前端纯js加密、以及后端java解密代码 js 实现国密sm2、sm3、sm4 加密解密demo

package com.guomi; import org.apache.commons.lang3.StringUtils; import com.antherd.smcrypto.sm2.Keypair; import com.antherd.smcrypto.sm2.Sm2; public class SM2Encryptor { /** * 加密，使用公钥 * * @param publicKey * @param originalText * @return */ public static String encryptText(String publicKey, String originalText) throws Exception { if (StringUtils.isNotEmpty(publicKey)) { throw new Exception("密钥不能为空..."); } if (StringUtils.isNotEmpty(originalText)) { throw new Exception("明文不能为空..."); } try { return Sm2.doEncrypt(originalText, publicKey);//HexUtil.encodeHexStr(cipherText); // 加密结果 } catch (Exception e) { throw new Exception("加密错误：密钥不正确..."); } } /** * 解密，使用私钥 * * @param privateKey * @param cipherText * @return */ public static String decryptText(String privateKey, String cipherText) throws Exception { if (StringUtils.isNotEmpty(privateKey)) { throw new Exception("密钥不能为空..."); } if (StringUtils.isNotEmpty(cipherText)) { throw new Exception("明文不能为空..."); } try { return Sm2.doDecrypt(cipherText, privateKey); // new String(sm2.decrypt(sourceData,prvKey)); // 解密结果 } catch (Exception e) { throw new Exception("解密错误：密钥不正确..."); } } /** * 获取sm2密钥对， * * @return 返回String[]；第0个为公钥，第1个为私钥 * @throws Exception */ public static String[] generateKeyPair() throws Exception { try { Keypair keypair = Sm2.generateKeyPairHex(); String[] result = new String[2]; if (keypair != null) { result[0] = keypair.getPublicKey(); //公钥 result[1] = keypair.getPrivateKey(); // 私钥 } return result; } catch (Exception e) { throw new Exception("生成密钥对失败..."); } } public static void main(String[] args) throws Exception { //生成一对 公钥与私钥 String[] keys = generateKeyPair(); //公钥 String publicKey = keys[0]; System.out.println("公钥" + publicKey); //私钥 String privateKey = keys[1]; System.out.println("私钥" + privateKey); String str = "测试使用SM2加密、解密"; //加密字符串 String encryptText = SM2Encryptor.encryptText(publicKey, str); System.out.println(encryptText); //解密字符串 String decryptText = SM2Encryptor.decryptText(privateKey, encryptText); System.out.println(decryptText); } }