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  4. Rijndael Encryption Question..

Rijndael Encryption Question..

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  • D Offline
    D Offline
    Dio22
    wrote on last edited by
    #1

    I'm trying to read in and decrypt some encrypted data that is written to a file by an outside program. The program uses a form of rijndael encryption to encrypt the file. It uses a key, and I have the key, but I don't think it uses an initialization vector .. this is what it uses: // key - The 128/192/256-bit user-key to use. // chain - initial chain block for CBC and CFB modes. // keylength - 16, 24 or 32 bytes // blockSize - The block size in bytes of this Rijndael (16, 24 or 32 bytes). I'm not real solid on how Rijndael encryption works, obviously, so if anyone could help steer me in the right direction, that would help.

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    • D Dio22

      I'm trying to read in and decrypt some encrypted data that is written to a file by an outside program. The program uses a form of rijndael encryption to encrypt the file. It uses a key, and I have the key, but I don't think it uses an initialization vector .. this is what it uses: // key - The 128/192/256-bit user-key to use. // chain - initial chain block for CBC and CFB modes. // keylength - 16, 24 or 32 bytes // blockSize - The block size in bytes of this Rijndael (16, 24 or 32 bytes). I'm not real solid on how Rijndael encryption works, obviously, so if anyone could help steer me in the right direction, that would help.

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      A Offline
      Alaric_
      wrote on last edited by
      #2

      Rijndael is just another name for AES encryption(as it was the technique chosen for the standard). I would start by reading up on AES. ...Start with the sci.crypt newsgroup

      "I need build Skynet. Plz send code"

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      • D Dio22

        I'm trying to read in and decrypt some encrypted data that is written to a file by an outside program. The program uses a form of rijndael encryption to encrypt the file. It uses a key, and I have the key, but I don't think it uses an initialization vector .. this is what it uses: // key - The 128/192/256-bit user-key to use. // chain - initial chain block for CBC and CFB modes. // keylength - 16, 24 or 32 bytes // blockSize - The block size in bytes of this Rijndael (16, 24 or 32 bytes). I'm not real solid on how Rijndael encryption works, obviously, so if anyone could help steer me in the right direction, that would help.

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        X Offline
        xfitr2
        wrote on last edited by
        #3

        I found this article very useful when I had to write an encryption program for my company. http://www.developerfusion.co.uk/show/4647/4/[^]

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