SIG_ALG_ECDSA_SECP256R1_SHA256 => 0x0403,
SIG_ALG_ECDSA_SECP384R1_SHA384 => 0x0503,
SIG_ALG_ECDSA_SECP521R1_SHA512 => 0x0603,
SIG_ALG_ECDSA_SECP256R1_SHA256 => 0x0403,
SIG_ALG_ECDSA_SECP384R1_SHA384 => 0x0503,
SIG_ALG_ECDSA_SECP521R1_SHA512 => 0x0603,