Mercurial > dropbear

annotate libtomcrypt/src/mac/pmac/pmac_memory_multi.c @ 1902:4a6725ac957c

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Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents 6dba84798cd5
children
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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 }
1471
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);
1471
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: $Format:%ai$ */