添加 github.com/pion/dtls 代码

dtls-2.0.9/pkg/crypto/signature/signature.go

@@ -0,0 +1,24 @@
+// Package signature provides our implemented Signature Algorithms
+package signature
+
+// Algorithm as defined in TLS 1.2
+// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-16
+type Algorithm uint16
+
+// SignatureAlgorithm enums
+const (
+	Anonymous Algorithm = 0
+	RSA       Algorithm = 1
+	ECDSA     Algorithm = 3
+	Ed25519   Algorithm = 7
+)
+
+// Algorithms returns all implemented Signature Algorithms
+func Algorithms() map[Algorithm]struct{} {
+	return map[Algorithm]struct{}{
+		Anonymous: {},
+		RSA:       {},
+		ECDSA:     {},
+		Ed25519:   {},
+	}
+}