OpenCoverage

ec_print.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/ec/ec_print.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/*-
2 * Copyright 2002-2018 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 <openssl/crypto.h>-
11#include <openssl/err.h>-
12#include "ec_lcl.h"-
13-
14BIGNUM *EC_POINT_point2bn(const EC_GROUP *group,-
15 const EC_POINT *point,-
16 point_conversion_form_t form,-
17 BIGNUM *ret, BN_CTX *ctx)-
18{-
19 size_t buf_len = 0;-
20 unsigned char *buf;-
21-
22 buf_len = EC_POINT_point2buf(group, point, form, &buf, ctx);-
23-
24 if (buf_len == 0)
buf_len == 0Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
25 return NULL;
never executed: return ((void *)0) ;
0
26-
27 ret = BN_bin2bn(buf, buf_len, ret);-
28-
29 OPENSSL_free(buf);-
30-
31 return ret;
executed 45 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
45
32}-
33-
34EC_POINT *EC_POINT_bn2point(const EC_GROUP *group,-
35 const BIGNUM *bn, EC_POINT *point, BN_CTX *ctx)-
36{-
37 size_t buf_len = 0;-
38 unsigned char *buf;-
39 EC_POINT *ret;-
40-
41 if ((buf_len = BN_num_bytes(bn)) == 0)
(buf_len = ((B...n)+7)/8)) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
42 return NULL;
never executed: return ((void *)0) ;
0
43 if ((buf = OPENSSL_malloc(buf_len)) == NULL) {
(buf = CRYPTO_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
44 ECerr(EC_F_EC_POINT_BN2POINT, ERR_R_MALLOC_FAILURE);-
45 return NULL;
never executed: return ((void *)0) ;
0
46 }-
47-
48 if (!BN_bn2bin(bn, buf)) {
!BN_bn2bin(bn, buf)Description
TRUEnever evaluated
FALSEnever evaluated
0
49 OPENSSL_free(buf);-
50 return NULL;
never executed: return ((void *)0) ;
0
51 }-
52-
53 if (point == NULL) {
point == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
54 if ((ret = EC_POINT_new(group)) == NULL) {
(ret = EC_POIN...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
55 OPENSSL_free(buf);-
56 return NULL;
never executed: return ((void *)0) ;
0
57 }-
58 } else
never executed: end of block
0
59 ret = point;
never executed: ret = point;
0
60-
61 if (!EC_POINT_oct2point(group, ret, buf, buf_len, ctx)) {
!EC_POINT_oct2... buf_len, ctx)Description
TRUEnever evaluated
FALSEnever evaluated
0
62 if (ret != point)
ret != pointDescription
TRUEnever evaluated
FALSEnever evaluated
0
63 EC_POINT_clear_free(ret);
never executed: EC_POINT_clear_free(ret);
0
64 OPENSSL_free(buf);-
65 return NULL;
never executed: return ((void *)0) ;
0
66 }-
67-
68 OPENSSL_free(buf);-
69 return ret;
never executed: return ret;
0
70}-
71-
72static const char *HEX_DIGITS = "0123456789ABCDEF";-
73-
74/* the return value must be freed (using OPENSSL_free()) */-
75char *EC_POINT_point2hex(const EC_GROUP *group,-
76 const EC_POINT *point,-
77 point_conversion_form_t form, BN_CTX *ctx)-
78{-
79 char *ret, *p;-
80 size_t buf_len = 0, i;-
81 unsigned char *buf = NULL, *pbuf;-
82-
83 buf_len = EC_POINT_point2buf(group, point, form, &buf, ctx);-
84-
85 if (buf_len == 0)
buf_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
86 return NULL;
never executed: return ((void *)0) ;
0
87-
88 ret = OPENSSL_malloc(buf_len * 2 + 2);-
89 if (ret == NULL) {
ret == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
90 OPENSSL_free(buf);-
91 return NULL;
never executed: return ((void *)0) ;
0
92 }-
93 p = ret;-
94 pbuf = buf;-
95 for (i = buf_len; i > 0; i--) {
i > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
96 int v = (int)*(pbuf++);-
97 *(p++) = HEX_DIGITS[v >> 4];-
98 *(p++) = HEX_DIGITS[v & 0x0F];-
99 }
never executed: end of block
0
100 *p = '\0';-
101-
102 OPENSSL_free(buf);-
103-
104 return ret;
never executed: return ret;
0
105}-
106-
107EC_POINT *EC_POINT_hex2point(const EC_GROUP *group,-
108 const char *buf, EC_POINT *point, BN_CTX *ctx)-
109{-
110 EC_POINT *ret = NULL;-
111 BIGNUM *tmp_bn = NULL;-
112-
113 if (!BN_hex2bn(&tmp_bn, buf))
!BN_hex2bn(&tmp_bn, buf)Description
TRUEnever evaluated
FALSEnever evaluated
0
114 return NULL;
never executed: return ((void *)0) ;
0
115-
116 ret = EC_POINT_bn2point(group, tmp_bn, point, ctx);-
117-
118 BN_clear_free(tmp_bn);-
119-
120 return ret;
never executed: return ret;
0
121}-
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