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AES encryption action of a 12 byte string is resulting in very large output

  • 1.  AES encryption action of a 12 byte string is resulting in very large output

    Posted May 20, 2015 03:20 PM

    Hello community,

     

    we try to use the AES encryption with a given password and salt. The plain text has a length of 12 bytes and the result of the decryption has around 45000 bytes.
    Normally if I'm implementing and using encryption (DES or AES) the decrypted value is just a bit longer (it depends on the block size and filling mode) than the plaintext length.

     

    The result is much too large for a simple 12 character encryption with standard DES or AES. Any ideas why the result is getting that big. This way we're not able to exchange encrypted values with external systems.

    Thank you for helping out
    Ralf



  • 2.  Re: AES encryption action of a 12 byte string is resulting in very large output

    Posted Jun 03, 2015 03:33 PM

    Does anyone have any feedback for Ralf?

     

    Thanks

     

    AES encryption action of a 12 byte string is resulting in very large output

     

    Ralf Huettl May 20, 2015 3:20 PM

    Hello community,

     

    we try to use the AES encryption with a given password and salt. The plain text has a length of 12 bytes and the result of the decryption has around 45000 bytes.
    Normally if I'm implementing and using encryption (DES or AES) the decrypted value is just a bit longer (it depends on the block size and filling mode) than the plaintext length.

     

    The result is much too large for a simple 12 character encryption with standard DES or AES. Any ideas why the result is getting that big. This way we're not able to exchange encrypted values with external systems.

    Thank you for helping out
    Ralf