Elliptic Curve Integrated Encryption Scheme for secp256k1 in Dart.
This is the Dart version of eciespy
Encrypt a message
import 'package:eciesdart/eciesdart.dart'; final keyPair = Ecies.generateEcKeyPairBytes(); final message = "Welcome to ECIES"; var messageBytes = utf8.encode(message); final cipherText = Ecies.encrypt(keyPair.publicKey, messageBytes); final decryptedBytes = Ecies.decrypt(keyPair.privateKey, cipherText); final decryptedMessage = utf8.decode(decryptedBytes); print(decryptedMessage);Encrypt using an [AsymmetricKeyPair<ECPublicKey, ECPrivateKey>]
import 'package:eciesdart/eciesdart.dart'; final keyPair = Ecies.generateEcKeyPair(); final message = "Welcome to ECIES"; var messageBytes = utf8.encode(message); final publicKey = keyPair.publicKey.Q!.getEncoded(false); final privateKey = bigIntToBytes(keyPair.privateKey.d!); final cipherText = Ecies.encrypt(publicKey, messageBytes); final decryptedBytes = Ecies.decrypt(privateKey, cipherText); final decryptedMessage = utf8.decode(decryptedBytes); print(decryptedMessage);