Hi, I'm trying to decrypt messages that are encrypted with Eggdrop's blowfish encrypt() method. This method is also used by a irssi/mirc/xchat encryption module called FiSH.
I have already written some code to do it using libcrypto's EVP, but it produces gibberish output. You can see it here: http://rafb.net/paste/results/e15Deu53.html (ignore the == key.length(); on EVP_BytesToKey, it was part of an assertion I forgot to remove). I have two questions. Firstly, I understand the eggdrop's blowfish stuff uses a custom base64 method. The differences from 'standard base64' RFC 2045 (inherits RFC 1421) include: * The character assignments are different ("./0-9a-zA-Z" instead of "A-Za-z0-9+/") * Encoding is done low-order to high-order in 32bit blocks, instead of high-order to low-order in 24bit blocks. This leaves leftovers. * No support for padding character (=) How might I use libcrypto to solve my problem? Secondly, it uses ECB mode, and apparently ECB mode doesn't use an IV. Am I initializing the key correctly? ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
