如何使用国密SM2算法进行加解密 加密过程 1. 生成ECC密钥(公钥)。 当前SM2密钥生成的参数只支持封装并ASN.1序列化后的数据(公钥91字节,私钥51字节),而很多开发者使用的密钥数据……欲了解更多信息欢迎访问华为HarmonyOS开发者官网
同样使用Cryptography库中的ciphers模块中的Cipher类来进行解密。 fromcryptography.hazmat.primitives.ciphersimportCipher,algorithms# 生成解密器decryptor=Cipher(algorithms.SM2Decryption(private_key)).decryptor()# 解密密文decrypted_plaintext=decryptor.update(ciphertext)+decryptor.finalize() 1. 2. 3. 4. 5. 6....
System.out.println("--->生成私钥:" + privateStr); String encryptData =encrypt(publicStr, data); System.out.println("--->加密结果:" + encryptData); String decryptData =decrypt(privateStr,encryptData); System.out.println("--->解密结果:" + decryptData); String sign = SM2Utils.sign(priv...
intinOff,intinLen)throwsInvalidCipherTextException{if(forEncryption){returnencrypt(in,inOff,inLen);}else{returndecrypt(in,inOff,inLen);}}publicintgetOutputSize(intinputLen){return(1+2*curveLength)+inputLen+digest.getDigestSize();}protectedECMultipliercreateBasePointMultiplier(){returnnewFixed...
*/publicstaticbyte[] encrypt(byte[] data, ECPublicKeyParameters publicKey)throwsException {SM2Engineengine=newSM2Engine();ParametersWithRandompwr=newParametersWithRandom(publicKey,newSecureRandom()); engine.init(true, pwr);returnengine.processBlock(data,0, data.length); ...
importcom.sun.net.ssl.internal.ssl.Provider;importorg.bouncycastle.jce.provider.BouncyCastleProvider;importjavax.crypto.Cipher;importjava.security.*;importjava.util.Base64;publicclassSM2EncryptDecrypt{publicstaticvoidmain(String[]args)throwsNoSuchAlgorithmException,NoSuchPaddingException,InvalidKeyException,Illegal...
out_len =0;EVP_EncryptUpdate(ctx, out_buf, &out_len, in->in_data, in->in_data_len);if(1) {printf("Debug: out_len=%d\n", out_len); } out_padding_len =0;EVP_EncryptFinal_ex(ctx, out_buf+out_len, &out_padding_len);if(1) ...
static int test_sm2_do_encrypt(void) { SM2_KEY sm2_key; uint8_t plaintext[] = "Hello World!"; SM2_CIPHERTEXT ciphertext; uint8_t plainbuf[SM2_MAX_PLAINTEXT_SIZE] = {0}; size_t plainlen = 0; int r = 0; size_t i = 0; for (i = 0; i < TEST_COUNT; i++) { if (...
13、eprintf(Encrypt and decrypt data succeeded!n);ret = 0; clean_up:if (pctx)EVP_PKEY_CTX_free(pctx);if (pkey)EVP_PKEY_free(pkey);if (priv_key_str)OPENSSL_free(priv_key_str);if (ctx)BN_CTX_end(ctx); BN_CTX_free(ctx);if (x_coordinate_str)OPENSSL_free(x_coordinate_str);if...
return encrypt(publicKey, data, SM2EngineExtend.CIPHERMODE_NORM); } /** * SM2加密算法 * @param publicKey 公钥 * @param data 待加密的数据 * @param cipherMode 密文排列方式0-C1C2C3;1-C1C3C2; * @return 密文,BC库产生的密文带由04标识符,与非BC库对接时需要去掉开头的04 ...