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3DES is a black cipher but block ciphers can be used for hashing. 3DES in particular was used on UNIX/Linux based systems quite extensively. http://www.freebsd
by UnoriginalGuy 14y ago
3DES is a black cipher but block ciphers can be used for hashing. 3DES in particular was used on UNIX/Linux based systems quite extensively.
http://www.freebsd.org/doc/handbook/crypt.html http://www.freebsd.org/doc/handbook/crypt.html
See this:
http://en.wikipedia.org/wiki/One-way_compression_function#Construction_from_block_ciphers http://en.wikipedia.org/wiki/One-way_compression_function#Co...
- apawloski 14y agoYeah, in retrospect I should have realized that (especially with bcrypt, also made from a block cipher, being the current standard for password storage). I didn't know DES was actually used for hashing though (perhaps unfortunately revealing my younger age and naiveté :)
- quinndupont 14y agoAll cryptography is fundamentally transposition and substitution of "symbols" (across a combinatoric space, an "alphabet"). Hash functions can be made from block ciphers, but really, symmetric and asymmetric crypto is just moving around some letters, but in interesting, deterministic ways.