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-rw-r--r--src/crypto/curve25519-x86_64.h46
1 files changed, 22 insertions, 24 deletions
diff --git a/src/crypto/curve25519-x86_64.h b/src/crypto/curve25519-x86_64.h
index 768ffa9..35e9c78 100644
--- a/src/crypto/curve25519-x86_64.h
+++ b/src/crypto/curve25519-x86_64.h
@@ -345,7 +345,7 @@ __aligned(32) static const u64 table_ladder_8k[252 * NUM_WORDS_ELTFP25519] = {
* a is two 256-bit integers: a0[0:3] and a1[4:7]
* b is two 256-bit integers: b0[0:3] and b1[4:7]
*/
-static void mul2_256x256_integer_adx(u64 *const c, u64 *const a, u64 *const b)
+static void mul2_256x256_integer_adx(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"xorl %%r14d, %%r14d ;"
@@ -494,7 +494,7 @@ static void mul2_256x256_integer_adx(u64 *const c, u64 *const a, u64 *const b)
: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14");
}
-static void mul2_256x256_integer_bmi2(u64 *const c, u64 *const a, u64 *const b)
+static void mul2_256x256_integer_bmi2(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"movq (%1), %%rdx; " /* A[0] */
@@ -641,7 +641,7 @@ static void mul2_256x256_integer_bmi2(u64 *const c, u64 *const a, u64 *const b)
: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13");
}
-static void sqr2_256x256_integer_adx(u64 *const c, u64 *const a)
+static void sqr2_256x256_integer_adx(u64 *const c, const u64 *const a)
{
asm volatile(
"movq (%1), %%rdx ;" /* A[0] */
@@ -765,7 +765,7 @@ static void sqr2_256x256_integer_adx(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15");
}
-static void sqr2_256x256_integer_bmi2(u64 *const c, u64 *const a)
+static void sqr2_256x256_integer_bmi2(u64 *const c, const u64 *const a)
{
asm volatile(
"movq 8(%1), %%rdx ;" /* A[1] */
@@ -890,7 +890,7 @@ static void sqr2_256x256_integer_bmi2(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14");
}
-void red_eltfp25519_2w_adx(u64 *const c, u64 *const a)
+void red_eltfp25519_2w_adx(u64 *const c, const u64 *const a)
{
asm volatile(
"movl $38, %%edx; " /* 2*c = 38 = 2^256 */
@@ -956,7 +956,7 @@ void red_eltfp25519_2w_adx(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11");
}
-void red_eltfp25519_2w_bmi2(u64 *const c, u64 *const a)
+void red_eltfp25519_2w_bmi2(u64 *const c, const u64 *const a)
{
asm volatile(
"movl $38, %%edx ; " /* 2*c = 38 = 2^256 */
@@ -1018,7 +1018,7 @@ void red_eltfp25519_2w_bmi2(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11");
}
-static void mul_256x256_integer_adx(u64 *const c, u64 *const a, u64 *const b)
+static void mul_256x256_integer_adx(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"movq (%1), %%rdx; " /* A[0] */
@@ -1106,7 +1106,7 @@ static void mul_256x256_integer_adx(u64 *const c, u64 *const a, u64 *const b)
: "memory", "cc", "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14");
}
-static void mul_256x256_integer_bmi2(u64 *const c, u64 *const a, u64 *const b)
+static void mul_256x256_integer_bmi2(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"movq (%1), %%rdx; " /* A[0] */
@@ -1183,7 +1183,7 @@ static void mul_256x256_integer_bmi2(u64 *const c, u64 *const a, u64 *const b)
: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13");
}
-static void sqr_256x256_integer_adx(u64 *const c, u64 *const a)
+static void sqr_256x256_integer_adx(u64 *const c, const u64 *const a)
{
asm volatile(
"movq (%1), %%rdx ;" /* A[0] */
@@ -1248,7 +1248,7 @@ static void sqr_256x256_integer_adx(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15");
}
-static void sqr_256x256_integer_bmi2(u64 *const c, u64 *const a)
+static void sqr_256x256_integer_bmi2(u64 *const c, const u64 *const a)
{
asm volatile(
"movq 8(%1), %%rdx ;" /* A[1] */
@@ -1314,7 +1314,7 @@ static void sqr_256x256_integer_bmi2(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14");
}
-static void red_eltfp25519_1w_adx(u64 *const c, u64 *const a)
+static void red_eltfp25519_1w_adx(u64 *const c, const u64 *const a)
{
asm volatile(
"movl $38, %%edx ;" /* 2*c = 38 = 2^256 */
@@ -1351,7 +1351,7 @@ static void red_eltfp25519_1w_adx(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11");
}
-static void red_eltfp25519_1w_bmi2(u64 *const c, u64 *const a)
+static void red_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a)
{
asm volatile(
"movl $38, %%edx ;" /* 2*c = 38 = 2^256 */
@@ -1386,7 +1386,7 @@ static void red_eltfp25519_1w_bmi2(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11");
}
-static __always_inline void add_eltfp25519_1w_adx(u64 *const c, u64 *const a, u64 *const b)
+static __always_inline void add_eltfp25519_1w_adx(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"mov $38, %%eax ;"
@@ -1417,7 +1417,7 @@ static __always_inline void add_eltfp25519_1w_adx(u64 *const c, u64 *const a, u6
: "memory", "cc", "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11");
}
-static __always_inline void add_eltfp25519_1w_bmi2(u64 *const c, u64 *const a, u64 *const b)
+static __always_inline void add_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"mov $38, %%eax ;"
@@ -1447,7 +1447,7 @@ static __always_inline void add_eltfp25519_1w_bmi2(u64 *const c, u64 *const a, u
: "memory", "cc", "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11");
}
-static __always_inline void sub_eltfp25519_1w(u64 *const c, u64 *const a, u64 *const b)
+static __always_inline void sub_eltfp25519_1w(u64 *const c, const u64 *const a, const u64 *const b)
{
asm volatile(
"mov $38, %%eax ;"
@@ -1478,7 +1478,7 @@ static __always_inline void sub_eltfp25519_1w(u64 *const c, u64 *const a, u64 *c
}
/* Multiplication by a24 = (A+2)/4 = (486662+2)/4 = 121666 */
-static __always_inline void mul_a24_eltfp25519_1w(u64 *const c, u64 *const a)
+static __always_inline void mul_a24_eltfp25519_1w(u64 *const c, const u64 *const a)
{
const u64 a24 = 121666;
asm volatile(
@@ -1510,19 +1510,18 @@ static __always_inline void mul_a24_eltfp25519_1w(u64 *const c, u64 *const a)
: "memory", "cc", "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11");
}
-static void inv_eltfp25519_1w_adx(u64 *const c, u64 *const a)
+static void inv_eltfp25519_1w_adx(u64 *const c, const u64 *const a)
{
struct {
eltfp25519_1w_buffer buffer;
eltfp25519_1w x0, x1, x2;
} __aligned(32) m;
- u64 *T[5];
+ u64 *T[4];
T[0] = m.x0;
T[1] = c; /* x^(-1) */
T[2] = m.x1;
T[3] = m.x2;
- T[4] = a; /* x */
copy_eltfp25519_1w(T[1], a);
sqrn_eltfp25519_1w_adx(T[1], 1);
@@ -1558,7 +1557,7 @@ static void inv_eltfp25519_1w_adx(u64 *const c, u64 *const a)
memzero_explicit(&m, sizeof(m));
}
-static void inv_eltfp25519_1w_bmi2(u64 *const c, u64 *const a)
+static void inv_eltfp25519_1w_bmi2(u64 *const c, const u64 *const a)
{
struct {
eltfp25519_1w_buffer buffer;
@@ -1570,7 +1569,6 @@ static void inv_eltfp25519_1w_bmi2(u64 *const c, u64 *const a)
T[1] = c; /* x^(-1) */
T[2] = m.x1;
T[3] = m.x2;
- T[4] = a; /* x */
copy_eltfp25519_1w(T[1], a);
sqrn_eltfp25519_1w_bmi2(T[1], 1);
@@ -1680,7 +1678,7 @@ static __always_inline void cswap(u8 bit, u64 *const px, u64 *const py)
);
}
-static __always_inline void cselect(u8 bit, u64 *const px, u64 *const py)
+static __always_inline void cselect(u8 bit, u64 *const px, const u64 *const py)
{
asm volatile(
"test %4, %4 ;"
@@ -1824,7 +1822,7 @@ static void curve25519_adx_base(u8 session_key[CURVE25519_POINT_SIZE], const u8
u64 *const AB = m.workspace + 0;
u64 *const CD = m.workspace + 8;
- u64 *P = (u64 *)table_ladder_8k;
+ const u64 *const P = table_ladder_8k;
memcpy(m.private, private_key, sizeof(m.private));
@@ -2016,7 +2014,7 @@ static void curve25519_bmi2_base(u8 session_key[CURVE25519_POINT_SIZE], const u8
u64 *const AB = m.workspace + 0;
u64 *const CD = m.workspace + 8;
- u64 *P = (u64 *)table_ladder_8k;
+ const u64 *const P = table_ladder_8k;
memcpy(m.private, private_key, sizeof(m.private));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 10:27:56 +0000