1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmASN1.h"
#include "gdcmSystem.h"
#include <string.h>
#ifdef GDCM_USE_SYSTEM_OPENSSL
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
#endif
#include <fstream>
/*
*/
namespace gdcm
{
class ASN1Internals
{
public:
};
ASN1::ASN1()
{
Internals = new ASN1Internals;
}
ASN1::~ASN1()
{
delete Internals;
}
bool ASN1::ParseDumpFile(const char *filename)
{
if(!filename) return false;
std::ifstream is(filename, std::ios::binary);
if( !is.good() ) return false;
size_t length = System::FileSize(filename);
char * str = new char[length];
is.read( str, length );
bool b = ParseDump( str, length );
delete[] str;
return b;
}
bool ASN1::ParseDump(const char *array, size_t length)
{
#ifdef GDCM_USE_SYSTEM_OPENSSL
// check array pointer:
// if length == 0, then return ok. This is an empty element.
if( !array ) return !length;
int indent = 1; // 0 is not visually nice
int dump = 0; // -1 => will print hex stuff
BIO *out=NULL;
out=BIO_new(BIO_s_file());
assert( out );
BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
if (!ASN1_parse_dump(out,(unsigned char*)array,length,indent,dump) )
{
return false;
}
return true;
#else
(void)array;
(void)length;
gdcmDebugMacro( "GDCM_USE_SYSTEM_OPENSSL is OFF" );
return false;
#endif
}
#ifdef GDCM_USE_SYSTEM_OPENSSL
static int print_hex(unsigned char *buf, int len)
{
int i;
int n;
for(i=0,n=0;i<len;i++){
if(n > 7){
printf("\n");
n = 0;
}
printf("0x%02x, ",buf[i]);
n++;
}
printf("\n");
return(0);
}
#endif
int ASN1::TestPBKDF2()
{
#ifdef GDCM_USE_SYSTEM_OPENSSL
const char pass[] = "password";
const char salt[] = "12340000";
int ic = 1;
unsigned char buf[1024];
ic = 1;
PKCS5_PBKDF2_HMAC_SHA1(pass, (int)strlen(pass), (unsigned char*)salt,
(int)strlen(salt), ic, 32+16, buf);
printf("PKCS5_PBKDF2_HMAC_SHA1(\"%s\", \"%s\", %d)=\n", pass, salt, ic);
print_hex(buf, 32+16);
ic = 1;
EVP_BytesToKey(EVP_aes_256_cbc(), EVP_sha1(), (unsigned char*)salt,
(unsigned char*)pass, (int)strlen(pass), ic, buf, buf+32);
printf("EVP_BytesToKey(\"%s\", \"%s\", %d)=\n", pass, salt, ic);
print_hex(buf, 32+16);
#endif
return 0;
}
} // end namespace gdcm
|
