Mercurial > dropbear

annotate libtomcrypt/src/mac/pmac/pmac_memory_multi.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
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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 #include <stdarg.h>
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11
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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12 /**
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13 @file pmac_memory_multi.c
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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14 PMAC implementation, process multiple blocks of memory, by Tom St Denis
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15 */
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16
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17 #ifdef LTC_PMAC
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18
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19 /**
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20 PMAC multiple blocks of memory
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21 @param cipher The index of the cipher desired
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22 @param key The secret key
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23 @param keylen The length of the secret key (octets)
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24 @param out [out] Destination for the authentication tag
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25 @param outlen [in/out] The max size and resulting size of the authentication tag
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26 @param in The data you wish to send through PMAC
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27 @param inlen The length of data you wish to send through PMAC (octets)
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28 @param ... tuples of (data,len) pairs to PMAC, terminated with a (NULL,x) (x=don't care)
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29 @return CRYPT_OK if successful
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30 */
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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31 int pmac_memory_multi(int cipher,
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32 const unsigned char *key, unsigned long keylen,
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33 unsigned char *out, unsigned long *outlen,
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34 const unsigned char *in, unsigned long inlen, ...)
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35 {
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36 int err;
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37 pmac_state *pmac;
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38 va_list args;
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39 const unsigned char *curptr;
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40 unsigned long curlen;
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41
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42 LTC_ARGCHK(key != NULL);
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43 LTC_ARGCHK(in != NULL);
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44 LTC_ARGCHK(out != NULL);
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45 LTC_ARGCHK(outlen != NULL);
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46
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47 /* allocate ram for pmac state */
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48 pmac = XMALLOC(sizeof(pmac_state));
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49 if (pmac == NULL) {
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50 return CRYPT_MEM;
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51 }
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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52
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53 if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) {
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54 goto LBL_ERR;
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55 }
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56 va_start(args, inlen);
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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57 curptr = in;
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58 curlen = inlen;
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59 for (;;) {
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60 /* process buf */
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61 if ((err = pmac_process(pmac, curptr, curlen)) != CRYPT_OK) {
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62 goto LBL_ERR;
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63 }
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64 /* step to next */
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65 curptr = va_arg(args, const unsigned char*);
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66 if (curptr == NULL) {
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67 break;
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68 }
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69 curlen = va_arg(args, unsigned long);
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70 }
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71 if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) {
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72 goto LBL_ERR;
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73 }
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74 LBL_ERR:
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75 #ifdef LTC_CLEAN_STACK
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76 zeromem(pmac, sizeof(pmac_state));
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77 #endif
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78 XFREE(pmac);
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79 va_end(args);
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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80 return err;
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81 }
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82
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83 #endif
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84
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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85 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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86 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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87 /* commit time: $Format:%ai$ */