| API changes | |
| * mbedtls_rsa_init() now always selects the PKCS#1v1.5 encoding for an RSA | |
| key. To use an RSA key with PSS or OAEP, call mbedtls_rsa_set_padding() | |
| after initializing the context. mbedtls_rsa_set_padding() now returns an | |
| error if its parameters are invalid. |