Mercurial > dropbear

annotate libtomcrypt/src/mac/xcbc/xcbc_memory.c @ 1857:6022df862942

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Use DSCP for IP QoS traffic classes The previous TOS values are deprecated and not used by modern traffic classifiers. This sets AF21 for "interactive" traffic (with a tty). Non-tty traffic sets AF11 - that indicates high throughput but is not lowest priority (which would be CS1 or LE). This differs from the CS1 used by OpenSSH, it lets interactive git over SSH have higher priority than background least effort traffic. Dropbear's settings here should be suitable with the diffservs used by CAKE qdisc.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 25 Jan 2022 17:32:20 +0800
parents 6dba84798cd5
children
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rev   line source
382
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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
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11 /**
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12 @file xcbc_process.c
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13 XCBC Support, XCBC-MAC a block of memory
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14 */
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15
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16 #ifdef LTC_XCBC
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17
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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parents: 1435
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18 /** XCBC-MAC a block of memory
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19 @param cipher Index of cipher to use
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20 @param key [in] Secret key
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21 @param keylen Length of key in octets
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22 @param in [in] Message to MAC
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23 @param inlen Length of input in octets
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24 @param out [out] Destination for the MAC tag
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25 @param outlen [in/out] Output size and final tag size
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26 Return CRYPT_OK on success.
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27 */
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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28 int xcbc_memory(int cipher,
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29 const unsigned char *key, unsigned long keylen,
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30 const unsigned char *in, unsigned long inlen,
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31 unsigned char *out, unsigned long *outlen)
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32 {
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33 xcbc_state *xcbc;
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34 int err;
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35
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36 /* is the cipher valid? */
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37 if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
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38 return err;
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39 }
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40
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41 /* Use accelerator if found */
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42 if (cipher_descriptor[cipher].xcbc_memory != NULL) {
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43 return cipher_descriptor[cipher].xcbc_memory(key, keylen, in, inlen, out, outlen);
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44 }
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45
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46 xcbc = XCALLOC(1, sizeof(*xcbc));
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47 if (xcbc == NULL) {
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48 return CRYPT_MEM;
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49 }
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50
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51 if ((err = xcbc_init(xcbc, cipher, key, keylen)) != CRYPT_OK) {
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52 goto done;
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53 }
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54
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55 if ((err = xcbc_process(xcbc, in, inlen)) != CRYPT_OK) {
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56 goto done;
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57 }
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58
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59 err = xcbc_done(xcbc, out, outlen);
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60 done:
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61 XFREE(xcbc);
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62 return err;
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63 }
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64
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65 #endif
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66
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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parents: 1435
diff changeset
67 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
68 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
69 /* commit time: $Format:%ai$ */