Mercurial > dropbear

annotate libtomcrypt/src/mac/poly1305/poly1305_memory.c @ 1629:258b57b208ae

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Fix for issue successfull login of disabled user (#78) This commit introduces fix for scenario: 1. Root login disabled on dropbear 2. PAM authentication model enabled While login as root user, after prompt for password user is being notified about login failrue, but after second attempt of prompt for password within same session, login becames succesfull. Signed-off-by: Pawel Rapkiewicz <[email protected]>
author vincentto13 <33652988+vincentto13@users.noreply.github.com>
date Wed, 20 Mar 2019 15:03:40 +0100
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1471
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 /* The implementation is based on:
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11 * Public Domain poly1305 from Andrew Moon
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12 * https://github.com/floodyberry/poly1305-donna
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13 */
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14
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15 #include "tomcrypt.h"
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16
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17 #ifdef LTC_POLY1305
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18
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19 /**
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20 POLY1305 a block of memory to produce the authentication tag
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21 @param key The secret key
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22 @param keylen The length of the secret key (octets)
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23 @param in The data to POLY1305
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24 @param inlen The length of the data to POLY1305 (octets)
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25 @param mac [out] Destination of the authentication tag
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26 @param maclen [in/out] Max size and resulting size of authentication tag
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27 @return CRYPT_OK if successful
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28 */
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29 int poly1305_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen)
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30 {
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31 poly1305_state st;
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32 int err;
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33
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34 LTC_ARGCHK(key != NULL);
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35 LTC_ARGCHK(in != NULL);
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36 LTC_ARGCHK(mac != NULL);
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37 LTC_ARGCHK(maclen != NULL);
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38
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39 if ((err = poly1305_init(&st, key, keylen)) != CRYPT_OK) { goto LBL_ERR; }
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40 if ((err = poly1305_process(&st, in, inlen)) != CRYPT_OK) { goto LBL_ERR; }
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41 err = poly1305_done(&st, mac, maclen);
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42 LBL_ERR:
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43 #ifdef LTC_CLEAN_STACK
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44 zeromem(&st, sizeof(poly1305_state));
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45 #endif
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46 return err;
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47 }
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48
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49 #endif
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50
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51 /* ref: $Format:%D$ */
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52 /* git commit: $Format:%H$ */
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53 /* commit time: $Format:%ai$ */