diff options
Diffstat (limited to 'src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp')
-rw-r--r-- | src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp b/src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp index 74cb1c64b..a35fc7458 100644 --- a/src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp +++ b/src/lib/pubkey/mce/gf2m_rootfind_dcmp.cpp @@ -15,11 +15,11 @@ namespace Botan { namespace { -u32bit patch_root_array(gf2m* res_root_arr, - u32bit res_root_arr_len, - u32bit root_pos) +uint32_t patch_root_array(gf2m* res_root_arr, + uint32_t res_root_arr_len, + uint32_t root_pos) { - volatile u32bit i; + volatile uint32_t i; volatile gf2m patch_elem = 0x01; volatile gf2m cond_mask = (root_pos == res_root_arr_len); cond_mask = expand_mask_16bit(cond_mask); @@ -37,18 +37,18 @@ u32bit patch_root_array(gf2m* res_root_arr, class gf2m_decomp_rootfind_state { public: - gf2m_decomp_rootfind_state(const polyn_gf2m & p_polyn, u32bit code_length); + gf2m_decomp_rootfind_state(const polyn_gf2m & p_polyn, uint32_t code_length); void calc_LiK(const polyn_gf2m & sigma); gf2m calc_Fxj_j_neq_0( const polyn_gf2m & sigma, gf2m j_gray); void calc_next_Aij(); void calc_Ai_zero(const polyn_gf2m & sigma); secure_vector<gf2m> find_roots(const polyn_gf2m & sigma); - u32bit get_code_length() const { return code_length; }; - u32bit code_length; + uint32_t get_code_length() const { return code_length; }; + uint32_t code_length; secure_vector<gf2m> m_Lik; // size is outer_summands * m secure_vector<gf2m> m_Aij; // ... - u32bit m_outer_summands; + uint32_t m_outer_summands; gf2m m_j; gf2m m_j_gray; gf2m m_sigma_3_l; @@ -73,9 +73,9 @@ gf2m brootf_decomp__gray_to_lex(gf2m gray) /** * calculates ceil((t-4)/5) = outer_summands - 1 */ -u32bit brootf_decomp__calc_sum_limit(u32bit t) +uint32_t brootf_decomp__calc_sum_limit(uint32_t t) { - u32bit result; + uint32_t result; if(t < 4) { return 0; @@ -86,7 +86,7 @@ u32bit brootf_decomp__calc_sum_limit(u32bit t) return result; } -gf2m_decomp_rootfind_state::gf2m_decomp_rootfind_state(const polyn_gf2m & polyn, u32bit the_code_length) : +gf2m_decomp_rootfind_state::gf2m_decomp_rootfind_state(const polyn_gf2m & polyn, uint32_t the_code_length) : code_length(the_code_length), m_j(0), m_j_gray(0) { gf2m coeff_3; @@ -119,7 +119,7 @@ gf2m_decomp_rootfind_state::gf2m_decomp_rootfind_state(const polyn_gf2m & polyn, void gf2m_decomp_rootfind_state::calc_Ai_zero(const polyn_gf2m & sigma) { - u32bit i; + uint32_t i; /* * this function assumes this the first gray code element is zero */ @@ -138,9 +138,9 @@ void gf2m_decomp_rootfind_state::calc_next_Aij() * first thing, we declare Aij Aij_minusone and increase j. * Case j=0 upon function entry also included, then Aij contains A_{i,j=0}. */ - u32bit i; + uint32_t i; gf2m diff, new_j_gray; - u32bit Lik_pos_base; + uint32_t Lik_pos_base; this->m_j++; @@ -190,11 +190,11 @@ void gf2m_decomp_rootfind_state::calc_next_Aij() void gf2m_decomp_rootfind_state::calc_LiK(const polyn_gf2m & sigma) { std::shared_ptr<GF2m_Field> sp_field = sigma.get_sp_field(); - u32bit i, k, d; + uint32_t i, k, d; d = sigma.get_degree(); for(k = 0; k < sp_field->get_extension_degree(); k++) { - u32bit Lik_pos_base = k * this->m_outer_summands; + uint32_t Lik_pos_base = k * this->m_outer_summands; gf2m alpha_l_k_tt2_ttj[4]; alpha_l_k_tt2_ttj[0] = sp_field->gf_l_from_n(static_cast<gf2m>(1) << k); alpha_l_k_tt2_ttj[1] = sp_field->gf_mul_rrr(alpha_l_k_tt2_ttj[0], alpha_l_k_tt2_ttj[0]); @@ -203,14 +203,14 @@ void gf2m_decomp_rootfind_state::calc_LiK(const polyn_gf2m & sigma) alpha_l_k_tt2_ttj[3] = sp_field->gf_mul_rrr(alpha_l_k_tt2_ttj[2], alpha_l_k_tt2_ttj[2]); for(i = 0; i < this->m_outer_summands; i++) { - u32bit j; - u32bit five_i = 5*i; - u32bit Lik_pos = Lik_pos_base + i; + uint32_t j; + uint32_t five_i = 5*i; + uint32_t Lik_pos = Lik_pos_base + i; this->m_Lik[Lik_pos] = 0; for(j = 0; j <= 3; j++) { gf2m f, x; - u32bit f_ind = five_i + (static_cast<u32bit>(1) << j); + uint32_t f_ind = five_i + (static_cast<uint32_t>(1) << j); if(f_ind > d) { break; @@ -228,7 +228,7 @@ gf2m gf2m_decomp_rootfind_state::calc_Fxj_j_neq_0( const polyn_gf2m & sigma, gf2 { //needs the A_{ij} to compute F(x)_j gf2m sum = 0; - u32bit i; + uint32_t i; std::shared_ptr<GF2m_Field> sp_field = sigma.get_sp_field(); const gf2m jl_gray = sp_field->gf_l_from_n(j_gray); gf2m xl_j_tt_5 = sp_field->gf_square_rr(jl_gray); @@ -270,7 +270,7 @@ secure_vector<gf2m> gf2m_decomp_rootfind_state::find_roots(const polyn_gf2m & si const int sigma_degree = sigma.get_degree(); BOTAN_ASSERT(sigma_degree > 0, "Valid sigma"); secure_vector<gf2m> result(sigma_degree); - u32bit root_pos = 0; + uint32_t root_pos = 0; this->calc_Ai_zero(sigma); this->calc_LiK(sigma); @@ -293,7 +293,7 @@ secure_vector<gf2m> gf2m_decomp_rootfind_state::find_roots(const polyn_gf2m & si root_pos++; } - if(this->m_j + static_cast<u32bit>(1) == this->get_code_length()) + if(this->m_j + static_cast<uint32_t>(1) == this->get_code_length()) { break; } @@ -308,7 +308,7 @@ secure_vector<gf2m> gf2m_decomp_rootfind_state::find_roots(const polyn_gf2m & si } // end anonymous namespace -secure_vector<gf2m> find_roots_gf2m_decomp(const polyn_gf2m & polyn, u32bit code_length) +secure_vector<gf2m> find_roots_gf2m_decomp(const polyn_gf2m & polyn, uint32_t code_length) { gf2m_decomp_rootfind_state state(polyn, code_length); return state.find_roots(polyn); |