On Feb 18, 7:10 pm, "M.-A. Lemburg" <m...@egenix.com> wrote: > On 2009-02-18 14:23, SamG wrote: > > > Hi, > > > Using the python's Crypto.Cipher.Blowfish is create and encrypted file > > in the CBC mode. Now... when try to decrypt it with OpenSSL i get an > > error stating "bad magic number". > > Are you getting the error message from openssl ? It looks a lot > like an error message from Python. > > > I tried > > $ cat encr-file | openssl bf-cbc -d -pass pass:sam > org-file > > or > > $ openssl bf-cbc -d -pass pass:sam -in encr-file -out org-file > > > BTW, decryption using a python code works well. But i m of the > > impression a file encry with one program should/can be decrypt with > > another program (in my case openssl) using the same parameters. > > Ideally, that should work, but you also have to make sure that > the following two details are the same for both applications: > > 1. the way padding is done (Blowfish is a block cipher) > > 2. the way the initialization vector is set > > Otherwise the two won't interoperate properly. > > -- > Marc-Andre Lemburg > eGenix.com > > Professional Python Services directly from the Source (#1, Feb 18 2009)>>> > Python/Zope Consulting and Support ... http://www.egenix.com/ > >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ > >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ > > ________________________________________________________________________ > > ::: Try our new mxODBC.Connect Python Database Interface for free ! :::: > > eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 > D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg > Registered at Amtsgericht Duesseldorf: HRB 46611 > http://www.egenix.com/company/contact/
That must be it... But given a password how do i generate a (key, IV) pair??? SamG -- http://mail.python.org/mailman/listinfo/python-list
