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
|
/*
* Dibbler - a portable DHCPv6
*
* author: Tomasz Mrugalski <thomson@klub.com.pl>
*
* released under GNU GPL v2 licence
*/
#include <string.h>
#include "Key.h"
#include "Logger.h"
extern "C" {
#include "base64.h"
}
TSIGKey::TSIGKey(const std::string& name)
: Digest_(DIGEST_NONE), Name_(name), Fudge_(300) {
}
std::string TSIGKey::getAlgorithmText() {
switch (Digest_) {
case DIGEST_HMAC_MD5:
return std::string("HMAC-MD5.SIG-ALG.REG.INT");
case DIGEST_HMAC_SHA1:
return std::string("HMAC-SHA1.SIG-ALG.REG.INT");
case DIGEST_HMAC_SHA256:
return std::string("HMAC-SHA256.SIG-ALG.REG.INT");
default:
return std::string("Unsupported algorithm");
}
}
bool TSIGKey::setData(const std::string& base64encoded) {
Base64Data_ = base64encoded;
char raw[100];
size_t raw_len = 100;
memset(raw, 0, 100);
base64_decode_context ctx = {0};
base64_decode_ctx_init(&ctx);
bool status = base64_decode(&ctx, Base64Data_.c_str(),
Base64Data_.length(),
raw, &raw_len);
if (!status) {
Log(Warning) << "Failed to base64-decode key. There are trailing unparsed characters."
<< LogEnd;
}
Data_.resize(raw_len);
for (unsigned i=0; i<raw_len; i++) {
Data_[i] = raw[i];
}
return status;
}
std::string TSIGKey::getPackedData() {
return Data_;
}
std::string TSIGKey::getBase64Data() {
return Base64Data_;
}
|
