我是 ECIES 新手,使用 ECIES 算法进行加密和解密。下面是我用于加密和解密机制的代码片段。
public static void main(String[] args) throws Exception {
// Server Side Generates KeyPair
KeyPair keyPair = serverSideKeyGeneration();
// Client receives the KeyPair or Public Key before sending actual call to server
String originalString = "Hello";
byte[] ecryptedBase64Data = clientSideCodeToGenerateEncryptedData(originalString, keyPair);
System.out.println("Encrypted Data" + ecryptedBase64Data);
// Server receives the encrypted Data and decrypt using Private Key
String originalValue = decryptEncodedString(keyPair, ecryptedBase64Data);
System.out.println(originalValue);
}
private static byte[] clientSideCodeToGenerateEncryptedData(String originalString, KeyPair keyPair) throws Exception{
Cipher cipher = Cipher.getInstance("ECIES");
cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic());
byte[] ecryptedBase64Data = Base64.encode(cipher.doFinal(originalString.getBytes("UTF-8")));
return ecryptedBase64Data;
}
private static KeyPair serverSideKeyGeneration() throws Exception {
Security.addProvider(new BouncyCastleProvider());
KeyPairGenerator kpg = KeyPairGenerator.getInstance("ECIES");
kpg.initialize(new ECGenParameterSpec("secp256r1"));
// Key pair to store public and private key
KeyPair keyPair = kpg.generateKeyPair();
// System.out.println(keyPair.getPublic());
// System.out.println(keyPair.getPrivate());
return keyPair;
}
private static String decryptEncodedString(KeyPair keyPair, byte[] ret) throws Exception {
Cipher iesCipherServer = Cipher.getInstance("ECIES");
iesCipherServer.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
String originalValue = new String(iesCipherServer.doFinal(Base64.decode(ret)));
return originalValue;
}
上面的代码片段工作正常,但我想要的是在客户端和服务器之间进行任何通信之前,客户端将发送一个启动请求并在其末尾接收公钥。然后将使用公钥加密有效负载并将其发送到服务器,并在接收到后,服务器将使用之前生成的私钥解密数据。
当我使用以下代码段将 keyPair 存储为 JSON 对象时,它会引发异常:
MobileData data = new MobileData();
data.setKeyPair(keyPair);
ObjectMapper mapper = new ObjectMapper();
String jsonString = mapper.writeValueAsString(data);
例外:
org.codehaus.jackson.map.JsonMappingException: No serializer found for class org.bouncycastle.math.ec.WNafL2RMultiplier 并且没有发现创建 BeanSerializer 的属性(为避免异常,禁用 SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS))(通过参考链:MobileData ["keyPair"]->java.security.KeyPair["public"]->org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey["parameters"]->org.bouncycastle.jce.spec.ECParameterSpec["曲线"]->org.bouncycastle.math.ec.custom.sec.SecP256R1Curve["乘数"])
如何将公钥发送给客户端?