Penguin
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A CryptographicHash is a Hash that has the added attribute that it is practically impossible given a document with one hash, to create a document that has the same hash. Just take my word for it, the math is too complicated.

There are several well known and understood hashing algorithms:

  • MD2?, a good hash, li'l slow tho RFC:1319
  • MD4?, RFC:1320
  • MD5, based on MD2 but faster (I think). RFC:1321
  • SHA1, a group of people got bored and designed their own CryptographicHash. What can I say? They musta been mad ;) Generally considered more "secure" than MD5. Why? I dunno. :(

See also: CRC


CategoryCryptography