Homework
1
Homework – Password hashing
• Write 2 functions in C
– To hash a password and store it in a hashed form
– To verify supplied password against the stored password
• Notes
– First read: http://www.codeproject.com/Articles/704865/Salted-
Password-Hashing-Doing-it-Right
– Use password salting
– To generate the random salt use your code from the previous
seminars (on random data)
– Write both UNIX and Windows variants
– In Unix use the crypt() function [use e.g. sha256]
– In Windows implement yourself PBKDF2; use MS crypto API for
hash functions