changes

crates/domain/src/testing/fakes/cipher.rs

@@ -0,0 +1,18 @@
+use crate::errors::DomainError;
+use crate::provider::{CredentialCipher, EncryptedCredential};
+
+const MASK: u8 = 0x5a;
+
+pub struct FakeCredentialCipher;
+
+impl CredentialCipher for FakeCredentialCipher {
+    fn encrypt(&self, plaintext: &[u8]) -> Result<EncryptedCredential, DomainError> {
+        Ok(EncryptedCredential::from_persistence(
+            plaintext.iter().map(|byte| byte ^ MASK).collect(),
+        ))
+    }
+
+    fn decrypt(&self, credential: &EncryptedCredential) -> Result<Vec<u8>, DomainError> {
+        Ok(credential.value().iter().map(|byte| byte ^ MASK).collect())
+    }
+}