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comparison libtomcrypt/src/pk/katja/katja_import.c @ 1471:6dba84798cd5

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Update to libtomcrypt 1.18.1, merged with Dropbear changes
author Matt Johnston <matt@ucc.asn.au>
date Fri, 09 Feb 2018 21:44:05 +0800
parents f849a5ca2efc
children
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1470:8bba51a55704 1471:6dba84798cd5
3 * LibTomCrypt is a library that provides various cryptographic 3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner. 4 * algorithms in a highly modular and flexible manner.
5 * 5 *
6 * The library is free for all purposes without any express 6 * The library is free for all purposes without any express
7 * guarantee it works. 7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtom.org
10 */ 8 */
11 #include "tomcrypt.h" 9 #include "tomcrypt.h"
12 10
13 /** 11 /**
14 @file katja_import.c 12 @file katja_import.c
15 Import a LTC_PKCS-style Katja key, Tom St Denis 13 Import a PKCS-style Katja key, Tom St Denis
16 */ 14 */
17 15
18 #ifdef MKAT 16 #ifdef LTC_MKAT
19 17
20 /** 18 /**
21 Import an KatjaPublicKey or KatjaPrivateKey [two-prime only, only support >= 1024-bit keys, defined in LTC_PKCS #1 v2.1] 19 Import an KatjaPublicKey or KatjaPrivateKey [two-prime only, only support >= 1024-bit keys, defined in PKCS #1 v2.1]
22 @param in The packet to import from 20 @param in The packet to import from
23 @param inlen It's length (octets) 21 @param inlen It's length (octets)
24 @param key [out] Destination for newly imported key 22 @param key [out] Destination for newly imported key
25 @return CRYPT_OK if successful, upon error allocated memory is freed 23 @return CRYPT_OK if successful, upon error allocated memory is freed
26 */ 24 */
32 LTC_ARGCHK(in != NULL); 30 LTC_ARGCHK(in != NULL);
33 LTC_ARGCHK(key != NULL); 31 LTC_ARGCHK(key != NULL);
34 LTC_ARGCHK(ltc_mp.name != NULL); 32 LTC_ARGCHK(ltc_mp.name != NULL);
35 33
36 /* init key */ 34 /* init key */
37 if ((err = mp_init_multi(&zero, &key->d, &key->N, &key->dQ, 35 if ((err = mp_init_multi(&zero, &key->d, &key->N, &key->dQ,
38 &key->dP, &key->qP, &key->p, &key->q, &key->pq, NULL)) != CRYPT_OK) { 36 &key->dP, &key->qP, &key->p, &key->q, &key->pq, NULL)) != CRYPT_OK) {
39 return err; 37 return err;
40 } 38 }
41 39
42 if ((err = der_decode_sequence_multi(in, inlen, 40 if ((err = der_decode_sequence_multi(in, inlen,
43 LTC_ASN1_INTEGER, 1UL, key->N, 41 LTC_ASN1_INTEGER, 1UL, key->N,
44 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) { 42 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
45 goto LBL_ERR; 43 goto LBL_ERR;
46 } 44 }
47 45
48 if (mp_cmp_d(key->N, 0) == LTC_MP_EQ) { 46 if (mp_cmp_d(key->N, 0) == LTC_MP_EQ) {
49 /* it's a private key */ 47 /* it's a private key */
50 if ((err = der_decode_sequence_multi(in, inlen, 48 if ((err = der_decode_sequence_multi(in, inlen,
51 LTC_ASN1_INTEGER, 1UL, zero, 49 LTC_ASN1_INTEGER, 1UL, zero,
52 LTC_ASN1_INTEGER, 1UL, key->N, 50 LTC_ASN1_INTEGER, 1UL, key->N,
53 LTC_ASN1_INTEGER, 1UL, key->d, 51 LTC_ASN1_INTEGER, 1UL, key->d,
54 LTC_ASN1_INTEGER, 1UL, key->p, 52 LTC_ASN1_INTEGER, 1UL, key->p,
55 LTC_ASN1_INTEGER, 1UL, key->q, 53 LTC_ASN1_INTEGER, 1UL, key->q,
56 LTC_ASN1_INTEGER, 1UL, key->dP, 54 LTC_ASN1_INTEGER, 1UL, key->dP,
57 LTC_ASN1_INTEGER, 1UL, key->dQ, 55 LTC_ASN1_INTEGER, 1UL, key->dQ,
58 LTC_ASN1_INTEGER, 1UL, key->qP, 56 LTC_ASN1_INTEGER, 1UL, key->qP,
59 LTC_ASN1_INTEGER, 1UL, key->pq, 57 LTC_ASN1_INTEGER, 1UL, key->pq,
60 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) { 58 LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
61 goto LBL_ERR; 59 goto LBL_ERR;
62 } 60 }
63 key->type = PK_PRIVATE; 61 key->type = PK_PRIVATE;
64 } else { 62 } else {
74 } 72 }
75 73
76 #endif /* LTC_MRSA */ 74 #endif /* LTC_MRSA */
77 75
78 76
79 /* $Source$ */ 77 /* ref: $Format:%D$ */
80 /* $Revision$ */ 78 /* git commit: $Format:%H$ */
81 /* $Date$ */ 79 /* commit time: $Format:%ai$ */