diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/pubkey/xmss/xmss_wots_publickey.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/lib/pubkey/xmss/xmss_wots_publickey.cpp b/src/lib/pubkey/xmss/xmss_wots_publickey.cpp index c944d6b10..9207a2c57 100644 --- a/src/lib/pubkey/xmss/xmss_wots_publickey.cpp +++ b/src/lib/pubkey/xmss/xmss_wots_publickey.cpp @@ -20,6 +20,8 @@ XMSS_WOTS_PublicKey::chain(secure_vector<uint8_t>& result, const secure_vector<uint8_t>& seed, XMSS_Hash& hash) { + secure_vector<uint8_t> prf_output(hash.output_length()); + for(size_t i = start_idx; i < (start_idx + steps) && i < m_wots_params.wots_parameter(); i++) @@ -34,7 +36,8 @@ XMSS_WOTS_PublicKey::chain(secure_vector<uint8_t>& result, adrs.set_key_mask_mode(XMSS_Address::Key_Mask::Key_Mode); //Calculate f(key, tmp XOR bitmask) - hash.f(result, hash.prf(seed, adrs.bytes()), result); + hash.prf(prf_output, seed, adrs.bytes()); + hash.f(result, prf_output, result); } } |