Рыба проекта. Минимальная функциональность

pkg/domain/crypto/kem.go

@@ -0,0 +1,50 @@
+package crypto
+
+import "io"
+
+// KEM defines the contract for a Key Encapsulation Mechanism.
+type KEM interface {
+	SchemeID() uint16
+	GenerateKeyPair(
+		rand io.Reader,
+	) (
+		RecipientPub,
+		RecipientPriv,
+		error,
+	)
+	Encapsulate(
+		pub RecipientPub,
+		rand io.Reader,
+	) (
+		ciphertext []byte,
+		sharedSecret []byte,
+		err error,
+	)
+	Decapsulate(
+		priv RecipientPriv,
+		ciphertext []byte,
+	) (
+		sharedSecret []byte,
+		err error,
+	)
+	LoadPriv(
+		raw []byte,
+	) (
+		RecipientPriv,
+		error,
+	)
+}
+
+// RecipientPub represents a public recipient key.
+type RecipientPub interface {
+	SchemeID() uint16
+	KeyID() []byte
+	Raw() []byte
+}
+
+// RecipientPriv represents a private recipient key.
+type RecipientPriv interface {
+	SchemeID() uint16
+	KeyID() []byte
+	Raw() []byte
+}