3DES Test Vector

Example for 3-key 3DES encryption (192-bit) to match a test vector produced by both (non-Chilkat) PHP code and C# code using the .NET Framework.

PHP code to produce identical output: PHP 3DES Test Vector

C# code to produce identical output: C# 3DES Test Vector

Download Chilkat Crypt ActiveX

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    EXEC sp_OAMethod @crypt, 'UnlockComponent', @success OUT, 'Anything for 30-day trial.'
    IF @success <> 1
      BEGIN
        PRINT 'Crypt component unlock failed'
        RETURN
      END

    --  Specify 3DES for the encryption algorithm:
    EXEC sp_OASetProperty @crypt, 'CryptAlgorithm', '3des'

    EXEC sp_OASetProperty @crypt, 'CipherMode', 'ecb'

    --  KeyLength must be 192.  3DES is technically 168-bits;
    --  the most-significant bit of each key byte is a parity bit,
    --  so we must indicate a KeyLength of 192, which includes
    --  the parity bits.
    EXEC sp_OASetProperty @crypt, 'KeyLength', 192

    --  Pad with zeros
    EXEC sp_OASetProperty @crypt, 'PaddingScheme', 3

    --  EncodingMode specifies the encoding of the output for
    --  encryption, and the input for decryption.
    --  It may be "hex", "url", "base64", or "quoted-printable".
    EXEC sp_OASetProperty @crypt, 'EncodingMode', 'hex'

    --  The secret key must equal the size of the key.  For
    --  3DES, the key must be 24 bytes (i.e. 192-bits).
    DECLARE @keyAscii nvarchar(4000)

    SELECT @keyAscii = '1234567890123456ABCDEFGH'
    EXEC sp_OAMethod @crypt, 'SetEncodedKey', NULL, @keyAscii, 'ascii'

    --  Encrypt.
    --  The result should be:
    --  13d4d3549493d2870f93c3e0812a06de467e1f9c0bfb16c070ede5cabbd3ca62f217a7ae8d47f2c7bf62eb309323b58b
    DECLARE @encStr nvarchar(4000)

    EXEC sp_OAMethod @crypt, 'EncryptStringENC', @encStr OUT, 'The quick brown fox jumped over the lazy dog'
    PRINT @encStr

    --  Now decrypt:
    DECLARE @decStr nvarchar(4000)

    EXEC sp_OAMethod @crypt, 'DecryptStringENC', @decStr OUT, @encStr
    PRINT @decStr

END
GO