diff options
| author | Matthias Gierlings <[email protected]> | 2019-04-20 09:45:59 +0200 |
|---|---|---|
| committer | Matthias Gierlings <[email protected]> | 2019-05-06 10:00:20 +0200 |
| commit | 6bbccffa70ac2e7764c0ea8f0d7c87880b9dc109 (patch) | |
| tree | 4f8a3671aa567e914f55440a4d4635d0a4619f55 /src/lib/pubkey/xmss/xmss_privatekey.cpp | |
| parent | b1976eb32b89e0dc88d2c9a760aefa4bafaf5cbe (diff) | |
Serialize XMSS leaf index as four bytes
Internally XMSS uses a 64 Bit type for the leaf index.
This patch removes the four leading zero bytes from the
XMSS leaf index and serializes it as a four byte value
as described in RFC 8391.
Test cases are adjusted accordingly.
The 64 Bit type is kept internally which potentially
allows for code reuse when implementing XMSS^MT on top
of the current XMSS code.
Diffstat (limited to 'src/lib/pubkey/xmss/xmss_privatekey.cpp')
| -rw-r--r-- | src/lib/pubkey/xmss/xmss_privatekey.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/lib/pubkey/xmss/xmss_privatekey.cpp b/src/lib/pubkey/xmss/xmss_privatekey.cpp index 6559f5204..ee6a605f6 100644 --- a/src/lib/pubkey/xmss/xmss_privatekey.cpp +++ b/src/lib/pubkey/xmss/xmss_privatekey.cpp @@ -48,7 +48,7 @@ XMSS_PrivateKey::XMSS_PrivateKey(const secure_vector<uint8_t>& raw_key) // extract & copy unused leaf index from raw_key. uint64_t unused_leaf = 0; auto begin = (raw_key.begin() + XMSS_PublicKey::size()); - auto end = raw_key.begin() + XMSS_PublicKey::size() + sizeof(uint64_t); + auto end = raw_key.begin() + XMSS_PublicKey::size() + sizeof(uint32_t); for(auto& i = begin; i != end; i++) { @@ -294,7 +294,7 @@ secure_vector<uint8_t> XMSS_PrivateKey::raw_private_key() const secure_vector<uint8_t> result(pk.begin(), pk.end()); result.reserve(size()); - for(int i = 7; i >= 0; i--) + for(int i = 3; i >= 0; i--) { result.push_back( static_cast<uint8_t>( |