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