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Blowfish decryption in C

In C (linux), I am pulling a Blowfish encoded string from the database. I know the "passphrase" and obviously I have the encoded string. Can I use the crypto libraries to decode this string?

I've tried decrypting from the command line using openssl but I have been unsuccessful. Strangely enough, I found an online tool which uses the the crypt_blowfish class of the PEAR project and this does decode my string successfully. That tool is: http://thom-patterson.com/Toys/Encryption/index.php

A little guidance would be greatly appreciated.

F. Dominicus

Sure you can use libssl for decryption. Have you seen the examples? Have you written some code to try out?

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F. Dominicus

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merimax

ASKER

Well, at this point I can't even get the openssl command line routines to decrypt the string. Since I can get the tool http://thom-patterson.com/Toys/Encryption/index.php to decrypt the string then I realize I am missing something pretty obvious.

merimax

ASKER

Ok. I am able to get this to work the way I want in PHP. Could someone offer some suggestions on how to convert this to C using the openssl blowfish libraries. I have tried several different combinations of openssl blowfish routines and I keep going around in circles. Anyway this is how I got it to work in PHP....

$p="password.sample" ;
$i="MCtwzLQuwdQdhwhciKlhORtKO5K8g8HhA7JGMfpxs41Wtct7lVwHKw==" ;
$blowfish = new Crypt_Blowfish($p);
$output = $blowfish->decrypt(base64_decode($i));

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masheik

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Tolomir

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