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initial clsag implementation for carrot

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This commit is contained in:
akildemir
2025-05-28 17:50:16 +03:00
parent a3a05a24e4
commit 3878e389fe
10 changed files with 390 additions and 8 deletions
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src/device/device_default.cpp
+17 -2
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@@ -33,6 +33,7 @@
#include "device_default.hpp"
#include "int-util.h"
#include "crypto/wallet/crypto.h"
#include "crypto/generators.h"
#include "cryptonote_basic/account.h"
#include "cryptonote_basic/subaddress_index.h"
#include "cryptonote_core/cryptonote_tx_utils.h"
@@ -424,6 +425,19 @@ namespace hw {
return true;
}
bool device_default::clsag_prepare_carrot(const rct::key &p, const rct::key &z, rct::key &I, rct::key &D, const rct::key &H, rct::key &a, rct::key &aG, rct::key &b, rct::key &bT, rct::key &aH) {
rct::skpkGen(a,aG); // aG = a*G
rct::scalarmultKey(aH,H,a); // aH = a*H
rct::scalarmultKey(I,H,p); // I = p*H
rct::scalarmultKey(D,H,z); // D = z*H
// bT = b*T
rct::skGen(b);
bT = rct::scalarmultKey(b, rct::pk2rct(crypto::get_T()));
return true;
}
bool device_default::clsag_hash(const rct::keyV &data, rct::key &hash) {
hash = rct::hash_to_scalar(data);
return true;
@@ -432,9 +446,10 @@ namespace hw {
bool device_default::clsag_sign(const rct::key &c, const rct::key &a, const rct::key &p, const rct::key &z, const rct::key &mu_P, const rct::key &mu_C, rct::key &s) {
rct::key s0_p_mu_P;
sc_mul(s0_p_mu_P.bytes,mu_P.bytes,p.bytes);
rct::key s0_add_z_mu_C;
sc_muladd(s0_add_z_mu_C.bytes,mu_C.bytes,z.bytes,s0_p_mu_P.bytes);
sc_mulsub(s.bytes,c.bytes,s0_add_z_mu_C.bytes,a.bytes);
sc_muladd(s0_add_z_mu_C.bytes, mu_C.bytes, z.bytes, s0_p_mu_P.bytes);
sc_mulsub(s.bytes, c.bytes, s0_add_z_mu_C.bytes, a.bytes);
return true;
}