Examples with SM2 cn.hutool.crypto.asymmetric.SM2 used on opensource projects

Example 1 with SM2

use of cn.hutool.crypto.asymmetric.SM2 in project hutool by looly.

the class PemUtilTest method readECPrivateKeyTest2.

@Test
@Ignore
public void readECPrivateKeyTest2() {
    // https://gitee.com/loolly/hutool/issues/I37Z75
    byte[] d = PemUtil.readPem(FileUtil.getInputStream("d:/test/keys/priv.key"));
    byte[] publicKey = PemUtil.readPem(FileUtil.getInputStream("d:/test/keys/pub.key"));
    SM2 sm2 = new SM2(d, publicKey);
    sm2.usePlainEncoding();
    String content = "我是Hanley.";
    byte[] sign = sm2.sign(StrUtil.utf8Bytes(content));
    boolean verify = sm2.verify(StrUtil.utf8Bytes(content), sign);
    Assert.assertTrue(verify);
}

Example 2 with SM2

use of cn.hutool.crypto.asymmetric.SM2 in project hutool by looly.

the class PemUtilTest method readECPrivateKeyTest.

@Test
public void readECPrivateKeyTest() {
    PrivateKey privateKey = PemUtil.readSm2PemPrivateKey(ResourceUtil.getStream("test_ec_private_key.pem"));
    SM2 sm2 = new SM2(privateKey, null);
    sm2.usePlainEncoding();
    // 需要签名的明文,得到明文对应的字节数组
    byte[] dataBytes = "我是一段测试aaaa".getBytes(StandardCharsets.UTF_8);
    byte[] sign = sm2.sign(dataBytes, null);
    // 64位签名
    Assert.assertEquals(64, sign.length);
}

Example 3 with SM2

use of cn.hutool.crypto.asymmetric.SM2 in project hutool by looly.

the class SM2Test method sm2SignAndVerifyUseKeyTest2.

@Test
public void sm2SignAndVerifyUseKeyTest2() {
    String content = "我是Hanley.";
    KeyPair pair = SecureUtil.generateKeyPair("SM2");
    final SM2 sm2 = new // 
    SM2(// 
    HexUtil.encodeHexStr(pair.getPrivate().getEncoded()), // 
    HexUtil.encodeHexStr(pair.getPublic().getEncoded()));
    byte[] sign = sm2.sign(content.getBytes(StandardCharsets.UTF_8));
    boolean verify = sm2.verify(content.getBytes(StandardCharsets.UTF_8), sign);
    Assert.assertTrue(verify);
}

Example 4 with SM2

use of cn.hutool.crypto.asymmetric.SM2 in project hutool by looly.

the class SM2Test method sm2SignTest.

@Test
public void sm2SignTest() {
    // 需要签名的明文,得到明文对应的字节数组
    byte[] dataBytes = "我是一段测试aaaa".getBytes(StandardCharsets.UTF_8);
    // 指定的私钥
    String privateKeyHex = "1ebf8b341c695ee456fd1a41b82645724bc25d79935437d30e7e4b0a554baa5e";
    final SM2 sm2 = new SM2(privateKeyHex, null, null);
    sm2.usePlainEncoding();
    byte[] sign = sm2.sign(dataBytes, null);
    // 64位签名
    Assert.assertEquals(64, sign.length);
}

Example 5 with SM2

use of cn.hutool.crypto.asymmetric.SM2 in project hutool by looly.

the class SM2Test method sm2Base64Test.

@Test
public void sm2Base64Test() {
    String textBase = "我是一段特别长的测试";
    StringBuilder text = new StringBuilder();
    for (int i = 0; i < 100; i++) {
        text.append(textBase);
    }
    SM2 sm2 = new SM2();
    // 公钥加密，私钥解密
    String encryptStr = sm2.encryptBase64(text.toString(), KeyType.PublicKey);
    String decryptStr = StrUtil.utf8Str(sm2.decrypt(encryptStr, KeyType.PrivateKey));
    Assert.assertEquals(text.toString(), decryptStr);
    // 测试自定义密钥后是否生效
    PrivateKey privateKey = sm2.getPrivateKey();
    PublicKey publicKey = sm2.getPublicKey();
    sm2 = SmUtil.sm2();
    sm2.setPrivateKey(privateKey);
    sm2.setPublicKey(publicKey);
    String decryptStr2 = StrUtil.utf8Str(sm2.decrypt(encryptStr, KeyType.PrivateKey));
    Assert.assertEquals(text.toString(), decryptStr2);
}