Michael Hamburg
9 years ago
1 changed files with 3 additions and 6 deletions
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+ 3
- 6
src/p25519/f_arithmetic.c
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| @@ -11,7 +11,7 @@ | |||||
| #include "field.h" | #include "field.h" | ||||
| #include "constant_time.h" | #include "constant_time.h" | ||||
| const gf_25519_t SQRT_MINUS_ONE = {FIELD_LITERAL( | |||||
| const gf SQRT_MINUS_ONE = {FIELD_LITERAL( | |||||
| 0x61b274a0ea0b0, | 0x61b274a0ea0b0, | ||||
| 0x0d5a5fc8f189d, | 0x0d5a5fc8f189d, | ||||
| 0x7ef5e9cbd0c60, | 0x7ef5e9cbd0c60, | ||||
| @@ -24,11 +24,8 @@ const gf MODULUS = {FIELD_LITERAL( | |||||
| )}; | )}; | ||||
| /* Guarantee: a^2 x = 0 if x = 0; else a^2 x = 1 or SQRT_MINUS_ONE; */ | /* Guarantee: a^2 x = 0 if x = 0; else a^2 x = 1 or SQRT_MINUS_ONE; */ | ||||
| void gf_isr ( | |||||
| gf_25519_t a, | |||||
| const gf_25519_t x | |||||
| ) { | |||||
| gf_25519_t st[3], tmp1, tmp2; | |||||
| void gf_isr (gf a, const gf x) { | |||||
| gf st[3], tmp1, tmp2; | |||||
| const struct { unsigned char sh, idx; } ops[] = { | const struct { unsigned char sh, idx; } ops[] = { | ||||
| {1,2},{1,2},{3,1},{6,0},{1,2},{12,1},{25,1},{25,1},{50,0},{125,0},{2,2},{1,2} | {1,2},{1,2},{3,1},{6,0},{1,2},{12,1},{25,1},{25,1},{50,0},{125,0},{2,2},{1,2} | ||||
| }; | }; | ||||