Add dependencies/vendor (whatsapp)

vendor/go.mau.fi/libsignal/keys/identity/IdentityKeyPair.go

@@ -0,0 +1,39 @@
+package identity
+
+import (
+	"go.mau.fi/libsignal/ecc"
+)
+
+// NewKeyPair returns a new identity key with the given public and private keys.
+func NewKeyPair(publicKey *Key, privateKey ecc.ECPrivateKeyable) *KeyPair {
+	keyPair := KeyPair{
+		publicKey:  publicKey,
+		privateKey: privateKey,
+	}
+
+	return &keyPair
+}
+
+// NewKeyPairFromBytes returns a new identity key from the given serialized bytes.
+//func NewKeyPairFromBytes(serialized []byte) KeyPair {
+//}
+
+// KeyPair is a holder for public and private identity key pair.
+type KeyPair struct {
+	publicKey  *Key
+	privateKey ecc.ECPrivateKeyable
+}
+
+// PublicKey returns the identity key's public key.
+func (k *KeyPair) PublicKey() *Key {
+	return k.publicKey
+}
+
+// PrivateKey returns the identity key's private key.
+func (k *KeyPair) PrivateKey() ecc.ECPrivateKeyable {
+	return k.privateKey
+}
+
+// Serialize returns a byte array that represents the keypair.
+//func (k *KeyPair) Serialize() []byte {
+//}