SignatureSchemes:  []SignatureScheme{PSSWithSHA256},
			SupportedVersions: []uint16{VersionTLS13},
		}, "not valid for requested server name"},
		{ecdsaCert, &ClientHelloInfo{
			SignatureSchemes:  []SignatureScheme{ECDSAWithP384AndSHA384},
			SupportedVersions: []uint16{VersionTLS13},
		}, "signature algorithms"},
		{pkcs1Cert, &ClientHelloInfo{
			SignatureSchemes:  []SignatureScheme{PSSWithSHA256, ECDSAWithP256AndSHA256},

	PSSWithSHA256 SignatureScheme = 0x0804
	PSSWithSHA384 SignatureScheme = 0x0805
	PSSWithSHA512 SignatureScheme = 0x0806

	// ECDSA algorithms. Only constrained to a specific curve in TLS 1.3.
	ECDSAWithP256AndSHA256 SignatureScheme = 0x0403
	ECDSAWithP384AndSHA384 SignatureScheme = 0x0503
	ECDSAWithP521AndSHA512 SignatureScheme = 0x0603

	// EdDSA algorithms.
	Ed25519 SignatureScheme = 0x0807

		if len(data) < int(sigAndHashLen) {
			return false
		}
		numSigAlgos := sigAndHashLen / 2
		m.supportedSignatureAlgorithms = make([]SignatureScheme, numSigAlgos)
		for i := range m.supportedSignatureAlgorithms {
			m.supportedSignatureAlgorithms[i] = SignatureScheme(data[0])<<8 | SignatureScheme(data[1])
			data = data[2:]
		}
	}

	if len(data) < 2 {
		return false
	}