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-rw-r--r--src/device/device.hpp4
-rw-r--r--src/device/device_default.cpp23
-rw-r--r--src/device/device_default.hpp4
3 files changed, 31 insertions, 0 deletions
diff --git a/src/device/device.hpp b/src/device/device.hpp
index ef973c9f4..582eb2242 100644
--- a/src/device/device.hpp
+++ b/src/device/device.hpp
@@ -231,6 +231,10 @@ namespace hw {
virtual bool mlsag_hash(const rct::keyV &long_message, rct::key &c) = 0;
virtual 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) = 0;
+ virtual 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) = 0;
+ virtual bool clsag_hash(const rct::keyV &data, rct::key &hash) = 0;
+ virtual 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) = 0;
+
virtual bool close_tx(void) = 0;
virtual bool has_ki_cold_sync(void) const { return false; }
diff --git a/src/device/device_default.cpp b/src/device/device_default.cpp
index 096cb35ba..145197212 100644
--- a/src/device/device_default.cpp
+++ b/src/device/device_default.cpp
@@ -402,6 +402,29 @@ namespace hw {
return true;
}
+ bool device_default::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) {
+ 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
+ return true;
+ }
+
+ bool device_default::clsag_hash(const rct::keyV &data, rct::key &hash) {
+ hash = rct::hash_to_scalar(data);
+ return true;
+ }
+
+ 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);
+
+ return true;
+ }
+
bool device_default::close_tx() {
return true;
}
diff --git a/src/device/device_default.hpp b/src/device/device_default.hpp
index bdd99f89c..2493bd67d 100644
--- a/src/device/device_default.hpp
+++ b/src/device/device_default.hpp
@@ -134,6 +134,10 @@ 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;
};