Electroneum
multiexp.h
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29 // Adapted from Python code by Sarang Noether
30 
31 #pragma once
32 
33 #ifndef MULTIEXP_H
34 #define MULTIEXP_H
35 
36 #include <vector>
37 #include "crypto/crypto.h"
38 #include "rctTypes.h"
39 #include "misc_log_ex.h"
40 
41 namespace rct
42 {
43 
44 struct MultiexpData {
47 
49  MultiexpData(const rct::key &s, const ge_p3 &p): scalar(s), point(p) {}
50  MultiexpData(const rct::key &s, const rct::key &p): scalar(s)
51  {
52  CHECK_AND_ASSERT_THROW_MES(ge_frombytes_vartime(&point, p.bytes) == 0, "ge_frombytes_vartime failed");
53  }
54 };
55 
56 struct straus_cached_data;
57 struct pippenger_cached_data;
58 
59 rct::key bos_coster_heap_conv(std::vector<MultiexpData> data);
60 rct::key bos_coster_heap_conv_robust(std::vector<MultiexpData> data);
61 std::shared_ptr<straus_cached_data> straus_init_cache(const std::vector<MultiexpData> &data, size_t N =0);
62 size_t straus_get_cache_size(const std::shared_ptr<straus_cached_data> &cache);
63 rct::key straus(const std::vector<MultiexpData> &data, const std::shared_ptr<straus_cached_data> &cache = NULL, size_t STEP = 0);
64 std::shared_ptr<pippenger_cached_data> pippenger_init_cache(const std::vector<MultiexpData> &data, size_t start_offset = 0, size_t N =0);
65 size_t pippenger_get_cache_size(const std::shared_ptr<pippenger_cached_data> &cache);
66 size_t get_pippenger_c(size_t N);
67 rct::key pippenger(const std::vector<MultiexpData> &data, const std::shared_ptr<pippenger_cached_data> &cache = NULL, size_t cache_size = 0, size_t c = 0);
68 
69 }
70 
71 #endif
std::shared_ptr< straus_cached_data > straus_init_cache(const std::vector< MultiexpData > &data, size_t N=0)
#define CHECK_AND_ASSERT_THROW_MES(expr, message)
Definition: misc_log_ex.h:173
rct::key straus(const std::vector< MultiexpData > &data, const std::shared_ptr< straus_cached_data > &cache=NULL, size_t STEP=0)
rct::key bos_coster_heap_conv(std::vector< MultiexpData > data)
size_t pippenger_get_cache_size(const std::shared_ptr< pippenger_cached_data > &cache)
rct::key pippenger(const std::vector< MultiexpData > &data, const std::shared_ptr< pippenger_cached_data > &cache=NULL, size_t cache_size=0, size_t c=0)
rct::key scalar
Definition: multiexp.h:45
size_t straus_get_cache_size(const std::shared_ptr< straus_cached_data > &cache)
std::shared_ptr< pippenger_cached_data > pippenger_init_cache(const std::vector< MultiexpData > &data, size_t start_offset=0, size_t N=0)
MultiexpData(const rct::key &s, const ge_p3 &p)
Definition: multiexp.h:49
MultiexpData(const rct::key &s, const rct::key &p)
Definition: multiexp.h:50
rct::key bos_coster_heap_conv_robust(std::vector< MultiexpData > data)
unsigned char bytes[32]
Definition: rctTypes.h:86
int ge_frombytes_vartime(ge_p3 *, const unsigned char *)
size_t get_pippenger_c(size_t N)