- mbed-tls - lists.trustedfirmware.org

Request for feedback about Mbed TLS 4: custom ECC mechanisms

by Gilles Peskine

Hello, This is a request for feedback about the next major release of Mbed TLS (TF-PSA-Crypto 1.0 + Mbed TLS 4,0). (Mbed TLS 3.6 LTS will remain supported with its current feature set until at least Q2 2027.) Please reply to this thread or on the GitHub issue linked below. If you wish to leave feedback privately, you can reply privately and your feedback will be anonymized before sharing outside Arm. https://github.com/Mbed-TLS/TF-PSA-Crypto/issues/102 Mbed TLS 4 and TF-PSA-Crypto will … [View More]

10 months, 2 weeks

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Request for feedback about Mbed TLS 4: custom RSA mechanisms

by Gilles Peskine

Hello, This is a request for feedback about the next major release of Mbed TLS (TF-PSA-Crypto 1.0 + Mbed TLS 4,0). (Mbed TLS 3.6 LTS will remain supported with its current feature set until at least Q2 2027.) Please reply to this thread or on the GitHub issue linked below. If you wish to leave feedback privately, you can reply privately and your feedback will be anonymized before sharing outside Arm. https://github.com/Mbed-TLS/TF-PSA-Crypto/issues/104 Mbed TLS 4 and TF-PSA-Crypto will … [View More]

10 months, 2 weeks

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Request for feedback about Mbed TLS 4: DES (including 3DES)

by Gilles Peskine

Hello, This is a request for feedback about the next major release of Mbed TLS (TF-PSA-Crypto 1.0 + Mbed TLS 4,0). (Mbed TLS 3.6 LTS will remain supported with its current feature set until at least Q2 2027.) Please reply to this thread or on the GitHub issue linked below. If you wish to leave feedback privately, you can reply privately and your feedback will be anonymized before sharing outside Arm. https://github.com/Mbed-TLS/mbedtls/issues/9164 We are considering fully removing DES, … [View More]

10 months, 2 weeks

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MBEDTLS Default Search Path

by Frozen Forest

I am trying to build *https://github.com/ithewei/libhv <https://github.com/ithewei/libhv>* with MBEDTLS on Windows but it doesn't have include and library define options on *CMake*. When I ask them with an issue on *GitHub*, they said I need to use *"Default Search Path"*. I installed it with *cmake --build . --config Release --target INSTALL *and I can see it in *Program Files/MBed TLS. *I think I need to define an environment variable. But what is correct names for includes and libraries ?

10 months, 2 weeks

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Certificate validation

by Sushma Narayan Shetty

Hi Team, Need support on one the below query. I had previously raised this in issue #9116 : Client certificate verify · Issue #9116 · Mbed-TLS/mbedtls · GitHub<https://github.com/Mbed-TLS/mbedtls/issues/9116> .However I was asked to redirect the query to the mbedTLS support. Q#1 : I have a client certificate chain (end entity cert, intermediate cert and root cert) and I have got 1 public key (extracted from root CA cert) on my server. Is there any way in mbedTLS where I can validate … [View More]

11 months

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Testing an an Ubuntu VM, issue with configuration

by Christian Huitema

I am testing a test program in an Ubuntu VM, and I have an issue. I started by configuring MbedTLS in "full" mode (scripts/config.py full), but in that case the linker fails, "in function `psa_load_builtin_key_into_slot`, psa_crypto_slot_management.c: undefined reference to 'mbedtls_psa_platform_get_builtin_key`. I can suppress the error by editing `include\mbedtls\mbedtls_config.h` and removing the option `MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS`. The compile succeeds, but the call to `… [View More]

11 months

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UTF-8 in code files

by Stephan Koch

Hello Mbed TLS team, Mbed TLS 3.6 introduced the first UTF-8 characters “±” in source code, see mbedtls_config.h, line 4179: * at the same pace. The typical accuracy of an RTC crystal is ±100 to ±20 parts Is this intended? Thanks Stephan

11 months

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Using the "psa_verify_message" function

by Christian Huitema

The specification of the "psa_verify_message" function is simple enough: pass a key ID, an algorithm ID, the data that were signed, the signature received from the peer, and receive a status. There is just one tiny problem: in the application, the algorithm ID is specified as a 16 bit TLS SignatureScheme (https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-si…), which is not quite the same as "psa_algorithm_t". Is there a simple way to covert from TLS SignatureScheme … [View More]

11 months

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Error while parsing certificate

by Subramanian Gopi Krishnan

Hi, I have an inhouse developed secure authentication program that uses certificate for authentication. I have used mbedtls library for the x.509 certificate verification purpose. In our custom PKI we have only three level of certificates, Root-CA -> Intermediate-CA -> Device-Cert. The embedded device has very limited memory, so instead of sending whole certificate chain, the devices communicates intermediate_CA and device cert (in der format base64 encoded) in separate packet. Root-CA … [View More]

11 months, 1 week

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Help debugging TLS handshake failure

by Jay Malhotra

Hi, I'm having an issue with some code using Mbed TLS and I was pointed to this mailing list as the correct place to ask for support. Please let me know if I should ask somewhere else. I'm trying to connect to my local government's website via a Raspberry Pi Pico, using a TLS client based on lwIP and altcp_tls. It's based off of the example from the Raspberry Pi team here: https://github.com/raspberrypi/pico-examples/tree/master/pico_w/wifi/tls_cl… . My Mbed TLS config is the same as what they … [View More]

11 months, 1 week

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