Java验证签名C#等价
我试图找到与此Java代码等效的代码:Java验证签名C#等价,c#,rsa,C#,Rsa,我试图找到与此Java代码等效的代码: public String signData(String data, String privateKey) { try { byte[] bytes = data.getBytes("UTF8"); PKCS8EncodedKeySpec prKeySpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKey)); PrivateKey
public String signData(String data, String privateKey) {
try {
byte[] bytes = data.getBytes("UTF8");
PKCS8EncodedKeySpec prKeySpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKey));
PrivateKey prKey = KeyFactory.getInstance("RSA").generatePrivate(prKeySpec);
Signature sig = Signature.getInstance("SHA512withRSA");
sig.initSign(prKey);
sig.update(bytes);
byte[] signatureBytes = sig.sign();
return new String(Base64.encodeBase64(signatureBytes));
} catch (Exception ex) {
}
return null;
}
及
这个代码似乎不起作用。
也许我错过了什么。
我找到了几个类似的帖子,但还没有找到答案
public String signData(String data, String privateKey)
{
byte[] bytes = Encoding.UTF8.GetBytes(data);
var rsa = RSA.Create();
rsa.ImportPkcs8PrivateKey(Convert.FromBase64String(privateKey), out _);
byte[] signedData = rsa.SignData(bytes, HashAlgorithmName.SHA512, RSASignaturePadding.Pkcs1);
return Convert.ToBase64String(signedData);
}
public bool validateSignature(String data, String publicKey, String signature)
{
var bytes = Convert.FromBase64String(publicKey);
var rsa = RSA.Create();
rsa.ImportSubjectPublicKeyInfo(bytes, out _);
var rsaParams = rsa.ExportParameters(false);
return rsa.VerifyHash(Encoding.UTF8.GetBytes(data), Convert.FromBase64String(signature), HashAlgorithmName.SHA512, RSASignaturePadding.Pkcs1);
}
这让我震惊)我希望有人能回答)
谢谢问题出在validateSignature方法中,您在该方法中调用
VerifyHash()
来验证签名。第一个参数的名称是rgbHash
,它的名称是:
参数
rgbHash字节[]
签名数据的哈希值
此方法用于验证已计算哈希的签名,但您正试图通过提供数据本身来验证签名,因此将VerifyHash()调用更改为VerifyData()应该可以实现以下目的:
public static bool validateSignature(String data, String publicKey, String signature)
{
var bytes = Convert.FromBase64String(publicKey);
var rsa = RSA.Create();
rsa.ImportSubjectPublicKeyInfo(bytes, out _);
// Not used in the provided code.
// var rsaParams = rsa.ExportParameters(false);
return rsa.VerifyData(Encoding.UTF8.GetBytes(data), Convert.FromBase64String(signature), HashAlgorithmName.SHA512, RSASignaturePadding.Pkcs1);
}
…此代码似乎不起作用。。。请提供更多细节。“它不起作用”是没有帮助的。
public static bool validateSignature(String data, String publicKey, String signature)
{
var bytes = Convert.FromBase64String(publicKey);
var rsa = RSA.Create();
rsa.ImportSubjectPublicKeyInfo(bytes, out _);
// Not used in the provided code.
// var rsaParams = rsa.ExportParameters(false);
return rsa.VerifyData(Encoding.UTF8.GetBytes(data), Convert.FromBase64String(signature), HashAlgorithmName.SHA512, RSASignaturePadding.Pkcs1);
}