使用BouncyCastle在Java中使用ECIES进行加密

请尝试以下操作：

// add instance of provider classSecurity.addProvider(new BouncyCastleProvider());String name = "secp256r1";// NOTE just "EC" also seems to work hereKeyPairGenerator kpg = KeyPairGenerator.getInstance("ECDH", BouncyCastleProvider.PROVIDER_NAME);kpg.initialize(new ECGenParameterSpec(name));// Key pair to store public and private keyKeyPair keyPair = kpg.generateKeyPair();Cipher iesCipher = Cipher.getInstance("ECIES", BouncyCastleProvider.PROVIDER_NAME);iesCipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic());

请注意，通常，在尝试通过JCE使用Bouncy时，最好保留JCE类而不是Bouncy Castle类。在这种情况下，问题可能出在提供给密钥生成器的参数上。

在上面的代码中，我使用了，

BouncyCastleProvider.PROVIDER_NAME

"BC"

确保您具有最新的系统来运行此代码。该代码已在以下系统上经过测试：

 --- runtime information --- Properties:    java.vendor     : Oracle Corporation    java.specification.name    : Java Platform API Specification    java.specification.version : 1.8    java.runtime.name          : Java(TM) SE Runtime Environment    java.runtime.version       : 1.8.0_65-b17    java.vm.name    : Java HotSpot(TM) 64-Bit Server VMUnlimited crypto: yes --- info for provider Bouncy Castle --- Bouncy Castle version: 1.520000Bouncy Castle provider registered: yes