DOCTYPE html>SM2 Encryption Example<textareaid="plaintext"rows="4"cols="50">Hello, SM2!</textarea>加密functionencryptText(){varplaintext=document.getElementById("plaintext").value;varpublicKeyHex="公钥十六进制字符串";// 替换成实际的公钥varsm2=newKJUR.crypto.SM2({'publicKeyHex':publicKeyHex...
printf("y coordinate in SM2 public key (in hex form):\n"); printf("%s\n\n", y_coordinate_str);/*compute SM2 encryption*/if( (EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2)) !=1) {gotoclean_up; }if( !(ectx =EVP_PKEY_CTX_new(pkey, NULL)) ) {gotoclean_up; }if( (EVP_P...
byte[]arrayOfBytes =Base64.decodeBase64(sm2Engine.processBlock(cipherDataByte,0,cipherDataByte.length)); //得到明文:SM2 Encryption Test String data =new String(arrayOfBytes); returndata; } } 2.解密前端请求的报文 packagecom.iroc.springboot.controller; importcom.google.gson.JsonObject; importcom...
8、e_str);/* compute SM2 encryption */if ( (EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2) != 1 )goto clean_up;if ( !(ectx = EVP_PKEY_CTX_new(pkey, NULL) )goto clean_up;if ( (EVP_PKEY_encrypt_init(ectx) != 1 )goto clean_up;if ( (EVP_PKEY_encrypt(ectx, NULL, &ciph...
The optimization method based on the embedded platform SM2 encryption algorithm comprises the following steps: 1) acquiring an open source encryption library; 2) extracting an API (application programming interface) function of the SM2 encryption algorithm from the open source encryption library; 3) ...
importjava.security.*;importjava.security.spec.InvalidKeySpecException;importjava.security.spec.X509EncodedKeySpec;publicclassSM2Encryption{publicstaticvoidmain(String[]args)throwsNoSuchProviderException,NoSuchAlgorithmException,InvalidAlgorithmParameterException,InvalidKeyException,InvalidCipherTextException{Stringplain...
DES(Data Encryption Standard)算法是一种对称加密算法,于 1972 年由美国 IBM 公司研制而成。DES 算法的密钥长度为56 位,加密过程中将明文分成 32 位一组,共分 64 组,然后使用密钥进行加密。DES 算法的安全性在一定程度上受到了量子计算和大数据技术的冲击,因为它的密钥长度较短,容易被暴力破解。
import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; import java.util.Base64; import org.bouncycastle.asn1.gm.GMNamedCurves; import org.bouncycastle.asn1.x9.X9ECParameters; import org.bouncycastle.crypto.AsymmetricCipherKeyPair; ...
curveLength=(ecParams.getCurve().getFieldSize()+7)/8;}publicbyte[]processBlock(byte[]in,intinOff,intinLen)throwsInvalidCipherTextException{if(forEncryption){returnencrypt(in,inOff,inLen);}else{returndecrypt(in,inOff,inLen);}}publicintgetOutputSize(intinputLen){return(1+2*curveLength)+...
step1: message encryption: $ python app.py en c1c3c2 please input the receiver's public key x (hex with '0x' prefix): 0x9422d67f6a13fd62e1adf22207b3a99f5e6051d1c2d981b32f7d0de7672a1b18 please input the receiver's public key y (hex with '0x' prefix): 0xebfe7dc7df13845fd9dfbb...