43 lines
1.4 KiB
Erlang
43 lines
1.4 KiB
Erlang
#! /usr/bin/escript
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-mode(compile).
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-export([cracker/4, supervisor/3]).
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hexdigit(N) when (N >= 0) and (N =< 9) -> N + $0;
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hexdigit(N) when (N >= 10) and (N < 16) -> N - 10 + $a.
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hexbyte(N) -> [hexdigit(N bsr 4), hexdigit(N band 15)].
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match(Key, Hash) ->
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B = crypto:hash(sha256, Key),
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Hash == lists:append([hexbyte(X) || <<X:8/integer>> <= B]).
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cracker(Prefixes, Rest, Hashes, Boss) ->
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Results = [[[P|Q], Hash]
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|| P <- Prefixes, Q <- Rest, Hash <- Hashes, match([P|Q], Hash)],
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Boss ! {done, Results}.
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supervisor(0, Results, Caller) -> Caller ! {done, Results};
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supervisor(Tasks, Results, Caller) ->
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receive
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{done, Cracked} -> supervisor(Tasks - 1, Cracked ++ Results, Caller)
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end.
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main(_) ->
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Tasks = ["abc", "def", "ghi", "jkl", "mno", "pqr", "stuv", "wxyz"],
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Letter = lists:seq($a, $z),
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Rest = [[B, C, D, E] || B <- Letter, C <- Letter, D <- Letter, E <- Letter],
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Hashes = [
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"1115dd800feaacefdf481f1f9070374a2a81e27880f187396db67958b207cbad",
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"3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b",
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"74e1bb62f8dabb8125a58852b63bdf6eaef667cb56ac7f7cdba6d7305c50a22f"
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],
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Boss = spawn(?MODULE, supervisor, [length(Tasks), [], self()]),
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[spawn(?MODULE, cracker, [Prefixes, Rest, Hashes, Boss])
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|| Prefixes <- Tasks],
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receive
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{done, Results} -> Results
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end,
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[io:format("~s: ~s~n", Result) || Result <- Results].
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