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SM2解密时，兼容GmSSL非压缩省略的04头的密文

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Looly
2024-09-05 13:23:47 +08:00
parent 1805018bd0
commit 2b30b8df24
4 changed files with 37 additions and 2 deletions
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13
hutool-crypto/src/test/java/cn/hutool/crypto/asymmetric/SM2Test.java
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@@ -347,4 +347,17 @@ public class SM2Test {
sm2.encryptHex(emptyStr, KeyType.PublicKey);
});
}
@Test
void decryptFromGmSSLTest() {
// https://the-x.cn/zh-cn/cryptography/Sm2.aspx
// python gmssl加密后的内容无04标识，检查并补充
String privateKey = "MHcCAQEEICxTSOhWA4oYj2DI95zunPqHHEKZSi5QFLvWz57BfIGVoAoGCCqBHM9VAYItoUQDQgAEIGRS/PssvgZ8Paw2YeFaW4VXrkgceBELKPWcXmq/p3iMhHxYfcaFAa5AzvPJOmYmVzVwu9QygMMrg/30Ok1npw==";
final SM2 sm2 = new SM2(privateKey, null);
sm2.setMode(SM2Engine.Mode.C1C2C3);
String encrypt = "x0KA1DKkmuA/YZdmvMr8X+1ZQb7a19Pr5nSxxe2ItUYpDAioa263tm9u7vST38hAEUoOxxXftD+7bRQ7Y8v1tcFXeheKodetA6LrPIuh0QYZMdBqIKSKdmlGeVE0Vdm3excisbtC";
final byte[] decrypt = sm2.decrypt(encrypt, KeyType.PrivateKey);
assertEquals("123456", StrUtil.utf8Str(decrypt));
}
}