Swiftdiff options
| author | Remko Tronçon <git@el-tramo.be> | 2009-11-19 20:54:01 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2009-11-19 20:54:20 (GMT) |
| commit | 250ede4f32a14f566fbafd634e2024c93677cf19 (patch) | |
| tree | 7e09ea5c685e046145d5f238409af235798a85f1 /Swiften/StringCodecs/HMACSHA1.cpp | |
| parent | 1e4a5816db5178b535a4405dd54df4c95491810f (diff) | |
| download | swift-250ede4f32a14f566fbafd634e2024c93677cf19.zip swift-250ede4f32a14f566fbafd634e2024c93677cf19.tar.bz2 | |
Added missing files of previous commit.
Diffstat (limited to 'Swiften/StringCodecs/HMACSHA1.cpp')
| -rw-r--r-- | Swiften/StringCodecs/HMACSHA1.cpp | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Swiften/StringCodecs/HMACSHA1.cpp b/Swiften/StringCodecs/HMACSHA1.cpp new file mode 100644 index 0000000..59f1482 --- /dev/null +++ b/Swiften/StringCodecs/HMACSHA1.cpp @@ -0,0 +1,39 @@ +#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::getBinaryHash(x); + + return SHA1::getBinaryHash(y); +} + +} |