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Hash

Hash function (WMA link)

Hash[expr]

returns an integer hash for the given expr.

Hash[expr, type]

returns an integer hash of the specified type for the given expr.

The types supported are “MD5”, “Adler32”, “CRC32”, “SHA”, “SHA224”, “SHA256”, “SHA384”, and “SHA512”.

Hash[expr, type, format]

Returns the hash in the specified format.

• • Hash["The Adventures of Huckleberry Finn"]

• • Hash["The Adventures of Huckleberry Finn", "SHA256"]

• • Hash[1/3]

• • Hash[{a, b, {c, {d, e, f}}}]

• • Hash[SomeHead[3.1415]]

• • Hash[{a, b, c}, "xyzstr"]

  • $$\mathrm{Hash}\left[\left\{a,b,c\right\},\text{xyzstr},\text{Integer}\right]$$