AES (Rijndael) Encryption with CryptoAPI

From: Abe Simpson (abe_at_simpson.com)
Date: 06/25/04

  • Next message: Brandon Swamy: "Retrieving Logon Date and Time" 
    Date: Thu, 24 Jun 2004 18:04:48 -0400

    Hi all,

    I have managed to get CryptoAPI on XP to work with AES (Rijndael) via the
    contstants CALG_AES_128, CALG_AES_192 and CALG_AES_256. However I can't seem
    to be able to verify the correctness of encryption.

    When I encrypt plaintext that is 1 to 15 bytes long, the resultant
    ciphertext is always 16 bytes, and a 16-byte plaintext results in a 32-byte
    cipher text.

    Rijndael specs provide sample results where 16-byte plaintext becomes
    16-byte ciphertext. How do I achieve the same result?

    Thanks in advance.

    Abe

  • Next message: Brandon Swamy: "Retrieving Logon Date and Time"

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