Рыба проекта. Минимальная функциональность

pkg/domain/crypto/encryptor.go

@@ -0,0 +1,13 @@
+package crypto
+
+import "io"
+
+// Encryptor defines the contract for encrypting plaintext to multiple recipients.
+type Encryptor interface {
+	Encrypt(
+		plaintext io.Reader,
+		recipients []RecipientPub,
+		sink io.Writer,
+		rand io.Reader,
+	) error
+}