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我正在尝试将以下 Java 代码转换为 python,但我不确定如何执行此操作:

import java.security.spec.X509EncodedKeySpec;
import java.security.KeyFactory;
import java.security.PublicKey;
import java.security.Signature;

byte[] key = KeyReader.read(filestream) 
  //KeyReader.read(inputstream) just reads in the bytes 1 at a time from the filestream
X509EncodedKeySpec pubKey = new X509EncodedKeySpec(key);
KeyFactory keyFactory = KeyFactory.getInstance("DSA");

PublicKey pub = keyFactory.generatePublic(pubKey);

Signature signature = Signature.getInstance("SHA1withDSA");
signature.initVerify(pub)
signature.update(a_byte_string) //doesn't matter

我对如何在 python 中做到这一点有点迷茫。具体来说,SHA1withDSA 部分。我只是对 python 加密库(确切地说是 m2crypto)不够了解来映射函数(我也找不到任何关于如何做到这一点的体面的文章)。

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1 回答 1

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我不完全理解 Java 代码,但这是你想要做的吗?

from M2Crypto import X509

x509 = X509.load_cert(filename)
assert x509.verify() == 1
于 2009-09-17T23:33:45.633 回答