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authorluigi1111 <luigi1111w@gmail.com>2023-01-11 11:45:40 -0500
committerluigi1111 <luigi1111w@gmail.com>2023-01-11 11:45:40 -0500
commit3854cc04be5cbf0ae932727a75003d199f0899c3 (patch)
tree57ca5a963617e3ec55982d86c2c8599e0057a712
parentMerge pull request #8653 (diff)
parentmiscellaneous crypto updates (diff)
downloadmonero-3854cc04be5cbf0ae932727a75003d199f0899c3.tar.xz
Merge pull request #8663
b1bce85 miscellaneous crypto updates (koe)
-rw-r--r--src/crypto/crypto-ops.c5
-rw-r--r--src/crypto/crypto-ops.h4
-rw-r--r--src/crypto/crypto.h8
-rw-r--r--src/ringct/rctOps.cpp6
-rw-r--r--src/ringct/rctOps.h1
5 files changed, 18 insertions, 6 deletions
diff --git a/src/crypto/crypto-ops.c b/src/crypto/crypto-ops.c
index 4b392d472..971bf663f 100644
--- a/src/crypto/crypto-ops.c
+++ b/src/crypto/crypto-ops.c
@@ -38,7 +38,6 @@ DISABLE_VS_WARNINGS(4146 4244)
/* Predeclarations */
-static void fe_mul(fe, const fe, const fe);
static void fe_sq(fe, const fe);
static void ge_madd(ge_p1p1 *, const ge_p3 *, const ge_precomp *);
static void ge_msub(ge_p1p1 *, const ge_p3 *, const ge_precomp *);
@@ -72,7 +71,7 @@ uint64_t load_4(const unsigned char *in)
h = 0
*/
-static void fe_0(fe h) {
+void fe_0(fe h) {
h[0] = 0;
h[1] = 0;
h[2] = 0;
@@ -375,7 +374,7 @@ Can get away with 11 carries, but then data flow is much deeper.
With tighter constraints on inputs can squeeze carries into int32.
*/
-static void fe_mul(fe h, const fe f, const fe g) {
+void fe_mul(fe h, const fe f, const fe g) {
int32_t f0 = f[0];
int32_t f1 = f[1];
int32_t f2 = f[2];
diff --git a/src/crypto/crypto-ops.h b/src/crypto/crypto-ops.h
index e4901e080..7a6f0789a 100644
--- a/src/crypto/crypto-ops.h
+++ b/src/crypto/crypto-ops.h
@@ -30,6 +30,8 @@
#pragma once
+#include <stdint.h>
+
/* From fe.h */
typedef int32_t fe[10];
@@ -161,5 +163,7 @@ void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q);
void fe_add(fe h, const fe f, const fe g);
void fe_tobytes(unsigned char *, const fe);
void fe_invert(fe out, const fe z);
+void fe_mul(fe out, const fe, const fe);
+void fe_0(fe h);
int ge_p3_is_point_at_infinity_vartime(const ge_p3 *p);
diff --git a/src/crypto/crypto.h b/src/crypto/crypto.h
index d8cd6c6a0..43ea59ac6 100644
--- a/src/crypto/crypto.h
+++ b/src/crypto/crypto.h
@@ -335,8 +335,16 @@ namespace crypto {
inline bool operator<(const public_key &p1, const public_key &p2) { return memcmp(&p1, &p2, sizeof(public_key)) < 0; }
inline bool operator>(const public_key &p1, const public_key &p2) { return p2 < p1; }
+ inline bool operator<(const key_image &p1, const key_image &p2) { return memcmp(&p1, &p2, sizeof(key_image)) < 0; }
+ inline bool operator>(const key_image &p1, const key_image &p2) { return p2 < p1; }
}
+// type conversions for easier calls to sc_add(), sc_sub(), hash functions
+inline unsigned char* to_bytes(crypto::ec_scalar &scalar) { return &reinterpret_cast<unsigned char&>(scalar); }
+inline const unsigned char* to_bytes(const crypto::ec_scalar &scalar) { return &reinterpret_cast<const unsigned char&>(scalar); }
+inline unsigned char* to_bytes(crypto::ec_point &point) { return &reinterpret_cast<unsigned char&>(point); }
+inline const unsigned char* to_bytes(const crypto::ec_point &point) { return &reinterpret_cast<const unsigned char&>(point); }
+
CRYPTO_MAKE_HASHABLE(public_key)
CRYPTO_MAKE_HASHABLE_CONSTANT_TIME(secret_key)
CRYPTO_MAKE_HASHABLE_CONSTANT_TIME(public_key_memsafe)
diff --git a/src/ringct/rctOps.cpp b/src/ringct/rctOps.cpp
index 245a3f477..5b039d907 100644
--- a/src/ringct/rctOps.cpp
+++ b/src/ringct/rctOps.cpp
@@ -671,7 +671,7 @@ namespace rct {
//Elliptic Curve Diffie Helman: encodes and decodes the amount b and mask a
// where C= aG + bH
- static key ecdhHash(const key &k)
+ key genAmountEncodingFactor(const key &k)
{
char data[38];
rct::key hash;
@@ -700,7 +700,7 @@ namespace rct {
if (v2)
{
unmasked.mask = zero();
- xor8(unmasked.amount, ecdhHash(sharedSec));
+ xor8(unmasked.amount, genAmountEncodingFactor(sharedSec));
}
else
{
@@ -715,7 +715,7 @@ namespace rct {
if (v2)
{
masked.mask = genCommitmentMask(sharedSec);
- xor8(masked.amount, ecdhHash(sharedSec));
+ xor8(masked.amount, genAmountEncodingFactor(sharedSec));
}
else
{
diff --git a/src/ringct/rctOps.h b/src/ringct/rctOps.h
index 679ed1441..da0013ee1 100644
--- a/src/ringct/rctOps.h
+++ b/src/ringct/rctOps.h
@@ -184,6 +184,7 @@ namespace rct {
//Elliptic Curve Diffie Helman: encodes and decodes the amount b and mask a
// where C= aG + bH
+ key genAmountEncodingFactor(const key &k);
key genCommitmentMask(const key &sk);
void ecdhEncode(ecdhTuple & unmasked, const key & sharedSec, bool v2);
void ecdhDecode(ecdhTuple & masked, const key & sharedSec, bool v2);