TLSEXT_SIGALG_ecdsa_secp256r1_sha256_name
{ TLSEXT_SIGALG_ecdsa_secp256r1_sha256_name,
{ TLSEXT_SIGALG_ecdsa_secp256r1_sha256, TLSEXT_SIGALG_ecdsa_secp256r1_sha256_name },