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-rw-r--r--src/device/device_ledger.cpp152
-rw-r--r--src/device/device_ledger.hpp5
2 files changed, 157 insertions, 0 deletions
diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp
index c59b648bd..4e89f835d 100644
--- a/src/device/device_ledger.cpp
+++ b/src/device/device_ledger.cpp
@@ -299,6 +299,7 @@ namespace hw {
#define INS_PREFIX_HASH 0x7D
#define INS_VALIDATE 0x7C
#define INS_MLSAG 0x7E
+ #define INS_CLSAG 0x7F
#define INS_CLOSE_TX 0x80
#define INS_GET_TX_PROOF 0xA0
@@ -2121,6 +2122,157 @@ namespace hw {
return true;
}
+ bool device_ledger::clsag_prepare(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 &aH) {
+ AUTO_LOCK_CMD();
+ #ifdef DEBUG_HWDEVICE
+ const rct::key p_x = hw::ledger::decrypt(p);
+ const rct::key z_x = hw::ledger::decrypt(z);
+ rct::key I_x;
+ rct::key D_x;
+ const rct::key H_x = H;
+ rct::key a_x;
+ rct::key aG_x;
+ rct::key aH_x;
+ this->controle_device->clsag_prepare(p_x, z_x, I_x, D_x, H_x, a_x, aG_x, aH_x);
+ #endif
+
+ /*
+ 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
+ */
+ int offset = set_command_header_noopt(INS_CLSAG, 0x01);
+ //p
+ this->send_secret(p.bytes, offset);
+ //z
+ this->send_secret(z.bytes, offset);
+ //H
+ memmove(this->buffer_send+offset, H.bytes, 32);
+ offset += 32;
+
+ this->buffer_send[4] = offset-5;
+ this->length_send = offset;
+ this->exchange();
+
+ offset = 0;
+ //a
+ this->receive_secret(a.bytes, offset);
+ //aG
+ memmove(aG.bytes, this->buffer_recv+offset, 32);
+ offset +=32;
+ //aH
+ memmove(aH.bytes, this->buffer_recv+offset, 32);
+ offset +=32;
+ //I = pH
+ memmove(I.bytes, this->buffer_recv+offset, 32);
+ offset +=32;
+ //D = zH
+ memmove(D.bytes, this->buffer_recv+offset, 32);
+ offset +=32;
+
+ #ifdef DEBUG_HWDEVICE
+ hw::ledger::check32("clsag_prepare", "I", (char*)I_x.bytes, (char*)I.bytes);
+ hw::ledger::check32("clsag_prepare", "D", (char*)D_x.bytes, (char*)D.bytes);
+ hw::ledger::check32("clsag_prepare", "a", (char*)a_x.bytes, (char*)a.bytes);
+ hw::ledger::check32("clsag_prepare", "aG", (char*)aG_x.bytes, (char*)aG.bytes);
+ hw::ledger::check32("clsag_prepare", "aH", (char*)aH_x.bytes, (char*)aH.bytes);
+ #endif
+
+ return true;
+ }
+
+ bool device_ledger::clsag_hash(const rct::keyV &data, rct::key &hash) {
+ AUTO_LOCK_CMD();
+
+ #ifdef DEBUG_HWDEVICE
+ const rct::keyV data_x = data;
+ rct::key hash_x;
+ this->controle_device->mlsag_hash(data_x, hash_x);
+ #endif
+
+ size_t cnt;
+ int offset;
+
+ cnt = data.size();
+ for (size_t i = 0; i<cnt; i++) {
+ offset = set_command_header(INS_CLSAG, 0x02, i+1);
+ //options
+ this->buffer_send[offset] = (i==(cnt-1))?0x00:0x80; //last
+ offset += 1;
+ //msg part
+ memmove(this->buffer_send+offset, data[i].bytes, 32);
+ offset += 32;
+
+ this->buffer_send[4] = offset-5;
+ this->length_send = offset;
+ this->exchange();
+ }
+
+ //c/hash
+ memmove(hash.bytes, &this->buffer_recv[0], 32);
+
+ #ifdef DEBUG_HWDEVICE
+ hw::ledger::check32("mlsag_hash", "hash", (char*)hash_x.bytes, (char*)hash.bytes);
+ #endif
+ return true;
+ }
+
+ bool device_ledger::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) {
+ AUTO_LOCK_CMD();
+
+ #ifdef DEBUG_HWDEVICE
+ const rct::key c_x = c;
+ const rct::key a_x = hw::ledger::decrypt(a);
+ const rct::key p_x = hw::ledger::decrypt(p);
+ const rct::key z_x = hw::ledger::decrypt(z);
+ const rct::key mu_P_x = mu_P;
+ const rct::key mu_C_x = mu_C;
+ rct::key s_x;
+ this->controle_device->clsag_sign(c_x, a_x, p_x, z_x, mu_P_x, mu_C_x, s_x);
+ #endif
+
+ /*
+ 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);
+ */
+
+ int offset = set_command_header_noopt(INS_CLSAG, 0x03);
+
+ //c
+ //discard, unse internal one
+ //a
+ this->send_secret(a.bytes, offset);
+ //p
+ this->send_secret(p.bytes, offset);
+ //z
+ this->send_secret(z.bytes, offset);
+ //mu_P
+ memmove(this->buffer_send+offset, mu_P.bytes, 32);
+ offset += 32;
+ //mu_C
+ memmove(this->buffer_send+offset, mu_C.bytes, 32);
+ offset += 32;
+
+ this->buffer_send[4] = offset-5;
+ this->length_send = offset;
+ this->exchange();
+
+ offset = 0;
+ //s
+ memmove(s.bytes, this->buffer_recv+offset, 32);
+
+ #ifdef DEBUG_HWDEVICE
+ hw::ledger::check32("clsag_sign", "s", (char*)s_x.bytes, (char*)s.bytes);
+ #endif
+
+ return true;
+ }
+
+
bool device_ledger::close_tx() {
AUTO_LOCK_CMD();
send_simple(INS_CLOSE_TX);
diff --git a/src/device/device_ledger.hpp b/src/device/device_ledger.hpp
index 4036035c8..d3ec08288 100644
--- a/src/device/device_ledger.hpp
+++ b/src/device/device_ledger.hpp
@@ -297,6 +297,11 @@ namespace hw {
bool mlsag_hash(const rct::keyV &long_message, rct::key &c) override;
bool mlsag_sign( const rct::key &c, const rct::keyV &xx, const rct::keyV &alpha, const size_t rows, const size_t dsRows, rct::keyV &ss) override;
+ bool clsag_prepare(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 &aH) override;
+ bool clsag_hash(const rct::keyV &data, rct::key &hash) override;
+ bool 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) override;
+
+
bool close_tx(void) override;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 14:21:11 +0000