Dear Trusted Firmware,

I’m Jay, an embedded security firmware developer at Hyosung TNS.

We are a company that manufactures ATMs. For cryptographic communication between ATM PC software and ATM devices, we are looking for a cryptographic library to apply to ATM devices(e.g. cash dispenser). If there is an appropriate library that meets the requirements below, I would appreciate it if you could provide us an estimate. If custom development is required, I would also like to know the expected development period.

[Development environment]

- CPU : TI AM1806(ARM9)

- Compiler : ARM DS-5(armcc)

- RTOS : ThreadX

- C language

- No dynamic allocation

- VFP(Vectored Floating Point) not supported

[Security Features]

- RSA(2048bits) : Certificate and signature verification, Data encryption and decryption

- ECC(256bits) : Generating a symmetric key using ECDH and ECDSA

- 3DES, AES, AEAD, SHA256, HMAC256, etc : Algorithms related to data encryption and decryption

- Random : Prevent replay attacks

Please contact me if you have any questions.

Best Regards,

Jay

Jaewhan Shin Performance Manager | CISSP | Firmware Development Team Suseo Bldg., 281, Gwangpyeong-ro, Gangnam-gu, Seoul, 06349 Korea t. 82-2-6181-2480, m. 82-10-8158-3015 e. jaewhan.shin@hyosung.com hyosunginnovue.com

HYOSUNG TNS, Inc. Email Disclaimer. This communication, including attachments, is intended only for the exclusive use of addressee and may contain proprietary, confidential, or privileged information. Any use, review, duplication, disclosure, dissemination, or distribution is strictly prohibited. If you were not the intended recipient, and you have received this communication in error, please notify sender immediately by return e-mail, delete this communication, and destroy any copies.