See the [list of SSL OP Flags][] for details.

    Constant Description
    DH_CHECK_P_NOT_SAFE_PRIME
    DH_CHECK_P_NOT_PRIME
    DH_UNABLE_TO_CHECK_GENERATOR
    DH_NOT_SUITABLE_GENERATOR
    ALPN_ENABLED
    RSA_PKCS1_PADDING
    RSA_SSLV23_PADDING
    RSA_NO_PADDING
    RSA_PKCS1_OAEP_PADDING
    RSA_X931_PADDING
    RSA_PKCS1_PSS_PADDING
    RSA_PSS_SALTLEN_DIGEST Sets the salt length for RSA_PKCS1_PSS_PADDING to the digest size when signing or verifying.
    RSA_PSS_SALTLEN_MAX_SIGN Sets the salt length for RSA_PKCS1_PSS_PADDING to the maximum permissible value when signing data.
    RSA_PSS_SALTLEN_AUTO Causes the salt length for RSA_PKCS1_PSS_PADDING to be determined automatically when verifying a signature.
    POINT_CONVERSION_COMPRESSED
    POINT_CONVERSION_UNCOMPRESSED
    POINT_CONVERSION_HYBRID