Mercurial > dropbear

annotate libtomcrypt/src/mac/f9/f9_file.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 e9dba7abd939
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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diff changeset
2 *
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diff changeset
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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diff changeset
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 /**
382
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12 @file f9_file.c
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diff changeset
13 f9 support, process a file, Tom St Denis
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14 */
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15
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16 #ifdef LTC_F9_MODE
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17
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18 /**
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19 f9 a file
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20 @param cipher The index of the cipher desired
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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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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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23 @param fname The name of the file you wish to f9
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24 @param out [out] Where the authentication tag is to be stored
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25 @param outlen [in/out] The max size and resulting size of the authentication tag
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26 @return CRYPT_OK if successful, CRYPT_NOP if file support has been disabled
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27 */
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28 int f9_file(int cipher,
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29 const unsigned char *key, unsigned long keylen,
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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30 const char *fname,
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31 unsigned char *out, unsigned long *outlen)
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32 {
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33 #ifdef LTC_NO_FILE
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e9dba7abd939 Merge libtomcrypt v1.18.2
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34 LTC_UNUSED_PARAM(cipher);
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35 LTC_UNUSED_PARAM(key);
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36 LTC_UNUSED_PARAM(keylen);
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37 LTC_UNUSED_PARAM(fname);
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38 LTC_UNUSED_PARAM(out);
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39 LTC_UNUSED_PARAM(outlen);
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40 return CRYPT_NOP;
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41 #else
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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42 size_t x;
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43 int err;
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44 f9_state f9;
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45 FILE *in;
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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46 unsigned char *buf;
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47
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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48 LTC_ARGCHK(key != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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49 LTC_ARGCHK(fname != NULL);
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50 LTC_ARGCHK(out != NULL);
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51 LTC_ARGCHK(outlen != NULL);
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52
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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53 if ((buf = XMALLOC(LTC_FILE_READ_BUFSIZE)) == NULL) {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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54 return CRYPT_MEM;
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55 }
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56
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57 if ((err = f9_init(&f9, cipher, key, keylen)) != CRYPT_OK) {
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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58 goto LBL_ERR;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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59 }
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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60
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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61 in = fopen(fname, "rb");
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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62 if (in == NULL) {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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63 err = CRYPT_FILE_NOTFOUND;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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64 goto LBL_ERR;
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65 }
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66
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67 do {
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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68 x = fread(buf, 1, LTC_FILE_READ_BUFSIZE, in);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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69 if ((err = f9_process(&f9, buf, (unsigned long)x)) != CRYPT_OK) {
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70 fclose(in);
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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71 goto LBL_CLEANBUF;
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72 }
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
73 } while (x == LTC_FILE_READ_BUFSIZE);
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74
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
75 if (fclose(in) != 0) {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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76 err = CRYPT_ERROR;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
77 goto LBL_CLEANBUF;
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78 }
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79
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
80 err = f9_done(&f9, out, outlen);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
81
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
82 LBL_CLEANBUF:
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
83 zeromem(buf, LTC_FILE_READ_BUFSIZE);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
84 LBL_ERR:
382
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diff changeset
85 #ifdef LTC_CLEAN_STACK
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
86 zeromem(&f9, sizeof(f9_state));
382
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87 #endif
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
88 XFREE(buf);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
89 return err;
382
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diff changeset
90 #endif
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diff changeset
91 }
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92
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diff changeset
93 #endif
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94
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
95 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
96 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
97 /* commit time: $Format:%ai$ */