Mercurial > dropbear

annotate libtomcrypt/src/pk/katja/katja_import.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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382
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diff changeset
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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diff changeset
9 #include "tomcrypt.h"
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10
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11 /**
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12 @file katja_import.c
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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13 Import a PKCS-style Katja key, Tom St Denis
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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parents: 1435
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14 */
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15
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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16 #ifdef LTC_MKAT
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17
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18 /**
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
19 Import an KatjaPublicKey or KatjaPrivateKey [two-prime only, only support >= 1024-bit keys, defined in PKCS #1 v2.1]
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20 @param in The packet to import from
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21 @param inlen It's length (octets)
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22 @param key [out] Destination for newly imported key
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23 @return CRYPT_OK if successful, upon error allocated memory is freed
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24 */
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25 int katja_import(const unsigned char *in, unsigned long inlen, katja_key *key)
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26 {
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27 int err;
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28 void *zero;
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29
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30 LTC_ARGCHK(in != NULL);
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31 LTC_ARGCHK(key != NULL);
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32 LTC_ARGCHK(ltc_mp.name != NULL);
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33
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34 /* init key */
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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35 if ((err = mp_init_multi(&zero, &key->d, &key->N, &key->dQ,
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diff changeset
36 &key->dP, &key->qP, &key->p, &key->q, &key->pq, NULL)) != CRYPT_OK) {
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37 return err;
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38 }
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39
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
40 if ((err = der_decode_sequence_multi(in, inlen,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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41 LTC_ASN1_INTEGER, 1UL, key->N,
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42 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
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43 goto LBL_ERR;
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44 }
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45
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46 if (mp_cmp_d(key->N, 0) == LTC_MP_EQ) {
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47 /* it's a private key */
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
48 if ((err = der_decode_sequence_multi(in, inlen,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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49 LTC_ASN1_INTEGER, 1UL, zero,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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50 LTC_ASN1_INTEGER, 1UL, key->N,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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51 LTC_ASN1_INTEGER, 1UL, key->d,
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52 LTC_ASN1_INTEGER, 1UL, key->p,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
53 LTC_ASN1_INTEGER, 1UL, key->q,
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54 LTC_ASN1_INTEGER, 1UL, key->dP,
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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parents: 1435
diff changeset
55 LTC_ASN1_INTEGER, 1UL, key->dQ,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
56 LTC_ASN1_INTEGER, 1UL, key->qP,
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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diff changeset
57 LTC_ASN1_INTEGER, 1UL, key->pq,
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diff changeset
58 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
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59 goto LBL_ERR;
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60 }
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61 key->type = PK_PRIVATE;
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62 } else {
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diff changeset
63 /* public we have N */
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diff changeset
64 key->type = PK_PUBLIC;
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diff changeset
65 }
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parents:
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66 mp_clear(zero);
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diff changeset
67 return CRYPT_OK;
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68 LBL_ERR:
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diff changeset
69 mp_clear_multi(zero, key->d, key->N, key->dQ, key->dP,
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parents:
diff changeset
70 key->qP, key->p, key->q, key->pq, NULL);
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diff changeset
71 return err;
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72 }
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parents:
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73
1435
f849a5ca2efc update to libtomcrypt 1.17 (with Dropbear changes)
Matt Johnston <matt@ucc.asn.au>
parents: 382
diff changeset
74 #endif /* LTC_MRSA */
382
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parents:
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75
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parents:
diff changeset
76
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
77 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
78 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
79 /* commit time: $Format:%ai$ */