Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/auth/password-scheme-otp.c @ 9008:fc4f65a4ca60 HEAD

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author Timo Sirainen <tss@iki.fi>
date Fri, 01 May 2009 14:56:52 -0400
parents 18173a52f721
children
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c04189d77a59 Added OTP and S/KEY authentication mechanisms. Patch by Andrey Panin.
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1 /*
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2 * OTP password scheme.
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3 *
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4 * Copyright (c) 2006 Andrey Panin <pazke@donpac.ru>
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5 *
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6 * This software is released under the MIT license.
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7 */
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8
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9 #include "lib.h"
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10 #include "hex-binary.h"
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11 #include "password-scheme.h"
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12 #include "randgen.h"
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13 #include "otp.h"
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14
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15 const char *password_generate_otp(const char *pw, const char *data,
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16 unsigned int algo)
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17 {
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18 struct otp_state state;
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19
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20 if (data != NULL) {
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21 if (otp_parse_dbentry(data, &state) != 0) {
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22 i_warning("Invalid OTP data in passdb");
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23 return "";
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24 }
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25 } else {
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26 /* Generate new OTP credentials from plaintext */
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27 unsigned char random_data[OTP_MAX_SEED_LEN / 2];
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28
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29 random_fill(random_data, sizeof(random_data));
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30 i_strocpy(state.seed, binary_to_hex(random_data,
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31 OTP_MAX_SEED_LEN / 2), sizeof(state.seed));
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32
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33 state.seq = 1024;
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34 state.algo = algo;
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35 }
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36
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37 otp_hash(state.algo, state.seed, pw, state.seq, state.hash);
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38
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39 return otp_print_dbentry(&state);
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40 }