diff options
Diffstat (limited to 'src/lib/pubkey/xmss/xmss_parameters.cpp')
| -rw-r--r-- | src/lib/pubkey/xmss/xmss_parameters.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/lib/pubkey/xmss/xmss_parameters.cpp b/src/lib/pubkey/xmss/xmss_parameters.cpp new file mode 100644 index 000000000..5a106320b --- /dev/null +++ b/src/lib/pubkey/xmss/xmss_parameters.cpp @@ -0,0 +1,179 @@ +/** + * XMSS Parameters + * Descibes a signature method for XMSS, as defined in: + * [1] XMSS: Extended Hash-Based Signatures, + * draft-itrf-cfrg-xmss-hash-based-signatures-06 + * Release: July 2016. + * https://datatracker.ietf.org/doc/ + * draft-irtf-cfrg-xmss-hash-based-signatures/?include_text=1 + * + * (C) 2016 Matthias Gierlings + * + * Botan is released under the Simplified BSD License (see license.txt) + **/ + +#include <botan/xmss_parameters.h> + +namespace Botan { + +const std::map<std::string, XMSS_Parameters::xmss_algorithm_t> + XMSS_Parameters::m_oid_name_lut = + { + { "XMSS_SHA2-256_W16_H10", XMSS_SHA2_256_W16_H10 }, + { "XMSS_SHA2-256_W16_H16", XMSS_SHA2_256_W16_H16 }, + { "XMSS_SHA2-256_W16_H20", XMSS_SHA2_256_W16_H20 }, + { "XMSS_SHA2-512_W16_H10", XMSS_SHA2_512_W16_H10 }, + { "XMSS_SHA2-512_W16_H16", XMSS_SHA2_512_W16_H16 }, + { "XMSS_SHA2-512_W16_H20", XMSS_SHA2_512_W16_H20 } +// { "XMSS_SHAKE128_W16_H10", xmss_algorithm_t::XMSS_SHAKE128_W16_H10 }, +// { "XMSS_SHAKE128_W16_H16", xmss_algorithm_t::XMSS_SHAKE128_W16_H16 }, +// { "XMSS_SHAKE128_W16_H20", xmss_algorithm_t::XMSS_SHAKE128_W16_H20 }, +// { "XMSS_SHAKE256_W16_H10", xmss_algorithm_t::XMSS_SHAKE256_W16_H10 }, +// { "XMSS_SHAKE256_W16_H16", xmss_algorithm_t::XMSS_SHAKE256_W16_H16 }, +// { "XMSS_SHAKE256_W16_H20", xmss_algorithm_t::XMSS_SHAKE256_W16_H20 } + }; + +XMSS_Parameters::XMSS_Parameters(const std::string& algo_name) + : XMSS_Parameters(m_oid_name_lut.at(algo_name)) + {} + +XMSS_Parameters::XMSS_Parameters(xmss_algorithm_t oid) + : m_oid(oid) + { + switch(oid) + { + case XMSS_SHA2_256_W16_H10: + m_element_size = 32; + m_w = 16; + m_len = 67; + m_tree_height = 10; + m_name = "XMSS_SHA2-256_W16_H10"; + m_hash_name = "SHA-256"; + m_strength = 256; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_256_W16; + break; + case XMSS_SHA2_256_W16_H16: + m_element_size = 32; + m_w = 16; + m_len = 67; + m_tree_height = 16; + m_name = "XMSS_SHA2-256_W16_H16"; + m_hash_name = "SHA-256"; + m_strength = 256; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_256_W16; + break; + case XMSS_SHA2_256_W16_H20: + m_element_size = 32; + m_w = 16; + m_len = 67; + m_tree_height = 20; + m_name = "XMSS_SHA2-256_W16_H20"; + m_hash_name = "SHA-256"; + m_strength = 256; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_256_W16; + break; + case XMSS_SHA2_512_W16_H10: + m_element_size = 64; + m_w = 16; + m_len = 131; + m_tree_height = 10; + m_name = "XMSS_SHA2-512_W16_H10"; + m_hash_name = "SHA-512"; + m_strength = 512; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_512_W16; + break; + case XMSS_SHA2_512_W16_H16: + m_element_size = 64; + m_w = 16; + m_len = 131; + m_tree_height = 16; + m_name = "XMSS_SHA2-512_W16_H16"; + m_hash_name = "SHA-512"; + m_strength = 512; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_512_W16; + break; + case XMSS_SHA2_512_W16_H20: + m_element_size = 64; + m_w = 16; + m_len = 131; + m_tree_height = 20; + m_name = "XMSS_SHA2-512_W16_H20"; + m_hash_name = "SHA-512"; + m_strength = 512; + m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHA2_512_W16; + break; +// FIXME: Uncomment once SHAKE128/256 implementation is available in Botan. +// case XMSS_SHAKE128_W16_H10: +// m_element_size = 32; +// m_w = 16; +// m_len = 67; +// m_tree_height = 10; +// m_name = "XMSS_SHAKE128_W16_H10"; +// m_hash_name = ""; +// m_strength = 256; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE128_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE128_W16_H10 not implemented."); +// break; +// case XMSS_SHAKE128_W16_H16: +// m_element_size = 32; +// m_w = 16; +// m_len = 67; +// m_tree_height = 16; +// m_name = "XMSS_SHAKE128_W16_H16"; +// m_hash_name = ""; +// m_strength = 256; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE128_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE128_W16_H16 not implemented."); +// break; +// case XMSS_SHAKE128_W16_H20: +// m_element_size = 32; +// m_w = 16; +// m_len = 67; +// m_tree_height = 20; +// m_name = "XMSS_SHAKE128_W16_H20"; +// m_hash_name = ""; +// m_strength = 256; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE128_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE128_W16_H20 not implemented."); +// break; +// case XMSS_SHAKE256_W16_H10: +// m_element_size = 64; +// m_w = 16; +// m_len = 131; +// m_tree_height = 10; +// m_name = "XMSS_SHAKE256_W16_H10"; +// m_hash_name = ""; +// m_strength = 512; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE256_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE256_W16_H10 not implemented."); +// break; +// case XMSS_SHAKE256_W16_H16: +// m_element_size = 64; +// m_w = 16; +// m_len = 131; +// m_tree_height = 16; +// m_name = "XMSS_SHAKE256_W16_H16"; +// m_hash_name = ""; +// m_strength = 512; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE256_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE256_W16_H16 not implemented."); +// break; +// case XMSS_SHAKE256_W16_H20: +// m_element_size = 64; +// m_w = 16; +// m_len = 131; +// m_tree_height = 20; +// m_name = "XMSS_SHAKE256_W16_H20"; +// m_hash_name = ""; +// m_strength = 512; +// m_wots_oid = XMSS_WOTS_Parameters::ots_algorithm_t::WOTSP_SHAKE256_W16; +// BOTAN_ASSERT(false, "XMSS_SHAKE256_W16_H20 not implemented."); +// break; + default: + throw Unsupported_Argument( + "Algorithm id does not match any XMSS algorithm id."); + break; + } + } + +} |