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(Visual FoxPro) Blowfish Encryption to Match PHP's Mcrypt Extension

Demonstrates how to match Blowfish encryption results with PHP's mcrypt extension.

Please refer to this PHP (non-Chilkat) example for PHP Blowfish Encryption. The code here matches the PHP mcrypt results on that web page.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL loCrypt
LOCAL lcIvAscii
LOCAL lcKeyAscii
LOCAL lcPlainText
LOCAL lcCipherText

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

loCrypt = CreateObject('Chilkat_9_5_0.Crypt2')

* Use "blowfish2" to get proper results:
loCrypt.CryptAlgorithm = "blowfish2"

* CipherMode may be "ecb" or "cbc"
loCrypt.CipherMode = "cbc"

* KeyLength (in bits) may be a number between 32 and 448.
* 128-bits is usually sufficient.  The KeyLength must be a 
* multiple of 8.
loCrypt.KeyLength = 256

* Pad with NULL bytes (PHP pads with NULL bytes)
loCrypt.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".
loCrypt.EncodingMode = "hex"

* The blowfish algorithm uses a 64-bit block size, 
* therefore the IV must be 8 bytes:
lcIvAscii = "12345678"
loCrypt.SetEncodedIV(lcIvAscii,"ascii")

* For 256-bit encryption, the key is 32 bytes:
lcKeyAscii = "1234567890123456ABCDEFGHIJKLMNOP"
loCrypt.SetEncodedKey(lcKeyAscii,"ascii")

lcPlainText = "The quick brown fox jumped over the lazy dog"

lcCipherText = loCrypt.EncryptStringENC(lcPlainText)
? lcCipherText
* Output should be (case insensitive):
* 276855ca6c0d60f7d9708210440c1072e05d078e733b34b4198d609dc2fcc2f0c30926cdef3b6d52baf6e345aa03f83e

* Do 128-bit Blowfish encryption:
loCrypt.KeyLength = 128
lcKeyAscii = "1234567890123456"
loCrypt.SetEncodedKey(lcKeyAscii,"ascii")

lcCipherText = loCrypt.EncryptStringENC(lcPlainText)
? lcCipherText
* Output should be (case insensitive):
* d2b5abb73208aea3790621d028afcc74d8dd65fb9ea8e666444a72523f5ecca60df79a424e2c714fa6efbafcc40bdca

RELEASE loCrypt


 

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