2002-12-20 21:42:08 +01:00
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%%%----------------------------------------------------------------------
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%%% File : sha.erl
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%%% Author : Alexey Shchepin <alexey@sevcom.net>
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%%% Purpose :
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%%% Created : 20 Dec 2002 by Alexey Shchepin <alexey@sevcom.net>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(sha).
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-author('alexey@sevcom.net').
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-vsn('$Revision$ ').
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2003-01-09 20:59:16 +01:00
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-export([start/0, sha/1]).
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2002-12-20 21:42:08 +01:00
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start() ->
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2003-01-09 20:59:16 +01:00
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crypto:start().
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2002-12-20 21:42:08 +01:00
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2003-01-09 20:59:16 +01:00
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digit_to_xchar(D) when (D >= 0) and (D < 10) ->
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D + 48;
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digit_to_xchar(D) ->
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D + 87.
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2002-12-20 21:42:08 +01:00
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sha(Text) ->
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2003-01-09 20:59:16 +01:00
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Bin = crypto:sha(Text),
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lists:reverse(ints_to_rxstr(binary_to_list(Bin), [])).
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ints_to_rxstr([], Res) ->
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Res;
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ints_to_rxstr([N | Ns], Res) ->
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ints_to_rxstr(Ns, [digit_to_xchar(N rem 16),
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digit_to_xchar(N div 16) | Res]).
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2002-12-20 21:42:08 +01:00
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