diff options
Diffstat (limited to 'src/lib/pubkey/xmss/xmss_signature.cpp')
| -rw-r--r-- | src/lib/pubkey/xmss/xmss_signature.cpp | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/src/lib/pubkey/xmss/xmss_signature.cpp b/src/lib/pubkey/xmss/xmss_signature.cpp index 7e194a0eb..fddf8581f 100644 --- a/src/lib/pubkey/xmss/xmss_signature.cpp +++ b/src/lib/pubkey/xmss/xmss_signature.cpp @@ -16,12 +16,12 @@ XMSS_Signature::XMSS_Signature(XMSS_Parameters::xmss_algorithm_t oid, XMSS_Parameters xmss_params(oid); if(raw_sig.size() != (xmss_params.len() + xmss_params.tree_height() + 1) - * xmss_params.element_size() + sizeof(m_leaf_idx)) + * xmss_params.element_size() + sizeof(uint32_t)) { throw Decoding_Error("XMSS signature size invalid."); } - for(size_t i = 0; i < 8; i++) + for(size_t i = 0; i < 4; i++) { m_leaf_idx = ((m_leaf_idx << 8) | raw_sig[i]); } if(m_leaf_idx >= (1ull << xmss_params.tree_height())) @@ -29,7 +29,7 @@ XMSS_Signature::XMSS_Signature(XMSS_Parameters::xmss_algorithm_t oid, throw Decoding_Error("XMSS signature leaf index out of bounds."); } - auto begin = raw_sig.begin() + sizeof(m_leaf_idx); + auto begin = raw_sig.begin() + sizeof(uint32_t); auto end = begin + xmss_params.element_size(); std::copy(begin, end, std::back_inserter(m_randomness)); @@ -62,10 +62,6 @@ secure_vector<uint8_t> XMSS_Signature::bytes() const { secure_vector<uint8_t> result { - static_cast<uint8_t>(m_leaf_idx >> 56U), - static_cast<uint8_t>(m_leaf_idx >> 48U), - static_cast<uint8_t>(m_leaf_idx >> 40U), - static_cast<uint8_t>(m_leaf_idx >> 32U), static_cast<uint8_t>(m_leaf_idx >> 24U), static_cast<uint8_t>(m_leaf_idx >> 16U), static_cast<uint8_t>(m_leaf_idx >> 8U), |