/*** 公鑰加密** @param data 待加密數(shù)據(jù)* @param publicKey 公鑰* @return byte[] 加密數(shù)據(jù)* @throws Exception*/public static byte[] encryptByPublicKey(byte[] data, PublicKey publicKey) throws Exception {Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());Cipher cipher = Cipher.getInstance("ECIES","BC");//寫(xiě)不寫(xiě) BC都可以，都是會(huì)選擇BC實(shí)現(xiàn)來(lái)做cipher.init(Cipher.ENCRYPT_MODE, publicKey);return cipher.doFinal(data);}/*** 私鑰解密** @param data 待解密數(shù)據(jù)* @param privateKey 私鑰* @return byte[] 解密數(shù)據(jù)* @throws Exception*/public static byte[] decryptByPrivateKey(byte[] data, PrivateKey privateKey)throws Exception {Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());Cipher cipher = Cipher.getInstance("ECIES","BC");cipher.init(Cipher.DECRYPT_MODE, privateKey);return cipher.doFinal(data);}

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