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Merge pull request #3079 from tmael/sp_mod

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Correct SP mod calculation
This commit is contained in:
Sean Parkinson 2020-06-26 08:38:07 +10:00 committed by GitHub
commit a10500e5a7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 17 additions and 17 deletions
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10
wolfcrypt/src/sp_c32.c
View File

@ -1851,7 +1851,7 @@ static int sp_2048_div_45(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_2048_mul_d_45(t2, sd, r1);
sp_2048_sub_45(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 45U);
for (i=0; i<43; i++) {
for (i=0; i<44; i++) {
r[i+1] += r[i] >> 23;
r[i] &= 0x7fffff;
}
@ -2802,7 +2802,7 @@ static int sp_2048_div_90(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_2048_mul_d_90(t2, sd, r1);
sp_2048_sub_90(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 90U);
for (i=0; i<88; i++) {
for (i=0; i<89; i++) {
r[i+1] += r[i] >> 23;
r[i] &= 0x7fffff;
}
@ -6679,7 +6679,7 @@ static int sp_3072_div_134(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_3072_mul_d_134(t2, sd, r1);
sp_3072_sub_134(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 134U);
for (i=0; i<132; i++) {
for (i=0; i<133; i++) {
r[i+1] += r[i] >> 23;
r[i] &= 0x7fffff;
}
@ -9756,7 +9756,7 @@ static int sp_4096_div_98(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_4096_mul_d_98(t2, sd, r1);
sp_4096_sub_98(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 98U);
for (i=0; i<96; i++) {
for (i=0; i<97; i++) {
r[i+1] += r[i] >> 21;
r[i] &= 0x1fffff;
}
@ -10720,7 +10720,7 @@ static int sp_4096_div_196(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_4096_mul_d_196(t2, sd, r1);
sp_4096_sub_196(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 196U);
for (i=0; i<194; i++) {
for (i=0; i<195; i++) {
r[i+1] += r[i] >> 21;
r[i] &= 0x1fffff;
}

4
wolfcrypt/src/sp_c64.c
View File

@ -9977,7 +9977,7 @@ static int sp_4096_div_39(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_4096_mul_d_39(t2, sd, r1);
sp_4096_sub_39(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 39U);
for (i=0; i<37; i++) {
for (i=0; i<38; i++) {
r[i+1] += r[i] >> 53;
r[i] &= 0x1fffffffffffffL;
}
@ -10989,7 +10989,7 @@ static int sp_4096_div_78(const sp_digit* a, const sp_digit* d, sp_digit* m,
sp_4096_mul_d_78(t2, sd, r1);
sp_4096_sub_78(t1, t1, t2);
XMEMCPY(r, t1, sizeof(*r) * 2U * 78U);
for (i=0; i<76; i++) {
for (i=0; i<77; i++) {
r[i+1] += r[i] >> 53;
r[i] &= 0x1fffffffffffffL;
}

20
wolfcrypt/src/sp_x86_64.c
View File

@ -320,7 +320,7 @@ extern int64_t sp_2048_cmp_16(const sp_digit* a, const sp_digit* b);
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -850,7 +850,7 @@ extern int64_t sp_2048_cmp_32(const sp_digit* a, const sp_digit* b);
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -922,7 +922,7 @@ extern sp_digit sp_2048_sub_32(sp_digit* r, const sp_digit* a, const sp_digit* b
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -2516,7 +2516,7 @@ extern int64_t sp_3072_cmp_24(const sp_digit* a, const sp_digit* b);
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -3046,7 +3046,7 @@ extern int64_t sp_3072_cmp_48(const sp_digit* a, const sp_digit* b);
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -3118,7 +3118,7 @@ extern sp_digit sp_3072_sub_48(sp_digit* r, const sp_digit* a, const sp_digit* b
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -4690,7 +4690,7 @@ extern int64_t sp_4096_cmp_64(const sp_digit* a, const sp_digit* b);
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -4762,7 +4762,7 @@ extern sp_digit sp_4096_sub_64(sp_digit* r, const sp_digit* a, const sp_digit* b
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -22495,7 +22495,7 @@ static void sp_256_mask_4(sp_digit* r, const sp_digit* a, sp_digit m)
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.
@ -28352,7 +28352,7 @@ static void sp_384_mask_6(sp_digit* r, const sp_digit* a, sp_digit m)
/* Divide d in a and put remainder into r (m*d + r = a)
* m is not calculated as it is not needed at this time.
*
* a Nmber to be divided.
* a Number to be divided.
* d Number to divide with.
* m Multiplier result.
* r Remainder from the division.