Add dependencies/vendor (whatsapp)

vendor/go.mau.fi/libsignal/state/store/IdentityKeyStore.go

@@ -0,0 +1,29 @@
+package store
+
+import (
+	"go.mau.fi/libsignal/keys/identity"
+	"go.mau.fi/libsignal/protocol"
+)
+
+// IdentityKey provides an interface to identity information.
+type IdentityKey interface {
+	// Get the local client's identity key pair.
+	GetIdentityKeyPair() *identity.KeyPair
+
+	// Return the local client's registration ID.
+	//
+	// Clients should maintain a registration ID, a random number between 1 and 16380
+	// that's generated once at install time.
+	GetLocalRegistrationId() uint32
+
+	// Save a remote client's identity key in our identity store.
+	SaveIdentity(address *protocol.SignalAddress, identityKey *identity.Key)
+
+	// Verify a remote client's identity key.
+	//
+	// Determine whether a remote client's identity is trusted. Trust is based on
+	// 'trust on first use'. This means that an identity key is considered 'trusted'
+	// if there is no entry for the recipient in the local store, or if it matches the
+	// saved key for a recipient in the local store.
+	IsTrustedIdentity(address *protocol.SignalAddress, identityKey *identity.Key) bool
+}