Hi I read the following artivle http://www.securityfocus.com/news/11355/2 which has prompted me to reconsider my security setup, it is a home system but with open ssh ports and similar. My specific question is this - What method/cryptography is used to create the passwd hash under PAM ie. is it vunerable to rainbow type hash tables. -----snip---- ^^ article RainbowCrack Online will offer 11 tables covering six different hash algorithms, including LanMan, MD5, MySQL 323, and SHA-1 -----snip-----
now that said it is quite possible that I have got the wrong end of the stick so to speak, ie. I know that PAM handles login etc but is it PAM that generates the hash of my chosen password? If so can I expand my question to ask what program and further what algorithm is used to do this task. This is for my system of course but I guess the principle can be applied to many systems. EDIT As I was writing this I checked man passwd which seems to have answered my question on the whole ---snip--- The UNIX System encryption method is based on the NBS DES algorithm and is very secure. ---snip--- I have left my earlier question [more or less answered] just for some confirmation, but the new point is - Does the "NBS DES algorithm" come under the "salt" method? and is it therefore immune to attacks of the hash table variety? regards stuart ps. I know the above is a little disjointed but I am stumbling in the dark a little here. -- "There are 10 types of people in this world: those who understand binary, those who don't" --Unknown -- gentoo-security@gentoo.org mailing list