使用C＃和Java的RSA加密 [英] Using RSA encryption with C# and Java

问题描述

嘿伙计们，


我一直在努力尝试使用RSA加密Java中的数据，而b / b $ b解密C＃中的数据。我已经能够使用

makecert创建X.509证书，并使用WSE在C＃中成功访问它。从

certmgr作为CER导出后，我可以使用keytool在Java中使用它。


我的问题是，我根本无法解密Java加密消息C＃。

如果我用C＃加密和解密，一切都很好。我注意到的一件事是

，C＃报告的模数与Java或openssl的模数不匹配

（匹配）。


有没有人在Java和C＃之间成功使用过RSA？如果是这样，我会很感激

关于我可能出错的地方的任何提示。


谢谢，

布莱恩

解决方案

" Bryan" <再***** @ thegroups.please>在消息中写道

有没有人在Java和C＃之间成功使用过RSA？如果是这样，我会
感谢任何关于我可能出错的提示。

这可能是一个字节序问题。尝试反转加密的字节，然后再将它们提供给RSACryptoServiceProvider [Array.Reverse可以帮助你

]。


此致，

Pieter Philippaerts

托管SSL / TLS： http://www.mentalis.org/go.php?sl

我试过反转字节，但我仍然当我尝试解密时，得到一个不好的
数据的CryptographicException。


我是用Java编码加密值的Base64编码并用C＃解码它解密前
。当我打印出来时模数不匹配意味着

什么？或者.NET内部是否做了什么？


谢谢，

布莱恩

" Pieter Philippaerts" <裨**** @ nospam.mentalis.org>在消息中写道

news：ut ************** @ TK2MSFTNGP12.phx.gbl ...

" Bryan" <再***** @ thegroups.please>在消息中写道

有没有人在Java和C＃之间成功使用过RSA？如果是这样，我会

欣赏

关于我可能出错的任何提示。

它可以是一个端序问题。尝试反转加密的字节，然后将它们提供给RSACryptoServiceProvider [Array.Reverse可以帮助你


问候，
Pieter Philippaerts
托管SSL / TLS： http://www.mentalis.org/go.php ？sl

" blah" < BL ** @ blah.blah>在消息中写道

我试图反转字节，但是当我尝试解密时，我仍然得到
坏数据的CryptographicException。

你能发布你正在使用的代码吗？ [C＃和Java]


问候，

Pieter Philippaerts

托管SSL / TLS： http://www.mentalis.org/go.php?sl

Hey guys,

I''ve been fighting with trying to use RSA to encrypt data in Java and
decrypt the data in C#. I''ve been able to create an X.509 certificate using
makecert and successfully access it in C# using WSE. After exporting from
certmgr as a CER, I can use it in Java using keytool.

My problem is, I simply cannot decrypt the Java encrypted messages in C#.
If I encrypt and decrypt in C#, everything is fine. One thing I noticed is
that the modulus reported by C# does not match that of Java or openssl
(which do match).

Has anyone successfully used RSA between Java and C#? If so, I''d appreciate
any tips on where I may be going wrong.

Thanks,
Bryan

解决方案

"Bryan" <re*****@thegroups.please> wrote in message

Has anyone successfully used RSA between Java and C#? If so, I''d appreciate any tips on where I may be going wrong.

It can be an endian problem. Try reversing the encrypted bytes before
feeding them to the RSACryptoServiceProvider [Array.Reverse can help you
with that].

Regards,
Pieter Philippaerts
Managed SSL/TLS: http://www.mentalis.org/go.php?sl

I tried reversing the bytes, but I still get a CryptographicException of bad
data when I try to decrypt.

I am Base64 encoding the encrypted value in Java and decoding it in C#
before decrypting. Does the modulus not matching when I print it out mean
anything? Or does .NET do something to it internally?

Thanks,
Bryan
"Pieter Philippaerts" <Pi****@nospam.mentalis.org> wrote in message
news:ut**************@TK2MSFTNGP12.phx.gbl...

"Bryan" <re*****@thegroups.please> wrote in message

Has anyone successfully used RSA between Java and C#? If so, I''d

appreciate

any tips on where I may be going wrong.

It can be an endian problem. Try reversing the encrypted bytes before
feeding them to the RSACryptoServiceProvider [Array.Reverse can help you
with that].

Regards,
Pieter Philippaerts
Managed SSL/TLS: http://www.mentalis.org/go.php?sl

"blah" <bl**@blah.blah> wrote in message

I tried reversing the bytes, but I still get a CryptographicException of bad data when I try to decrypt.

Can you post the code you''re using? [both C# and Java]

Regards,
Pieter Philippaerts
Managed SSL/TLS: http://www.mentalis.org/go.php?sl

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