| Default behavior changes | |
| * The PK, X.509, PKCS7 and TLS modules now always use the PSA subsystem | |
| to perform cryptographic operations, with a few exceptions documented | |
| in docs/architecture/psa-migration/psa-limitations.md. This | |
| corresponds to the behavior of Mbed TLS 3.x when | |
| MBEDTLS_USE_PSA_CRYPTO is enabled. In effect, MBEDTLS_USE_PSA_CRYPTO | |
| is now always enabled. | |
| * psa_crypto_init() must be called before performing any cryptographic | |
| operation, including indirect requests such as parsing a key or | |
| certificate or starting a TLS handshake. |