Override toString for All Private Classes (#110)

* feat: override toString for _HmacSecretKey

* feat: override toString in most Private Classes

Author: HamdaanAliQuatil

lib/src/impl_ffi/impl_ffi.aescbc.dart

@@ -97,6 +97,11 @@ class _AesCbcSecretKey implements AesCbcSecretKey {
   final Uint8List _key;
   _AesCbcSecretKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'AesCbcSecretKey\'';
+  }
+
   @override
   Future<Uint8List> decryptBytes(List<int> data, List<int> iv) async =>
       await _bufferStream(decryptStream(Stream.value(data), iv));

lib/src/impl_ffi/impl_ffi.aesctr.dart

@@ -204,6 +204,11 @@ class _AesCtrSecretKey implements AesCtrSecretKey {
   final Uint8List _key;
   _AesCtrSecretKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'AesCtrSecretKey\'';
+  }
+
   void _checkArguments(
     List<int> counter,
     int length,

lib/src/impl_ffi/impl_ffi.aesgcm.dart

@@ -115,6 +115,11 @@ class _AesGcmSecretKey implements AesGcmSecretKey {
   final Uint8List _key;
   _AesGcmSecretKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'AesGcmSecretKey\'';
+  }
+
   @override
   Future<Uint8List> decryptBytes(
     List<int> data,

lib/src/impl_ffi/impl_ffi.ecdh.dart

@@ -73,6 +73,11 @@ class _EcdhPrivateKey implements EcdhPrivateKey {
 
   _EcdhPrivateKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'EcdhPrivateKey\'';
+  }
+
   @override
   Future<Uint8List> deriveBits(int length, EcdhPublicKey publicKey) async {
     if (publicKey is! _EcdhPublicKey) {
@@ -167,6 +172,11 @@ class _EcdhPublicKey implements EcdhPublicKey {
 
   _EcdhPublicKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'EcdhPublicKey\'';
+  }
+
   @override
   Future<Map<String, dynamic>> exportJsonWebKey() async =>
       // Neither Chrome or Firefox produces 'use': 'enc' for ECDH, we choose to

lib/src/impl_ffi/impl_ffi.ecdsa.dart

@@ -185,6 +185,11 @@ class _EcdsaPrivateKey implements EcdsaPrivateKey {
 
   _EcdsaPrivateKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'EcdsaPrivateKey\'';
+  }
+
   @override
   Future<Uint8List> signBytes(List<int> data, Hash hash) =>
       signStream(Stream.value(data), hash);
@@ -209,6 +214,11 @@ class _EcdsaPublicKey implements EcdsaPublicKey {
 
   _EcdsaPublicKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'EcdsaPublicKey\'';
+  }
+
   @override
   Future<bool> verifyBytes(List<int> signature, List<int> data, Hash hash) =>
       verifyStream(signature, Stream.value(data), hash);

lib/src/impl_ffi/impl_ffi.hkdf.dart

@@ -24,6 +24,11 @@ class _HkdfSecretKey implements HkdfSecretKey {
 
   _HkdfSecretKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'HkdfSecretKey\'';
+  }
+
   @override
   Future<Uint8List> deriveBits(
     int length,

lib/src/impl_ffi/impl_ffi.hmac.dart

@@ -107,6 +107,11 @@ class _HmacSecretKey implements HmacSecretKey {
 
   _HmacSecretKey(this._keyData, this._hash);
 
+  @override
+  String toString() {
+    return 'Instance of \'HmacSecretKey\'';
+  }
+
   @override
   Future<Uint8List> signBytes(List<int> data) => signStream(Stream.value(data));
 

lib/src/impl_ffi/impl_ffi.pbkdf2.dart

@@ -25,6 +25,11 @@ class _Pbkdf2SecretKey implements Pbkdf2SecretKey {
 
   _Pbkdf2SecretKey(this._key);
 
+  @override
+  String toString() {
+    return 'Instance of \'Pbkdf2SecretKey\'';
+  }
+
   @override
   Future<Uint8List> deriveBits(
     int length,

lib/src/impl_ffi/impl_ffi.rsaoaep.dart

@@ -173,6 +173,11 @@ class _RsaOaepPrivateKey implements RsaOaepPrivateKey {
 
   _RsaOaepPrivateKey(this._key, this._hash);
 
+  @override
+  String toString() {
+    return 'Instance of \'RsaOaepPrivateKey\'';
+  }
+
   @override
   Future<Uint8List> decryptBytes(List<int> data, {List<int>? label}) async {
     return _rsaOaepeEncryptOrDecryptBytes(
@@ -204,6 +209,11 @@ class _RsaOaepPublicKey implements RsaOaepPublicKey {
 
   _RsaOaepPublicKey(this._key, this._hash);
 
+  @override
+  String toString() {
+    return 'Instance of \'RsaOaepPublicKey\'';
+  }
+
   @override
   Future<Uint8List> encryptBytes(List<int> data, {List<int>? label}) async {
     return _rsaOaepeEncryptOrDecryptBytes(

lib/src/impl_ffi/impl_ffi.rsapss.dart

@@ -105,6 +105,11 @@ class _RsaPssPrivateKey implements RsaPssPrivateKey {
 
   _RsaPssPrivateKey(this._key, this._hash);
 
+  @override
+  String toString() {
+    return 'Instance of \'RsaPssPrivateKey\'';
+  }
+
   @override
   Future<Uint8List> signBytes(List<int> data, int saltLength) {
     return signStream(Stream.value(data), saltLength);
@@ -149,6 +154,11 @@ class _RsaPssPublicKey implements RsaPssPublicKey {
 
   _RsaPssPublicKey(this._key, this._hash);
 
+  @override
+  String toString() {
+    return 'Instance of \'RsaPssPublicKey\'';
+  }
+
   @override
   Future<bool> verifyBytes(
     List<int> signature,