Password hacking or password exploitation is itself a big field to investigate and in this field we need to get our self familiarize with password hashes to get a better understanding of exploitation.
Hash identifier is a tool to identify the different types of hashes used to encrypt data and especially passwords.
This is built-in tool in backtrack but other OS users can download it too from the following link.
Download: Hash Identifier
Linux User: can download and use this tool directly without any dependencies problem.
Windows Users: need to install the Python Interpreter before using this tool.
Download: Python Interpreter