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分享用公钥解密RSA
公钥:11234d300d06092a864886f70d010101050003818b0030818702818100a3dc132169d3a3f0a3df4f7014d7c741ff6da7322b82d70f3ecdce16fac6349c8dfc63b1061fa11f8285d9afe6aa4f7ce01f645c9e0db3361d9ff9f165d23591f1f5e57833df4dcbd6ce7582208e8021d41a534ff0b5a5ed90d2642c51532668e3c90696c26c43b52cd4ec733c57b2fa4ca9ba03b606153e0aac01f9d1c3e523123243
签名:
4b3ef029516193b7d969ac1840083635a3e0901b8cd526caa44c1a072f496d7f0d4bca3942c0d9030bede37c7809b835cec787eb39e18b7596a724fba9805b24714dfbb0f4a3fb430b32e075254a114d4c38a0ac52ef46a0ad33dec3fbfc15417402a1399e65e46996c0cf49fc7ffca9222f8cd693c8376b6f928828967bec42
请问如何恢复签名以前的内容:
签名:
4b3ef029516193b7d969ac1840083635a3e0901b8cd526caa44c1a072f496d7f0d4bca3942c0d9030bede37c7809b835cec787eb39e18b7596a724fba9805b24714dfbb0f4a3fb430b32e075254a114d4c38a0ac52ef46a0ad33dec3fbfc15417402a1399e65e46996c0cf49fc7ffca9222f8cd693c8376b6f928828967bec42
请问如何恢复签名以前的内容:
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endstar520 2006-04-13
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Kaile 2005-08-10
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tigerwen01 2005-07-12
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System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
RSAParameters PublicKey = new RSAParameters(rsa);
RSAParameters PublicKey = new RSAParameters(rsa);
yxandyx 2005-07-12
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顶!
yxandyx 2005-07-12
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顶!
yxandyx 2005-07-11
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我写的方法如下:
public string RSADecrypt(string KEY, string m_strDecryptString )
{
try
{
byte[] PlainTextBArray;
byte[] DypherTextBArray;
string Result;
System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
RSAParameters PublicKey = new RSAParameters();
PublicKey.Exponent = new byte[]{1,0,1};
PublicKey.Modulus =Convert.FromBase64String(KEY);
rsa.ImportParameters(PublicKey);
PlainTextBArray =Convert.FromBase64String(m_strDecryptString);
DypherTextBArray=rsa.Decrypt(PlainTextBArray, false);
Result=(new UnicodeEncoding()).GetString(DypherTextBArray);
return Result;
}
catch(Exception ex)
{
Response.Write(ex.Message);
}
return "";
}
==================================================================
调用:
string key="11234d300d06092a864886f70d010101050003818b0030818702818100a3dc132169d3a3f0a3df4f7014d7c741ff6da7322b82d70f3ecdce16fac6349c8dfc63b1061fa11f8285d9afe6aa4f7ce01f645c9e0db3361d9ff9f165d23591f1f5e57833df4dcbd6ce7582208e8021d41a534ff0b5a5ed90d2642c51532668e3c90696c26c43b52cd4ec733c57b2fa4ca9ba03b606153e0aac01f9d1c3e523123243";
string data="4b3ef029516193b7d969ac1840083635a3e0901b8cd526caa44c1a072f496d7f0d4bca3942c0d9030bede37c7809b835cec787eb39e18b7596a724fba9805b24714dfbb0f4a3fb430b32e075254a114d4c38a0ac52ef46a0ad33dec3fbfc15417402a1399e65e46996c0cf49fc7ffca9222f8cd693c8376b6f928828967bec42";
RSADecrypt(key,data);
出现错误提示:"不正确的项"
请大家帮忙分析一下.谢谢了
public string RSADecrypt(string KEY, string m_strDecryptString )
{
try
{
byte[] PlainTextBArray;
byte[] DypherTextBArray;
string Result;
System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider();
RSAParameters PublicKey = new RSAParameters();
PublicKey.Exponent = new byte[]{1,0,1};
PublicKey.Modulus =Convert.FromBase64String(KEY);
rsa.ImportParameters(PublicKey);
PlainTextBArray =Convert.FromBase64String(m_strDecryptString);
DypherTextBArray=rsa.Decrypt(PlainTextBArray, false);
Result=(new UnicodeEncoding()).GetString(DypherTextBArray);
return Result;
}
catch(Exception ex)
{
Response.Write(ex.Message);
}
return "";
}
==================================================================
调用:
string key="11234d300d06092a864886f70d010101050003818b0030818702818100a3dc132169d3a3f0a3df4f7014d7c741ff6da7322b82d70f3ecdce16fac6349c8dfc63b1061fa11f8285d9afe6aa4f7ce01f645c9e0db3361d9ff9f165d23591f1f5e57833df4dcbd6ce7582208e8021d41a534ff0b5a5ed90d2642c51532668e3c90696c26c43b52cd4ec733c57b2fa4ca9ba03b606153e0aac01f9d1c3e523123243";
string data="4b3ef029516193b7d969ac1840083635a3e0901b8cd526caa44c1a072f496d7f0d4bca3942c0d9030bede37c7809b835cec787eb39e18b7596a724fba9805b24714dfbb0f4a3fb430b32e075254a114d4c38a0ac52ef46a0ad33dec3fbfc15417402a1399e65e46996c0cf49fc7ffca9222f8cd693c8376b6f928828967bec42";
RSADecrypt(key,data);
出现错误提示:"不正确的项"
请大家帮忙分析一下.谢谢了
