Mercurial > dropbear

annotate libtomcrypt/src/hashes/helper/hash_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
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rev   line source
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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 #include "tomcrypt.h"
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10
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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11 #ifdef LTC_HASH_HELPERS
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12 /**
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13 @file hash_memory.c
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14 Hash memory helper, Tom St Denis
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15 */
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17 /**
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18 Hash a block of memory and store the digest.
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19 @param hash The index of the hash you wish to use
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20 @param in The data you wish to hash
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21 @param inlen The length of the data to hash (octets)
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22 @param out [out] Where to store the digest
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23 @param outlen [in/out] Max size and resulting size of the digest
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24 @return CRYPT_OK if successful
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25 */
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26 int hash_memory(int hash, const unsigned char *in, unsigned long inlen, unsigned char *out, unsigned long *outlen)
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27 {
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28 hash_state *md;
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29 int err;
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30
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31 LTC_ARGCHK(in != NULL);
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32 LTC_ARGCHK(out != NULL);
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33 LTC_ARGCHK(outlen != NULL);
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35 if ((err = hash_is_valid(hash)) != CRYPT_OK) {
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36 return err;
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37 }
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38
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39 if (*outlen < hash_descriptor[hash].hashsize) {
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40 *outlen = hash_descriptor[hash].hashsize;
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41 return CRYPT_BUFFER_OVERFLOW;
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42 }
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44 md = XMALLOC(sizeof(hash_state));
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45 if (md == NULL) {
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46 return CRYPT_MEM;
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47 }
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49 if ((err = hash_descriptor[hash].init(md)) != CRYPT_OK) {
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50 goto LBL_ERR;
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51 }
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52 if ((err = hash_descriptor[hash].process(md, in, inlen)) != CRYPT_OK) {
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53 goto LBL_ERR;
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54 }
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55 err = hash_descriptor[hash].done(md, out);
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56 *outlen = hash_descriptor[hash].hashsize;
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57 LBL_ERR:
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58 #ifdef LTC_CLEAN_STACK
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59 zeromem(md, sizeof(hash_state));
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60 #endif
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61 XFREE(md);
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62
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63 return err;
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64 }
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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65 #endif /* #ifdef LTC_HASH_HELPERS */
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66
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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67 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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68 /* git commit: $Format:%H$ */
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69 /* commit time: $Format:%ai$ */