hashalot - read a passphrase and print a hash
hashalot [ -s SALT ] [ -x ] [ -n #BYTES ] [ -q ] [ HASHTYPE ] HASHTYPE [ -s SALT ] [ -x ] [ -n #BYTES ] [ -q ]
hashalot is a small tool that reads a passphrase from standard input, hashes it using the given hash type, and prints the result to standard output. Warning: If you do not use the -x option, the hash is printed in binary. This may wedge your terminal settings, or even force you to log out. This is not a general purpose hasher, only the first line is used, not even including the final newline. Thus, don't be surprised if the output seems to be different from other tools -- you'd have to hash exactly the same string. Supported values for HASHTYPE: ripemd160 rmd160 rmd160compat sha256 sha384 sha512
The option -s SALT specifies an initialization vector to the hashing algorithm. You need this if you want to prevent identical passwords to map to identical hashes, which is a security risk. If the -x option is given then the hash will be printed as a string of hexadecimal digits. The -n option can be used to limit (or increase) the number of bytes output. The default is as appropriate for the specified hash algorithm: 20 bytes for RIPEMD160, 32 bytes for SHA256, etc. The default for the "rmd160compat" hash is 16 bytes, for compatibility with the old kerneli.org utilities. The -q option causes hashalot to be more quiet and not print some warnings which may be superfluous.
Ben Slusky <sluskyb@paranoiacs.org> This manual page was written by Matthias Urlichs <smurf@debian.org>. 09 Feb 2004 HASHALOT(1)
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.