Mercurial > dropbear

annotate libtomcrypt/src/mac/blake2/blake2smac.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 #include "tomcrypt.h"
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11
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12 #ifdef LTC_BLAKE2SMAC
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13
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14 /**
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15 Initialize an BLAKE2S MAC context.
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16 @param st The BLAKE2S MAC state
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17 @param outlen The size of the MAC output (octets)
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18 @param key The secret key
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19 @param keylen The length of the secret key (octets)
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20 @return CRYPT_OK if successful
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21 */
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22 int blake2smac_init(blake2smac_state *st, unsigned long outlen, const unsigned char *key, unsigned long keylen)
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23 {
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24 LTC_ARGCHK(st != NULL);
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25 LTC_ARGCHK(key != NULL);
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26 return blake2s_init(st, outlen, key, keylen);
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27 }
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28
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29 /**
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30 Process data through BLAKE2S MAC
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31 @param st The BLAKE2S MAC state
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32 @param in The data to send through HMAC
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33 @param inlen The length of the data to HMAC (octets)
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34 @return CRYPT_OK if successful
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35 */
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36 int blake2smac_process(blake2smac_state *st, const unsigned char *in, unsigned long inlen)
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37 {
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38 if (inlen == 0) return CRYPT_OK; /* nothing to do */
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39 LTC_ARGCHK(st != NULL);
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40 LTC_ARGCHK(in != NULL);
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41 return blake2s_process(st, in, inlen);
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42 }
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43
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44 /**
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45 Terminate a BLAKE2S MAC session
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46 @param st The BLAKE2S MAC state
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47 @param mac [out] The destination of the BLAKE2S MAC authentication tag
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48 @param maclen [in/out] The max size and resulting size of the BLAKE2S MAC authentication tag
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49 @return CRYPT_OK if successful
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50 */
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51 int blake2smac_done(blake2smac_state *st, unsigned char *mac, unsigned long *maclen)
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52 {
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53 LTC_ARGCHK(st != NULL);
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54 LTC_ARGCHK(mac != NULL);
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55 LTC_ARGCHK(maclen != NULL);
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56 LTC_ARGCHK(*maclen >= st->blake2s.outlen);
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57
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58 *maclen = st->blake2s.outlen;
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59 return blake2s_done(st, mac);
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60 }
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61
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62 #endif
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63
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64 /* ref: $Format:%D$ */
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65 /* git commit: $Format:%H$ */
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66 /* commit time: $Format:%ai$ */