OpenCoverage

dh_rfc7919.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/dh/dh_rfc7919.c
Source codeSwitch to Preprocessed file
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1/*-
2 * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
4 * Licensed under the OpenSSL license (the "License"). You may not use-
5 * this file except in compliance with the License. You can obtain a copy-
6 * in the file LICENSE in the source distribution or at-
7 * https://www.openssl.org/source/license.html-
8 */-
9-
10#include <stdio.h>-
11#include "internal/cryptlib.h"-
12#include "dh_locl.h"-
13#include <openssl/bn.h>-
14#include <openssl/objects.h>-
15#include "internal/bn_dh.h"-
16-
17static DH *dh_param_init(const BIGNUM *p, int32_t nbits)-
18{-
19 DH *dh = DH_new();-
20 if (dh == NULL)
dh == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1
21 return NULL;
never executed: return ((void *)0) ;
0
22 dh->p = (BIGNUM *)p;-
23 dh->g = (BIGNUM *)&_bignum_const_2;-
24 dh->length = nbits;-
25 return dh;
executed 1 time by 1 test: return dh;
Executed by:
  • libcrypto.so.1.1
1
26}-
27-
28DH *DH_new_by_nid(int nid)-
29{-
30 switch (nid) {-
31 case NID_ffdhe2048:
executed 1 time by 1 test: case 1126:
Executed by:
  • libcrypto.so.1.1
1
32 return dh_param_init(&_bignum_ffdhe2048_p, 225);
executed 1 time by 1 test: return dh_param_init(&_bignum_ffdhe2048_p, 225);
Executed by:
  • libcrypto.so.1.1
1
33 case NID_ffdhe3072:
never executed: case 1127:
0
34 return dh_param_init(&_bignum_ffdhe3072_p, 275);
never executed: return dh_param_init(&_bignum_ffdhe3072_p, 275);
0
35 case NID_ffdhe4096:
never executed: case 1128:
0
36 return dh_param_init(&_bignum_ffdhe4096_p, 325);
never executed: return dh_param_init(&_bignum_ffdhe4096_p, 325);
0
37 case NID_ffdhe6144:
never executed: case 1129:
0
38 return dh_param_init(&_bignum_ffdhe6144_p, 375);
never executed: return dh_param_init(&_bignum_ffdhe6144_p, 375);
0
39 case NID_ffdhe8192:
never executed: case 1130:
0
40 return dh_param_init(&_bignum_ffdhe8192_p, 400);
never executed: return dh_param_init(&_bignum_ffdhe8192_p, 400);
0
41 default:
never executed: default:
0
42 DHerr(DH_F_DH_NEW_BY_NID, DH_R_INVALID_PARAMETER_NID);-
43 return NULL;
never executed: return ((void *)0) ;
0
44 }-
45}-
46-
47int DH_get_nid(const DH *dh)-
48{-
49 int nid;-
50-
51 if (BN_get_word(dh->g) != 2)
BN_get_word(dh->g) != 2Description
TRUEnever evaluated
FALSEnever evaluated
0
52 return NID_undef;
never executed: return 0;
0
53 if (!BN_cmp(dh->p, &_bignum_ffdhe2048_p))
!BN_cmp(dh->p,...m_ffdhe2048_p)Description
TRUEnever evaluated
FALSEnever evaluated
0
54 nid = NID_ffdhe2048;
never executed: nid = 1126;
0
55 else if (!BN_cmp(dh->p, &_bignum_ffdhe3072_p))
!BN_cmp(dh->p,...m_ffdhe3072_p)Description
TRUEnever evaluated
FALSEnever evaluated
0
56 nid = NID_ffdhe3072;
never executed: nid = 1127;
0
57 else if (!BN_cmp(dh->p, &_bignum_ffdhe4096_p))
!BN_cmp(dh->p,...m_ffdhe4096_p)Description
TRUEnever evaluated
FALSEnever evaluated
0
58 nid = NID_ffdhe4096;
never executed: nid = 1128;
0
59 else if (!BN_cmp(dh->p, &_bignum_ffdhe6144_p))
!BN_cmp(dh->p,...m_ffdhe6144_p)Description
TRUEnever evaluated
FALSEnever evaluated
0
60 nid = NID_ffdhe6144;
never executed: nid = 1129;
0
61 else if (!BN_cmp(dh->p, &_bignum_ffdhe8192_p))
!BN_cmp(dh->p,...m_ffdhe8192_p)Description
TRUEnever evaluated
FALSEnever evaluated
0
62 nid = NID_ffdhe8192;
never executed: nid = 1130;
0
63 else-
64 return NID_undef;
never executed: return 0;
0
65 if (dh->q != NULL) {
dh->q != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
66 BIGNUM *q = BN_dup(dh->p);-
67-
68 /* Check q = p * 2 + 1 we already know q is odd, so just shift right */-
69 if (q == NULL || !BN_rshift1(q, q) || !BN_cmp(dh->q, q))
q == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
!BN_rshift1(q, q)Description
TRUEnever evaluated
FALSEnever evaluated
!BN_cmp(dh->q, q)Description
TRUEnever evaluated
FALSEnever evaluated
0
70 nid = NID_undef;
never executed: nid = 0;
0
71 BN_free(q);-
72 }
never executed: end of block
0
73 return nid;
never executed: return nid;
0
74}-
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