| Features | |
| * All modules that use hashes or HMAC can now take advantage of PSA Crypto | |
| drivers when MBEDTLS_PSA_CRYPTO_C is enabled and psa_crypto_init() has | |
| been called. Previously (in 3.3), this was restricted to a few modules, | |
| and only in builds where MBEDTLS_MD_C was disabled; in particular the | |
| entropy module was not covered which meant an external RNG had to be | |
| provided - these limitations are lifted in this version. A new set of | |
| feature macros, MBEDTLS_MD_CAN_xxx, has been introduced that can be used | |
| to check for availability of hash algorithms, regardless of whether | |
| they're provided by a built-in implementation, a driver or both. See | |
| docs/driver-only-builds.md. |