file: job.t package: muf status: alpha
This function is identical to
secureHash except that the
result is returned as a single nonnegative fixnum (small integer), instead
of a string.
CAVEAT PROGRAMMER: Since the normal
secureHash return value
contains 160 bits, and a nonnegative Muq fixnum contains only
62 bits, this is much less secure: Use in authentication is not
However, if you just want a quick and easy way of reducing a string to
an efficient integer form,
secureHashFixnum may be just the
The specific application I had in mind when introducing this was
procedurally defined worlds in which a room is defined by a canonical
path string for it looking something like (say)
"north;west;north;up..." -- a fixnum hash of this canonical
name may then be an excellent basis from which to generate name and
contents for the room:
[ "Alice's Acres" "Barb's BAR-B-Q" "Carol's Chalet" | ]vec --> names Stack: "n;s;e;w" secureHashFixnum Stack: 3030486389481771550 3 % --> h Stack: names[h] Stack: "Barb's BAR-B-Q"
See section hash. See section |secureHash. See section |secureDigest. See section |secureHashCheck. See section secureHash. See section secureHashBinary.
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