_X509_UNKOWN_SIG_ALG'. So, I thought that maybe mbedtls does not support certificates which signed with ED448.

1 year, 11 months

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Example of AEAD decrypt?

by Christian Huitema

The example of AEAD encryption in "aead_demo" is very useful. Is there a similar example for decryption? -- Christian Huitema

1 year, 11 months

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Does mbedTLS TLS1.3 only support PSK?

by Thompson, Jeff

I've got mbedTLS 3.1.4 and want to use TLS 1.3. My handshake fails very early because I don't have any Pre-Shared Keys. Does mbedTLS TLS1.3 only support PSKs, or can I still use generated session keys as does TLS 1.2? If so, how? Jeff Thompson | Senior Electrical Engineer - Firmware +1 704 752 6513 x1394 www.invue.com [cid:image001.gif@01D9D729.620C6230]

1 year, 11 months

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Silly python problem when building on MacOS

by Christian Huitema

Hello, I am trying to build MbedTLS on a Mac, as part of a project to support MbedTLS in the "picoquic" implementation of QUIC. I have a small problem, probably something of my making. I have cloned the repo on an "mbedtls" directory, created a "build" subdirectory, and from there run"cmake ..", which worked fine, and then tried to run "make", which fails in "generating psa_crypto_driver_wrapper.c" when trying the python script "generate_driver_wrappers.py" because it cannot find the python module "jsonschema". I tried to solve that by installing that module using "pip", and test programs running python3 do find the "jsonschema". Calling print(jsonschema.__file__) shows the module is installed in my user directory: /users/christianhuitema/Library/python3.9/lib/python/... Is there a simple way to fix that? -- Christian Huitema

1 year, 12 months

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Certificate Revocation

by ahmed bouzid

Hello, I'm currently engaged in a project where I'm utilizing mbedtls for the management of certificates. Within this project, I'm aiming to integrate a revocation feature using Certificate Revocation Lists (CRLs). However, my search for resources on how to effectively implement a comprehensive certificate revocation process using mbedtls has unfortunately yielded no productive outcomes. I am concerned about how to first create a crl file and sign it using my self-signed CA, how to revocate a certificate if we need to revocate it, and how to update the CRL, then when parsing the cert how to detect that this certificate has been revocated. ( I am using LPCXpresso55S16 as a client and raspberry pi as a server and I am doing all with coding). Thank you in advance for your support. Best regards, Ahmed.

1 year, 12 months

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Custom MBEDTLS_CONFIG_FILE with CMake subproject

by mickael.bonjour＠cysec.com

Hello, I need some help to setup mbedtls as a CMake subproject, I added it as a subdirectory in my CMakeLists. However, I can't figure out how to use my own config file for mbedtls (MBEDTLS_CONFIG_FILE option to the file I want as a config file). When I put my custom config file to the include folder of mbedtls in the place of the original mbedtls_config.h file it works wel,l but it's not a future-proof option for me, is there anyone that could help me with this setup ?

2 years

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Missing PSA wrapper for MAC verify

by Ruchika Gupta

Hi, I have noticed that PSA driver wrapper function is missing for single part MAC verify function. In the current implementation, it calls the MAC compute wrapper and does the comparison using mbedtls_psa_safer_memcmp. The hardware I am working on allows the complete process to be offloaded to it. Can we have an option for the same in wrapper layer for PSA for MAC verify ? Regards, Ruchika

2 years

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New releases: Mbed TLS 3.4.1 and 2.28.4 LTS

by Dave Rodgman

Hi Mbed TLS users, We are releasing Mbed TLS 3.4.1 and 2.28.4 LTS. As the point release suggests, this is a small update which primarily addresses some expiring test certificates. Full details are available via the release notes: https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.4.1 https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.4 We recommend all users to consider whether they are impacted, and to upgrade appropriately. Thanks, The Mbed TLS team

2 years

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Updated invitation: MBed TLS Technical Forum - Asia @ Every 4 weeks from 2am to 2:50am on Monday 3 times (MST) (mbed-tls@lists.trustedfirmware.org)

by don.harbin＠linaro.org

This event has been updated Changed: time, description MBed TLS Technical Forum - Asia Every 4 weeks from 2am to 2:50am on Monday 3 times Mountain Standard Time - Phoenix Trusted Firmware is inviting you to a scheduled Zoom meeting.Topic: MBed TLS - AsisTime: Aug 14, 2023 10:00 AM London Every 4 weeks on Mon, 20 occurrence(s) Aug 14, 2023 10:00 AM Sep 11, 2023 10:00 AM Oct 9, 2023 10:00 AM Nov 6, 2023 10:00 AM Dec 4, 2023 10:00 AM Jan 1, 2024 10:00 AM Jan 29, 2024 10:00 AM Feb 26, 2024 10:00 AM Mar 25, 2024 10:00 AM Apr 22, 2024 10:00 AM May 20, 2024 10:00 AM Jun 17, 2024 10:00 AM Jul 15, 2024 10:00 AM Aug 12, 2024 10:00 AM Sep 9, 2024 10:00 AM Oct 7, 2024 10:00 AM Nov 4, 2024 10:00 AM Dec 2, 2024 10:00 AM Dec 30, 2024 10:00 AM Jan 27, 2025 10:00 AMPlease download and import the following iCalendar (.ics) files to your calendar system.Weekly: https://linaro-org.zoom.us/meeting/tJEpcOivrT4jGtzyd1M9ASL221VfGUYcCKhw/ics… Zoom Meetinghttps://linaro-org.zoom.us/j/95471735908?pwd=WStaaWhEVXNqcWx1S2pEQU13cHU2UT09Meeting ID: 954 7173 5908Passcode: 300608---One tap mobile+13462487799,,95471735908# US (Houston)+16694449171,,95471735908# US---Dial by your location• +1 346 248 7799 US (Houston)• +1 669 444 9171 US• +1 669 900 9128 US (San Jose)• +1 719 359 4580 US• +1 253 205 0468 US• +1 253 215 8782 US (Tacoma)• +1 305 224 1968 US• +1 309 205 3325 US• +1 312 626 6799 US (Chicago)• +1 360 209 5623 US• +1 386 347 5053 US• +1 507 473 4847 US• +1 564 217 2000 US• +1 646 558 8656 US (New York)• +1 646 931 3860 US• +1 689 278 1000 US• +1 301 715 8592 US (Washington DC)• 877 853 5247 US Toll-free• 888 788 0099 US Toll-freeMeeting ID: 954 7173 5908Find your local number: https://linaro-org.zoom.us/u/aEkjrvuAZ Guests Don Harbin - creator nnac123(a)gmail.com santosdanillo(a)gmail.com schoenle.thomas(a)googlemail.com psa-crypto(a)lists.trustedfirmware.org mbed-tls(a)lists.trustedfirmware.org kris.kwiatkowski(a)pqshield.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=MzE1cHJuZGxwMDFo… Reply for mbed-tls(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=MzE1cHJuZGxwMDFo… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

2 years

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Updated invitation: MBed TLS Technical Forum - Asia @ Every 4 weeks from 3am to 3:50am on Monday from Mon Jan 30 to Sun Aug 13 (MST) (mbed-tls@lists.trustedfirmware.org)

by don.harbin＠linaro.org

This event has been updated Changed: time MBed TLS Technical Forum - Asia Every 4 weeks from 3am to 3:50am on Monday from Monday Jan 30 to Sunday Aug 13 Mountain Standard Time - Phoenix Trusted Firmware is inviting you to a scheduled Zoom meeting. Topic: MBed TLS Technical Forum - Asia Time: Nov 8, 2021 10:00 AM London Every 4 weeks on Mon, 20 occurrence(s) Nov 8, 2021 10:00 AM Dec 6, 2021 10:00 AM Jan 3, 2022 10:00 AM Jan 31, 2022 10:00 AM Feb 28, 2022 10:00 AM Mar 28, 2022 10:00 AM Apr 25, 2022 10:00 AM May 23, 2022 10:00 AM Jun 20, 2022 10:00 AM Jul 18, 2022 10:00 AM Aug 15, 2022 10:00 AM Sep 12, 2022 10:00 AM Oct 10, 2022 10:00 AM Nov 7, 2022 10:00 AM Dec 5, 2022 10:00 AM Jan 2, 2023 10:00 AM Jan 30, 2023 10:00 AM Feb 27, 2023 10:00 AM Mar 27, 2023 10:00 AM Apr 24, 2023 10:00 AM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://linaro-org.zoom.us/meeting/tJ0kc-GsqDktHNGa8CWl6wJ7je6CKD-5zgh8/ics… Join Zoom Meeting https://linaro-org.zoom.us/j/99948462765?pwd=SGlHYlF1Z2owUDNFWWppaGlSRDh5UT… Meeting ID: 999 4846 2765 Passcode: 196117 One tap mobile +12532158782,,99948462765# US (Tacoma) +13462487799,,99948462765# US (Houston) Dial by your location +1 253 215 8782 US (Tacoma) +1 346 248 7799 US (Houston) +1 669 900 9128 US (San Jose) +1 301 715 8592 US (Washington DC) +1 312 626 6799 US (Chicago) +1 646 558 8656 US (New York) 888 788 0099 US Toll-free 877 853 5247 US Toll-free Meeting ID: 999 4846 2765 Find your local number: https://linaro-org.zoom.us/u/anpWWkRdt Guests Don Harbin - creator nnac123(a)gmail.com santosdanillo(a)gmail.com schoenle.thomas(a)googlemail.com psa-crypto(a)lists.trustedfirmware.org mbed-tls(a)lists.trustedfirmware.org kris.kwiatkowski(a)pqshield.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=MzE1cHJuZGxwMDFo… Reply for mbed-tls(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=MzE1cHJuZGxwMDFo… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

2 years

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Updated invitation: MBed TLS Technical Forum - US @ Every 4 weeks from 8:30am to 9:30am on Monday (MST) (mbed-tls@lists.trustedfirmware.org)

by don.harbin＠linaro.org

This event has been updated Changed: title, description MBed TLS Technical Forum - US Every 4 weeks from 8:30am to 9:30am on Monday Mountain Standard Time - Phoenix Trusted Firmware is inviting you to a scheduled Zoom meeting.Trusted Firmware is inviting you to a scheduled Zoom meeting.Topic: MBed TLS Tech Forum - USTime: Aug 28, 2023 04:30 PM London Every 4 weeks on Mon, 20 occurrence(s) Aug 28, 2023 04:30 PM Sep 25, 2023 04:30 PM Oct 23, 2023 04:30 PM Nov 20, 2023 04:30 PM Dec 18, 2023 04:30 PM Jan 15, 2024 04:30 PM Feb 12, 2024 04:30 PM Mar 11, 2024 04:30 PM Apr 8, 2024 04:30 PM May 6, 2024 04:30 PM Jun 3, 2024 04:30 PM Jul 1, 2024 04:30 PM Jul 29, 2024 04:30 PM Aug 26, 2024 04:30 PM Sep 23, 2024 04:30 PM Oct 21, 2024 04:30 PM Nov 18, 2024 04:30 PM Dec 16, 2024 04:30 PM Jan 13, 2025 04:30 PM Feb 10, 2025 04:30 PMPlease download and import the following iCalendar (.ics) files to your calendar system.Weekly: https://linaro-org.zoom.us/meeting/tJ0udu2spj0vHtbQtlCmHwhHCT7ECtJI39J4/ics… Zoom Meetinghttps://linaro-org.zoom.us/j/99314486542?pwd=Q1ZjaFhQeDRrQWxsa3MvT1Mwditqdz09Meeting ID: 993 1448 6542Passcode: 628327---One tap mobile+13462487799,,99314486542# US (Houston)+16694449171,,99314486542# US---Dial by your location• +1 346 248 7799 US (Houston)• +1 669 444 9171 US• +1 669 900 9128 US (San Jose)• +1 719 359 4580 US• +1 253 205 0468 US• +1 253 215 8782 US (Tacoma)• +1 360 209 5623 US• +1 386 347 5053 US• +1 507 473 4847 US• +1 564 217 2000 US• +1 646 558 8656 US (New York)• +1 646 931 3860 US• +1 689 278 1000 US• +1 301 715 8592 US (Washington DC)• +1 305 224 1968 US• +1 309 205 3325 US• +1 312 626 6799 US (Chicago)• 877 853 5247 US Toll-free• 888 788 0099 US Toll-freeMeeting ID: 993 1448 6542Find your local number: https://linaro-org.zoom.us/u/adSjuOyMhI Guests psa-crypto(a)lists.trustedfirmware.org mbed-tls(a)lists.trustedfirmware.org nnac123(a)gmail.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=ZGExMnNqcDB1MDFm… Reply for mbed-tls(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=ZGExMnNqcDB1MDFm… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

2 years

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Updated invitation: MBed TLS Technical Forum @ Every 4 weeks from 9:30am to 10:30am on Monday (MST) (mbed-tls@lists.trustedfirmware.org)

by don.harbin＠linaro.org

This event has been updated MBed TLS Technical Forum Every 4 weeks from 9:30am to 10:30am on Monday Mountain Standard Time - Phoenix Trusted Firmware is inviting you to a scheduled Zoom meeting. Topic: MBed TLS Technical Forum Time: Oct 25, 2021 04:30 PM London Every 4 weeks on Mon, 20 occurrence(s) Oct 25, 2021 04:30 PM Nov 22, 2021 04:30 PM Dec 20, 2021 04:30 PM Jan 17, 2022 04:30 PM Feb 14, 2022 04:30 PM Mar 14, 2022 04:30 PM Apr 11, 2022 04:30 PM May 9, 2022 04:30 PM Jun 6, 2022 04:30 PM Jul 4, 2022 04:30 PM Aug 1, 2022 04:30 PM Aug 29, 2022 04:30 PM Sep 26, 2022 04:30 PM Oct 24, 2022 04:30 PM Nov 21, 2022 04:30 PM Dec 19, 2022 04:30 PM Jan 16, 2023 04:30 PM Feb 13, 2023 04:30 PM Mar 13, 2023 04:30 PM Apr 10, 2023 04:30 PM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://linaro-org.zoom.us/meeting/tJEkceuurT4sGdaksikbUn6FARB9Kuk3ac2o/ics… Join Zoom Meeting https://linaro-org.zoom.us/j/95962635632?pwd=STFkQVltejAzRDJ6NmoxZjhmZC9RUT… Meeting ID: 959 6263 5632 Passcode: 018366 One tap mobile +13462487799,,95962635632# US (Houston) +16699009128,,95962635632# US (San Jose) Dial by your location +1 346 248 7799 US (Houston) +1 669 900 9128 US (San Jose) +1 253 215 8782 US (Tacoma) +1 312 626 6799 US (Chicago) +1 646 558 8656 US (New York) +1 301 715 8592 US (Washington DC) 877 853 5247 US Toll-free 888 788 0099 US Toll-free Meeting ID: 959 6263 5632 Find your local number: https://linaro-org.zoom.us/u/aewUpnQu5y Guests psa-crypto(a)lists.trustedfirmware.org mbed-tls(a)lists.trustedfirmware.org nnac123(a)gmail.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=ZGExMnNqcDB1MDFm… Reply for mbed-tls(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=ZGExMnNqcDB1MDFm… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

2 years

1
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Reminder: MBed TLS Tech Forum - US/Europe External

by Don Harbin

Hi All, A gentle reminder that the US-Europe timezone-friendly MBed TLS Tech forum is next Monday at 4:30 PM UK time. Invite details can be found on the online calendar here <https://www.trustedfirmware.org/meetings/>. If you have any topics, please let Dave Rodgman know. :) Best regards, Don Harbin TrustedFirmware Community Manager don.harbin(a)linaro.org

2 years

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mbedtls_pk_verify verify report MBEDTLS_ERR_RSA_VERIFY_FAILED

by yang ming

When `mbedtls_pk_verify` is used to verify digital signatures generated by openssl, the MBEDTLS_ERR_RSA_VERIFY_FAILED error occurs, openssl Specifies the command used to generate a certificate: ```bash openssl md5 -sign private.key -out sign test.md ``` But when I use `mbedtls_pk_sign(&pk_pri_ctx, MBEDTLS_MD_MD5, md, 0, sign_info, sizeof(sign_info), &size, mbedtls_ctr_drbg_random, &ctrl_drbg)` Generating the signature and using `mbedtls_pk_verify` results are successful, Print the signatures generated by mbedtls are not found to be the same as those generated by openssl. Please help。 mbedtls version: ```c #define MBEDTLS_VERSION_STRING "3.4.0" #define MBEDTLS_VERSION_STRING_FULL "mbed TLS 3.4.0" ``` openssl version: ```c OpenSSL 1.1.1 11 Sep 2018 ```

2 years, 1 month

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PSA crypto drivers

by Ruchika Gupta

Hi, I am currently working on PSA driver for our SoC's security crypto-processor. This processor needs to do some handling when a key is destroyed. In the current implementation in mbedTLS, I don't see a driver wrapper function available in psa_destroy_key(). Is there a specific reason for not having wrapper for driver function available for psa_destroy_key() ? Another query pertaining to the tests in the testsuite in mbedTLS. I was exploring if I could reuse the tests for the crypto-processor implementation. Have these been written with this kind of reuse in mind ? Basically I would like the ability to add driver location to the cases. The few cases I have looked at for psa seem to be very specific. Any pointers/suggestions if anyone is reusing this test suite to test their specific PSA drivers? Regards, Ruchika

2 years, 1 month

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Crash observed while using MBED-TLS

by Ajay Mishra

Hi All, Thank you for sharing the MBED-TLS open source platform. I need help with on of the crashes that I am observing right now. Below are my setup details: Below are my setup details: System information Client side setup Platform : Micro controller based platform stm32 OS : FreeRTOS Compiler: gcc-arm-none-eabi-8-2019-q3-update Below is the backtrace: (gdb) bt #0 panicCB (file=0xc94d7 "memory", line=734, message=0x2000ff50 <sli_wisun_event_loop_task_stack+4224> "Ajay Malloc Failed 88") at build/3pp/freertos/FreeRTOS/Source/include/../../Source/portable/GCC/ARM_CM3/portmacro.h:237 #1 0x0003b2ae in panicHalt_ (file=file@entry=0xc94d7 "memory", line=line@entry=734, message=<optimized out>) at src/platform/core/assert.c:34 #2 0x0003bf0a in reallocInternal (p=<optimized out>, size=68, zeroFill=<optimized out>, file=0xc94d7 "memory", line=734) at src/platform/core/memory.c:317 #3 0x0003c2d8 in reallocWrapper (p=p@entry=0x0, size=<optimized out>, zeroFill=zeroFill@entry=true, file=file@entry=0xc94d7 "memory", line=line@entry=734) at src/platform/core/memory.c:673 #4 0x0003c350 in platformCalloc (n=<optimized out>, size=<optimized out>) at src/platform/core/memory.c:734 #5 0x00043dac in mbedtls_mpi_grow (nblimbs=17, X=0x2001001c <sli_wisun_event_loop_task_stack+4428>) at build/3pp/mbedtls/library/bignum.c:125 #6 mbedtls_mpi_grow (X=0x2001001c <sli_wisun_event_loop_task_stack+4428>, nblimbs=17) at build/3pp/mbedtls/library/bignum.c:115 #7 0x0004414a in mbedtls_mpi_shift_l (X=X@entry=0x2001001c <sli_wisun_event_loop_task_stack+4428>, count=count@entry=256) at build/3pp/mbedtls/library/bignum.c:1016 #8 0x00044818 in mbedtls_mpi_div_mpi (Q=Q@entry=0x0, R=R@entry=0x200100bc <sli_wisun_event_loop_task_stack+4588>, A=A@entry=0x200100bc <sli_wisun_event_loop_task_stack+4588>, B=B@entry=0x200101d0 <sli_wisun_event_loop_task_stack+4864>) at build/3pp/mbedtls/library/bignum.c:1812 #9 0x00044a46 in mbedtls_mpi_mod_mpi (R=R@entry=0x200100bc <sli_wisun_event_loop_task_stack+4588>, A=A@entry=0x200100bc <sli_wisun_event_loop_task_stack+4588>, B=B@entry=0x200101d0 <sli_wisun_event_loop_task_stack+4864>) at build/3pp/mbedtls/library/bignum.c:1917 #10 0x00046486 in ecdsa_verify_restartable (grp=grp@entry=0x20010184 <sli_wisun_event_loop_task_stack+4788>, buf=buf@entry=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", blen=blen@entry=32, Q=Q@entry=0x2001020c <sli_wisun_event_loop_task_stack+4924>, r=r@entry=0x20010120 <sli_wisun_event_loop_task_stack+4688>, s=s@entry=0x2001012c <sli_wisun_event_loop_task_stack+4700>, rs_ctx=0x0) at build/3pp/mbedtls/library/ecdsa.c:649 #11 0x00046660 in mbedtls_ecdsa_read_signature_restartable (ctx=ctx@entry=0x20010184 <sli_wisun_event_loop_task_stack+4788>, hash=hash@entry=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", hlen=hlen@entry=32, sig=sig@entry=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, slen=slen@entry=70, rs_ctx=rs_ctx@entry=0x0) at build/3pp/mbedtls/library/ecdsa.c:881 #12 0x0004668e in mbedtls_ecdsa_read_signature (ctx=ctx@entry=0x20010184 <sli_wisun_event_loop_task_stack+4788>, hash=hash@entry=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", hlen=hlen@entry=32, sig=sig@entry=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, slen=slen@entry=70) at build/3pp/mbedtls/library/ecdsa.c:832 #13 0x0004a830 in ecdsa_verify_wrap (ctx=ctx@entry=0x20010184 <sli_wisun_event_loop_task_stack+4788>, md_alg=md_alg@entry=MBEDTLS_MD_SHA256, hash=hash@entry=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", hash_len=hash_len@entry=32, sig=sig@entry=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, sig_len=sig_len@entry=70) at build/3pp/mbedtls/library/pk_wrap.c:633 #14 0x0004a872 in eckey_verify_wrap (ctx=<optimized out>, md_alg=<optimized out>, hash=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", hash_len=32, sig=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, sig_len=70) at build/3pp/mbedtls/library/pk_wrap.c:252 #15 0x0004a3de in mbedtls_pk_verify (ctx=ctx@entry=0x2001ce48, md_alg=<optimized out>, hash=<optimized out>, hash_len=<optimized out>, sig=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, sig_len=70) at build/3pp/mbedtls/library/pk.c:326 #16 0x0004a55c in mbedtls_pk_verify_ext (type=<optimized out>, options=<optimized out>, ctx=ctx@entry=0x2001ce48, md_alg=<optimized out>, hash=<optimized out>, hash@entry=0x200102a4 <sli_wisun_event_loop_task_stack+5076> "c;\371\274\231xF\004 \207\005\271\257\177\266\224\234\212\205Є\331\366D\304L<\243\303f\246j\250\370\001 ", hash_len=<optimized out>, hash_len@entry=32, sig=0x2001d2e1 "0D\002 r\203\237\331\v\346J*m\312\326\346\004+\a\377\373bX\016\233خ\346\030\356\311Nk\270\341L\002 h;\b\301\206\215\346\005\021c\"|\026\353𦕟\327\300ģ\221\\\324s\n^GW", <incomplete sequence \314>, sig_len=70) at build/3pp/mbedtls/library/pk.c:390 #17 0x0004feb4 in x509_crt_check_signature (rs_ctx=<optimized out>, parent=0x2001cd7c, child=0x2001f8a8) at build/3pp/mbedtls/library/x509_crt.c:2474 #18 x509_crt_find_parent_in (rs_ctx=<optimized out>, self_cnt=<optimized out>, path_cnt=<optimized out>, top=<optimized out>, r_signature_is_good=<optimized out>, r_parent=<optimized out>, candidates=<optimized out>, child=<optimized out>) at build/3pp/mbedtls/library/x509_crt.c:2612 #19 x509_crt_find_parent (rs_ctx=<optimized out>, self_cnt=<optimized out>, path_cnt=<optimized out>, signature_is_good=<optimized out>, parent_is_trusted=<optimized out>, parent=<optimized out>, trust_ca=<optimized out>, child=<optimized out>) at build/3pp/mbedtls/library/x509_crt.c:2709 #20 x509_crt_verify_chain (f_ca_cb=0x0, p_ca_cb=0x0, rs_ctx=0x0, ver_chain=0x200102c4 <sli_wisun_event_loop_task_stack+5108>, profile=0xcd08c <mbedtls_x509_crt_profile_default>, ca_crl=0x0, trust_ca=0x2001cd7c, crt=0x2001f8a8) at build/3pp/mbedtls/library/x509_crt.c:2919 #21 x509_crt_verify_restartable_ca_cb (crt=crt@entry=0x2001f8a8, trust_ca=trust_ca@entry=0x2001cd7c, ca_crl=0x0, profile=0xcd08c <mbedtls_x509_crt_profile_default>, cn=0x0, flags=0x2001dd30, f_vrfy=0x695f1 <tls_sec_prot_lib_x509_crt_verify>, p_vrfy=0x2001c8a0, rs_ctx=0x0, p_ca_cb=0x0, f_ca_cb=0x0) at build/3pp/mbedtls/library/x509_crt.c:3150 --Type <RET> for more, q to quit, c to continue without paging-- #22 0x00050090 in mbedtls_x509_crt_verify_restartable (crt=crt@entry=0x2001f8a8, trust_ca=trust_ca@entry=0x2001cd7c, ca_crl=<optimized out>, profile=<optimized out>, cn=0x0, flags=0x2001dd30, f_vrfy=0x695f1 <tls_sec_prot_lib_x509_crt_verify>, p_vrfy=0x2001c8a0, rs_ctx=rs_ctx@entry=0x0) at build/3pp/mbedtls/library/x509_crt.c:3258 #23 0x00058f7c in ssl_parse_certificate_verify (rs_ctx=0x0, chain=0x2001f8a8, authmode=<optimized out>, ssl=0x2001c918) at build/3pp/mbedtls/library/ssl_tls.c:2542 #24 mbedtls_ssl_parse_certificate (ssl=ssl@entry=0x2001c918) at build/3pp/mbedtls/library/ssl_tls.c:2795 #25 0x00051d1c in mbedtls_ssl_handshake_client_step (ssl=0x2001c918) at build/3pp/mbedtls/library/ssl_cli.c:4295 #26 0x00058210 in mbedtls_ssl_handshake_step (ssl=0x2001c918) at build/3pp/mbedtls/library/ssl_tls.c:5668 #27 0x00069922 in tls_sec_prot_lib_process () #28 0x0006b442 in client_tls_sec_prot_state_machine () #29 0x00069af8 in tls_sec_prot_receive () #30 0x00068072 in supp_eap_tls_sec_prot_state_machine () #31 0x000627b8 in supp_eap_tls_sec_prot_receive () #32 0x0006d28c in kmp_eapol_pdu_if_receive () #33 0x0007d602 in ws_eapol_pdu_mpx_data_indication () #34 0x00080f2e in ws_llc_mac_indication_cb.lto_priv () #35 0x000a8df6 in mac_mcps_sap_data_tasklet.lto_priv () #36 0x000ae3f8 in event_loop_thread.lto_priv () #37 0x000414c0 in xEventGroupSetBitsFromISR (xEventGroup=<optimized out>, uxBitsToSet=<optimized out>, pxHigherPriorityTaskWoken=<optimized out>) at build/3pp/freertos/FreeRTOS/Source/event_groups.c:724 Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) (gdb) I see a crash while my node is trying to authenticate using EAP-TLS to a gateway. I am able to consistently reproduce observe this issue. Is this something that has been already solved or is seen by anybody ? Any inputs on this will help. With regards, Ajay.

2 years, 1 month

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mbedTLS hardware cryptography support

by Achraf BENLETAIFA

Hi, i wanted to ask if the hardware accelerators and TRNG of the Hardware Security Engine (HSE) of NXP S32K3XX microcontrollers are supported by the mbedTLS Library ? because i can't find it in the "MBEDTLS HARDWARE CRYPTOGRAPHY SUPPORT" list. Best regards, Ben

2 years, 1 month

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Re: [EXTERNAL] Re: mbedtls_platform_setup/teardown in TF-M ?

by Shebu Varghese Kuriakose

+ Mbed TLS mailing list for visibility… Regards, Shebu From: Rehan Malak via TF-M <tf-m(a)lists.trustedfirmware.org> Sent: Monday, July 10, 2023 9:44 AM To: Antonio De Angelis <Antonio.DeAngelis(a)arm.com>; tf-m(a)lists.trustedfirmware.org Subject: [TF-M] Re: [EXTERNAL] Re: mbedtls_platform_setup/teardown in TF-M ? Hi Antonio, Thanks a lot for your answer ! Looking at the MbedTLS github link you sent (and the one therein) - https://github.com/Mbed-TLS/mbedtls/issues/6228 PSA: separate driver initialization with a nicer fixed ordering - https://github.com/Mbed-TLS/mbedtls/issues/6007 Define the PSA subsystem initialization interface in Mbed TLS it seems that for the best would be indeed to provide feedback to the MbedTLS/PSA team such that TF-M could just run the adequate psa_* functions. Thanks ! Rehan Intrinsic ID ________________________________ From: Antonio De Angelis <Antonio.DeAngelis(a)arm.com<mailto:Antonio.DeAngelis@arm.com>> Sent: Saturday, July 8, 2023 12:13 AM To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>>; Rehan Malak <Rehan.Malak(a)intrinsic-id.com<mailto:Rehan.Malak@intrinsic-id.com>> Subject: [EXTERNAL] Re: mbedtls_platform_setup/teardown in TF-M ? Hi Rehan, This looks like a non-PSA standardized feature specific to mbed TLS. We don't have any platform in TF-M that requires such setup/teardown so I can't comment from experience, but to me it looks like this would be an mbed TLS specific feature that needs to be hooked underneath the service and into the library. The most natural choice would be indeed to have them as part of the psa_crypto_init() and lower functions, but at this stage I think is not possible to implement this without patching the source code (i.e. there are no options to allow this at build time in TF-M, at least). Note also that mbed TLS has a on open ongoing issue to better define the initialisation sequence for the various operations in psa_crypto_init(): PSA: separate driver initialization with a nicer fixed ordering · Issue #6228 · Mbed-TLS/mbedtls (github.com)<https://github.com/Mbed-TLS/mbedtls/issues/6228> It might be a good place to start to provide feedback regarding this particular aspect of custom platform initialisation if is not being considered there. To conclude, if you want to propose a patch for TF-M to allow such functions to be plugged in (in the meantime that mbed TLS agrees on the long term course of action), I will be happy to review it. Thanks, Antonio ________________________________ From: Rehan Malak via TF-M <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>> Sent: Friday, July 7, 2023 13:15 To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> <tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>> Subject: [TF-M] mbedtls_platform_setup/teardown in TF-M ? Dear TF-M developers, I am currently adapting a basic MbedTLS / PSA Crypto example such that it would run on the NS side with TF-M doing the crypto. At the end, this is very similar to this psa_sign_verify_message_test from the NS crypto test suite : https://git.trustedfirmware.org/TF-M/tf-m-tests.git/tree/test/secure_fw/sui… But my build config of MbedTLS has MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT enabled because I have a custom mbedtls_platform_setup / mbedtls_platform_teardown. And I can't see any place in TF-M where mbedtls_platform_setup/mbedtls_platform_teardown are called : ? -> mbedtls_platform_setup ? -> mbedtls_platform_teardown At first, I tried to put this code into the psa_driver_wrapper_init/psa_driver_wrapper_free but I have a similar problem : tfm_crypto_engine_init -> psa_crypto_init -> psa_driver_wrapper_init ? -> mbedtls_psa_crypto_free -> psa_driver_wrapper_free Is there any cmake/Kconfig option or any C macros to hook TF-M initialization/shutdown with mbedtls_platform_setup/mbedtls_platform_teardown without patching TF-M ? If not, could mbedtls_platform_setup be called here ? https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/secure_fw/… or is there a nicer way of doing this ? (btw, I am currently experimenting on qemu mps2-an521) Thanks for any advice ! 🙂 Best regards, Rehan MALAK Intrinsic ID

2 years, 1 month

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Python version requirements

by Gilles Peskine

Hello, This is a question for integrators and packagers of Mbed TLS, especially if you're integrating the library in some embedded OS or BSP. To build, configure and test Mbed TLS, we use Python for several purposes: * To configure the library with scripts/config.py, unless you use the default configuration or write your own configuration from scratch. * To generate some configuration-independent library source files, but only if you use the development branch, not if you use a release or an LTS branch. * To generate some glue code for PSA drivers, if you use PSA drivers and don't write the glue code by hand. * To generate the unit test source files. * (We have many more maintenance and test scripts but they're out of scope here.) (Python is not necessary, and will remain unnecessary, to configure and build the library with a given set of hardware drivers, so that a typical BSP will not have to depend on Python.) For each of these purposes, how problematic is it if we require a recent version of Python? We're currently planning to drop support for older versions of Python as soon as they become unsupported upstream (so officially dropping 3.8 now — although right now all scripts still work on 3.5). This includes versions of Python that are still shipped in e.g. Linux distributions that are themselves officially supported. Is there demand for supporting older Python versions for some scripts? Also, how problematic is it if some of these purposes require third-party Python packages? Best regards, -- Gilles Peskine Mbed TLS developer

2 years, 1 month

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