| Bugfix |
| * Failures of alternative implementations of AES or DES single-block |
| functions enabled with MBEDTLS_AES_ENCRYPT_ALT, MBEDTLS_AES_DECRYPT_ALT, |
| MBEDTLS_DES_CRYPT_ECB_ALT or MBEDTLS_DES3_CRYPT_ECB_ALT were ignored. |
| This does not concern the implementation provided with Mbed TLS, |
| where this function cannot fail, or full-module replacements with |
| MBEDTLS_AES_ALT or MBEDTLS_DES_ALT. Reported by Armelle Duboc in #1092. |
| * Some failures of HMAC operations were ignored. These failures could only |
| happen with an alternative implementation of the underlying hash module. |
| |
| Features |
| * Warn if errors from certain functions are ignored. This is currently |
| supported on GCC-like compilers and on MSVC and can be configured through |
| the macro MBEDTLS_CHECK_RETURN. The warnings are always enabled |
| (where supported) for critical functions where ignoring the return |
| value is almost always a bug. Enable the new configuration option |
| MBEDTLS_CHECK_RETURN_WARNING to get warnings for other functions. This |
| is currently implemented in the AES, DES and md modules, and will be |
| extended to other modules in the future. |
