blob: f4066cb17019f3fd417a8a9c1f5fad880f6f4989 (
plain)
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
|
#include "Swiften/StringCodecs/HMACSHA1.h"
#include <cassert>
#include "Swiften/StringCodecs/SHA1.h"
#include "Swiften/Base/ByteArray.h"
namespace Swift {
static const unsigned int B = 64;
ByteArray HMACSHA1::getResult(const ByteArray& key, const ByteArray& data) {
assert(key.getSize() <= B);
// Create the padded key
ByteArray paddedKey(key);
paddedKey.resize(B);
for (unsigned int i = key.getSize(); i < paddedKey.getSize(); ++i) {
paddedKey[i] = 0x0;
}
// Create the first value
ByteArray x(paddedKey);
for (unsigned int i = 0; i < x.getSize(); ++i) {
x[i] ^= 0x36;
}
x += data;
// Create the second value
ByteArray y(paddedKey);
for (unsigned int i = 0; i < y.getSize(); ++i) {
y[i] ^= 0x5c;
}
y += SHA1::getHash(x);
return SHA1::getHash(y);
}
}
|
Swift