Digital Certificate Operation in a Complex Environment
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A fixed-size result obtained by applying a mathematical
(the hashing algorithm) to the data supplied (possibly a
password or a longer message). Usually, a
hash value will be much shorter than the original data.
Most importantly, a hash is a one-way function. It is considered to be impossible (currently) to compute the original data (back) from the hash.
Thus, a hash may also known as a ' '). Typical hashing algorithms include MD2, MD4, MD5, and SHA-1.
See also .