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rsa
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  • homoon
    started a topic OPENSSL RSA Public Encryption
    in C

    OPENSSL RSA Public Encryption

    Hi all,

    I can't get the expected result in this RSA function, is there any mistake? Many thanks!!!!!!:

    Code:
    char* RSAEN2()
{
    int ret, flen;
    BIGNUM *bnn, *bne, *bnd,*mods, *pub_exp;
    unsigned char *in = "01019D45855EF1686D61A8D9CB54C854A794E68F7A0B2923FBD0";
    unsigned char *out;
    
    bnn = BN_new();
    bne = BN_new();
   //
    ...
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    • Sean Len
      started a topic MD5 with RSA
      in Visual Basic .NET

      MD5 with RSA

      Hi all, I currently working on a project that need to perform a security hashing that involve both MD5 and RSA.
      MD5 hashing is easy to implement. But I have no idea on how RSA works. I perform some research online and I notice most RSA involve Public and Private Keys to perform signing.

      Do any1 have experience on this kind of hash method?
      Any sample code can provided in order for me to get a better understanding?
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      • boyindie86
        started a topic RSA Software protection
        in .NET

        RSA Software protection

        I am trying to write a protection procedure, which will allow me to create a licence key for our users. This licence key will ensure that the software can only run on the registered system, and will allow the user to access only specific areas of my program which is relevant to them.

        I am thinking of using an RSA style approach to this where I want to be the only person who can create the registration keys. But I want to allow the program...
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        • jiee
          started a topic Python RSA implementation with PKCS1
          in Python

          Python RSA implementation with PKCS1

          I'm working on this Python package for RSA implementation <link removed>,However,It only gives a RSA implementation without PKCS1 padding.

          I'm now trying to improve the code snippets for PKCS1 padding. I followed the RFC2313 http://www.faqs.org/rfcs/rfc2313.html and get a list object like this:

          Code:
          m = [0,2,random integers,0, integers]
          According to RFC2313, the list above is to be transformed into "an...
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          Last edited by Frinavale; Apr 15 '10, 07:50 PM. Reason: Removed link.
          • jiee
            started a topic RSA encryption with PKCS1 in Python
            in Python

            RSA encryption with PKCS1 in Python

            There is a javascript RSA implemention available here:http://www-cs-students.stanford.edu/~tjw/jsbn/
            I'm working on RSA encryption with PKCS1 using Python to get the similar results of the javascript implemention.
            I have used the rsa implemention packgage for pythonhttp://stuvel.eu/rsa, however, the implemention seems not to support the PKCS1 alogrithm.

            I'm also checked other rsa implemention for python, but seems no...
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            • westwolf2010
              started a topic Trouble decoding text using RSA and bouncy castle libraries
              in C Sharp

              Trouble decoding text using RSA and bouncy castle libraries

              The code segment below is in VB.net and referencing C# Bouncy Castle libraries. I get the same results when the VB code is in C#. Exact same Console output of EncryptKey and exact same "incorrect block type" exception with DecryptKey, so I don't think the language here should matter too much. The test.KEY file is a private key file we're using.

              Code:
              Sub Main()
    Dim input As String
    Dim output As String
              ...
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