//生成公钥对KeyPair pair = SecureUtil.generateKeyPair("SM2");//私钥String privateKeyStr = Base64.getEncoder().encodeToString(pair.getPrivate().getEncoded());//公钥String publicKeyStr =Base64.getEncoder().encodeToString(pair.getPublic().getEncoded());System.out.println("私钥 "+privateKeyStr);System.out.println("公钥 "+publicKeyStr);//私钥 MIGTAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBHkwdwIBAQQgmm2JbLLoT7MZ7ogoCi/afBsdAal48g8ZI6NQd4dtFzCgCgYIKoEcz1UBgi2hRANCAARgoWxOT60TAXdafBdJQqiqqsqNL04S77dmnEEjl96odmcq8tEpZIcm9893Whk89J2Cr5H9G2v3N2fAGi15v0C4//公钥 MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEYKFsTk+tEwF3WnwXSUKoqqrKjS9OEu+3ZpxBI5feqHZnKvLRKWSHJvfPd1oZPPSdgq+R/Rtr9zdnwBoteb9AuA==//私钥签名String content = "我是大鹏";SM2 sm2 = SmUtil.sm2(privateKeyStr,null);String sign = sm2.signHex(HexUtil.encodeHexStr(content));//公钥验签SM2 sm2PublicKeyStr = SmUtil.sm2(null,publicKeyStr);// trueboolean verify = sm2PublicKeyStr.verifyHex(HexUtil.encodeHexStr(content), sign);//公钥加密// 公钥加密，私钥解密SM2 sm2publicKeyStr = SmUtil.sm2(null, publicKeyStr);String encryptStr = sm2publicKeyStr.encryptBcd(content, KeyType.PublicKey);//私钥解密SM2 sm2privateKeyStr = SmUtil.sm2(privateKeyStr, null);String decryptStr = StrUtil.utf8Str(sm2privateKeyStr.decryptFromBcd(encryptStr, KeyType.PrivateKey));