Botan 3.5.0
Crypto and TLS for C&
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#include <xmss_common_ops.h>
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static void | create_l_tree (secure_vector< uint8_t > &result, wots_keysig_t pk, XMSS_Address &adrs, const secure_vector< uint8_t > &seed, XMSS_Hash &hash, const XMSS_Parameters ¶ms) |
static void | randomize_tree_hash (secure_vector< uint8_t > &result, const secure_vector< uint8_t > &left, const secure_vector< uint8_t > &right, XMSS_Address &adrs, const secure_vector< uint8_t > &seed, XMSS_Hash &hash, const XMSS_Parameters ¶ms) |
Operations shared by XMSS signature generation and verification operations.
Definition at line 25 of file xmss_common_ops.h.
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Algorithm 8: "ltree" Create an L-tree used to compute the leaves of the binary hash tree. Takes a WOTS+ public key and compresses it to a single n-byte value.
This overload is used in multithreaded scenarios, where it is required to provide seperate instances of XMSS_Hash to each thread.
[out] | result | Public key compressed to a single n-byte value pk[0]. |
[in] | pk | Winternitz One Time Signatures+ public key. |
[in] | adrs | Address encoding the address of the L-Tree |
[in] | seed | The seed generated during the public key generation. |
[in] | hash | Instance of XMSS_Hash, that may only be used by the thread executing create_l_tree. |
[in] | params | parameters |
Definition at line 46 of file xmss_common_ops.cpp.
References Botan::XMSS_Address::get_tree_height(), Botan::XMSS_Parameters::len(), randomize_tree_hash(), Botan::XMSS_Address::set_tree_height(), and Botan::XMSS_Address::set_tree_index().
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Algorithm 7: "RAND_HASH"
Generates a randomized hash.
This overload is used in multithreaded scenarios, where it is required to provide seperate instances of XMSS_Hash to each thread.
[out] | result | The resulting randomized hash. |
[in] | left | Left half of the hash function input. |
[in] | right | Right half of the hash function input. |
[in] | adrs | Adress of the hash function call. |
[in] | seed | The seed for G. |
[in] | hash | Instance of XMSS_Hash, that may only by the thread executing generate_public_key. |
[in] | params | parameters |
Definition at line 15 of file xmss_common_ops.cpp.
References BOTAN_ASSERT, Botan::XMSS_Address::bytes(), Botan::XMSS_Parameters::element_size(), Botan::XMSS_Hash::h(), Botan::XMSS_Address::Key_Mode, Botan::XMSS_Address::Mask_LSB_Mode, Botan::XMSS_Address::Mask_MSB_Mode, Botan::XMSS_Hash::prf(), and Botan::XMSS_Address::set_key_mask_mode().
Referenced by create_l_tree().