DataFlex

Simple AES ECB Decryption

See more Encryption Examples

Decrypt 256-bit encrypted content. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoCrypt
    String sCt
    String sKey
    String sPt

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatCrypt2)) To hoCrypt
    If (Not(IsComObjectCreated(hoCrypt))) Begin
        Send CreateComObject of hoCrypt
    End

    // Encrypted content (base64-encoded)
    Move "d/95VziAnUNKkpXr3dJBFcQqAEDWlDkc7EU2jLkYPxmr6PpLRJlgHos+/Uy28CvJsmztQ3JkJAMukVoj46QJ/7RMuqLb31cSKd1ZvMzx9J9b6q0EkmPJcSfBhf2x7v5Qvq3lz1EIH7RM61cDGf+g9p4lt6FtU2MzCqtYD+Vr29voCn5WU1CnXmks64RrbyDA1DDHOx2deJ4Kn68+KoPM9tAw9kbf4HApL1nJYU3Mfzl+MnuHuB2kJpL5GqbuNvS+4QjxuwtNGuZEEY0gOS4RIvWl/XfkxtWHMkzsKy08AO792xDGer4rL4Q1NcfI/H2V" To sCt

    // 256-bit AES key (literally the 32 us-ascii bytes of this string)
    Move "sQsPQYesBM5qEM5OSxicFatIiLM459Bu" To sKey

    // Note: If your AES key is a string, and it's not clearly hex or base64, AND if the length of the string is the exact size of the AES key,
    // then *literally* use the ascii chars as the AES key.

    Set ComCryptAlgorithm Of hoCrypt To "aes"
    Set ComCipherMode Of hoCrypt To "ecb"
    Set ComKeyLength Of hoCrypt To 256
    // use the exact ascii bytes as the key.
    Send ComSetEncodedKey To hoCrypt sKey "ascii"
    Set ComEncodingMode Of hoCrypt To "base64"

    Get ComDecryptStringENC Of hoCrypt sCt To sPt

    Showln sPt


End_Procedure