https://github.com/meetleev/flutter_crypto_x
A Dart library for encryption and decryption. Advanced RSA based on pointycastle.
https://github.com/meetleev/flutter_crypto_x
oaep pkcs1 rsa rsa-encryption
Last synced: about 1 year ago
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A Dart library for encryption and decryption. Advanced RSA based on pointycastle.
- Host: GitHub
- URL: https://github.com/meetleev/flutter_crypto_x
- Owner: meetleev
- License: apache-2.0
- Created: 2022-09-16T10:48:13.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-11-05T07:35:56.000Z (over 1 year ago)
- Last Synced: 2024-12-25T16:41:14.889Z (over 1 year ago)
- Topics: oaep, pkcs1, rsa, rsa-encryption
- Language: Dart
- Homepage:
- Size: 281 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# crypto_x
[](https://pub.dev/packages/crypto_x)
[](https://pub.dev/packages/crypto_x)
A Dart library for encryption and decryption. Advanced RSA, AES based on pointycastle.
## Features
* RSA with PKCS1 and OAEP encoding.
* Generate RSA KeyPairs and import to pem format.
## Getting started
Add the package to your `pubspec.yaml`:
```yaml
dependencies:
crypto_x:
```
## Usage
### AES
#### Supported modes are:
- CBC `AESMode.cbc`
- CFB-8 `AESMode.cfb8`
- CFB-128 `AESMode.cfb`
- CTR `AESMode.ctr`
- ECB `AESMode.ecb`
- OFB-128 `AESMode.ofb`
```dart
final key = CipherKey.fromUtf8('your key................');
final iv = CipherIV.fromLength(16);
var aes = AES(key: key, mode: AESMode.cbc);
CryptoBytes encrypted = aes.encrypt(CryptoBytes.fromUTF8('hello world.'), iv: iv);
String encryptedBase64 = decrypted.base64;
CryptoBytes decrypted = aes.decrypt(encrypted, iv: iv);
String plainText = decrypted.toString();
```
### RSA
* encrypt and decrypt
```dart
var privateRSA = RSA(
privateKey: privateKey);
var publicRSA = RSA(
publicKey: publicKey);
CryptoBytes signature = publicRSA.encrypt(CryptoBytes.fromUTF8('hello world'));
String ciphertext = signature.base64;
CryptoBytes plainBytes = publicRSA.decrypt(signature);
String plainText = plainBytes.toString();
```
* sign and verify
```dart
var rsaSigner = RSASigner(digestType = DigestType.sha256, privateKey: privateKey, publicKey: publicKey);
var plainBytes = CryptoBytes.fromUTF8('hello world');
CryptoBytes signature = rsaSigner.sign(plainBytes);
bool isSame = rsaSigner.verify(signature, plainBytes);
```
[comment]: <> (## Additional information)