Mercurial > dropbear

annotate libtomcrypt/src/mac/f9/f9_memory_multi.c @ 1467:7279a633cc50

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Merge branch 'houseofkodai-cli_bind_address_connect'
author Matt Johnston <matt@ucc.asn.au>
date Fri, 26 Jan 2018 00:32:39 +0800
parents f849a5ca2efc
children 6dba84798cd5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
382
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parents:
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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diff changeset
4 * algorithms in a highly modular and flexible manner.
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diff changeset
5 *
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diff changeset
6 * The library is free for all purposes without any express
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
7 * guarantee it works.
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
8 *
1435
f849a5ca2efc update to libtomcrypt 1.17 (with Dropbear changes)
Matt Johnston <matt@ucc.asn.au>
parents: 382
diff changeset
9 * Tom St Denis, [email protected], http://libtom.org
382
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diff changeset
10 */
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
11 #include "tomcrypt.h"
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
12 #include <stdarg.h>
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diff changeset
13
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 /**
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diff changeset
15 @file f9_memory_multi.c
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
16 f9 support, process multiple blocks of memory, Tom St Denis
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diff changeset
17 */
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diff changeset
18
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diff changeset
19 #ifdef LTC_F9_MODE
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20
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
21 /**
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
22 f9 multiple blocks of memory
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Matt Johnston <matt@ucc.asn.au>
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23 @param cipher The index of the desired cipher
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
24 @param key The secret key
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
25 @param keylen The length of the secret key (octets)
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Matt Johnston <matt@ucc.asn.au>
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26 @param out [out] The destination of the authentication tag
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
27 @param outlen [in/out] The max size and resulting size of the authentication tag (octets)
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
28 @param in The data to send through f9
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
29 @param inlen The length of the data to send through f9 (octets)
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
30 @param ... tuples of (data,len) pairs to f9, terminated with a (NULL,x) (x=don't care)
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Matt Johnston <matt@ucc.asn.au>
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31 @return CRYPT_OK if successful
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Matt Johnston <matt@ucc.asn.au>
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32 */
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
33 int f9_memory_multi(int cipher,
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
34 const unsigned char *key, unsigned long keylen,
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
35 unsigned char *out, unsigned long *outlen,
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
36 const unsigned char *in, unsigned long inlen, ...)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37 {
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
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diff changeset
38 int err;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
39 f9_state *f9;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
40 va_list args;
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diff changeset
41 const unsigned char *curptr;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
42 unsigned long curlen;
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43
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
44 LTC_ARGCHK(key != NULL);
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Matt Johnston <matt@ucc.asn.au>
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45 LTC_ARGCHK(in != NULL);
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Matt Johnston <matt@ucc.asn.au>
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46 LTC_ARGCHK(out != NULL);
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47 LTC_ARGCHK(outlen != NULL);
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48
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
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49 /* allocate ram for f9 state */
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Matt Johnston <matt@ucc.asn.au>
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50 f9 = XMALLOC(sizeof(f9_state));
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Matt Johnston <matt@ucc.asn.au>
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51 if (f9 == NULL) {
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
52 return CRYPT_MEM;
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53 }
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54
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
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diff changeset
55 /* f9 process the message */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
56 if ((err = f9_init(f9, cipher, key, keylen)) != CRYPT_OK) {
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57 goto LBL_ERR;
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58 }
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diff changeset
59 va_start(args, inlen);
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diff changeset
60 curptr = in;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
61 curlen = inlen;
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diff changeset
62 for (;;) {
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diff changeset
63 /* process buf */
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
64 if ((err = f9_process(f9, curptr, curlen)) != CRYPT_OK) {
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65 goto LBL_ERR;
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Matt Johnston <matt@ucc.asn.au>
parents:
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66 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
67 /* step to next */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
68 curptr = va_arg(args, const unsigned char*);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
69 if (curptr == NULL) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70 break;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
71 }
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
72 curlen = va_arg(args, unsigned long);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
73 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
74 if ((err = f9_done(f9, out, outlen)) != CRYPT_OK) {
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
75 goto LBL_ERR;
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
76 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
77 LBL_ERR:
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
78 #ifdef LTC_CLEAN_STACK
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
79 zeromem(f9, sizeof(f9_state));
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
80 #endif
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
81 XFREE(f9);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
82 va_end(args);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
83 return err;
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
84 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
85
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
86 #endif
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
87
1435
f849a5ca2efc update to libtomcrypt 1.17 (with Dropbear changes)
Matt Johnston <matt@ucc.asn.au>
parents: 382
diff changeset
88 /* $Source$ */
f849a5ca2efc update to libtomcrypt 1.17 (with Dropbear changes)
Matt Johnston <matt@ucc.asn.au>
parents: 382
diff changeset
89 /* $Revision$ */
f849a5ca2efc update to libtomcrypt 1.17 (with Dropbear changes)
Matt Johnston <matt@ucc.asn.au>
parents: 382
diff changeset
90 /* $Date$ */