libdecaf
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Field-specific code for 2^255 - 19. More...
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Classes | |
struct | gf_25519_s |
Macros | |
#define | __DECAF_25519_GF_DEFINED__ 1 |
#define | NLIMBS (40/sizeof(word_t)) |
#define | SER_BYTES 32 |
#define | GF_LIT_LIMB_BITS 51 |
#define | GF_BITS 255 |
#define | ZERO gf_25519_ZERO |
#define | ONE gf_25519_ONE |
#define | MODULUS gf_25519_MODULUS |
#define | gf gf_25519_t |
#define | gf_s gf_25519_s |
#define | gf_eq gf_25519_eq |
#define | gf_lobit gf_25519_lobit |
#define | gf_copy gf_25519_copy |
#define | gf_add gf_25519_add |
#define | gf_sub gf_25519_sub |
#define | gf_add_RAW gf_25519_add_RAW |
#define | gf_sub_RAW gf_25519_sub_RAW |
#define | gf_bias gf_25519_bias |
#define | gf_weak_reduce gf_25519_weak_reduce |
#define | gf_strong_reduce gf_25519_strong_reduce |
#define | gf_mul gf_25519_mul |
#define | gf_sqr gf_25519_sqr |
#define | gf_mulw_unsigned gf_25519_mulw_unsigned |
#define | gf_isr gf_25519_isr |
#define | gf_serialize gf_25519_serialize |
#define | gf_deserialize gf_25519_deserialize |
#define | X_PUBLIC_BYTES SER_BYTES |
#define | X_PRIVATE_BYTES X_PUBLIC_BYTES |
#define | X_PRIVATE_BITS 255 |
#define | SQRT_MINUS_ONE P25519_SQRT_MINUS_ONE /* might not be defined */ |
#define | INLINE_UNUSED __inline__ __attribute__((unused,always_inline)) |
#define | P_MOD_8 5 |
#define | LIMBPERM(i) (i) |
#define | LIMB_MASK(i) (((1ull)<<LIMB_PLACE_VALUE(i))-1) |
Typedefs | |
typedef struct gf_25519_s | gf_25519_s |
typedef struct gf_25519_s | gf_25519_t[1] |
Functions | |
void | gf_strong_reduce (gf inout) |
Reduce to canonical form. | |
void | gf_add (gf out, const gf a, const gf b) |
Add two field elements d = a+b. | |
void | gf_sub (gf out, const gf a, const gf b) |
Subtract two gf elements d=a-b. | |
void | gf_mul (gf_s *__restrict__ out, const gf a, const gf b) |
void | gf_mulw_unsigned (gf_s *__restrict__ out, const gf a, uint32_t b) |
void | gf_sqr (gf_s *__restrict__ out, const gf a) |
mask_t | gf_isr (gf a, const gf x) |
mask_t | gf_eq (const gf x, const gf y) |
a^2 x = 1, QNR, or 0 if x=0. More... | |
mask_t | gf_lobit (const gf x) |
Return high bit of x = low bit of 2x mod p. | |
void | gf_serialize (uint8_t serial[SER_BYTES], const gf x) |
Serialize to wire format. | |
mask_t | gf_deserialize (gf x, const uint8_t serial[SER_BYTES], uint8_t hi_nmask) |
Deserialize from wire format; return -1 on success and 0 on failure. | |
Variables | |
const gf | SQRT_MINUS_ONE |
Field-specific code for 2^255 - 19.
mask_t gf_eq | ( | const gf | a, |
const gf | b | ||
) |
a^2 x = 1, QNR, or 0 if x=0.
Return true if successful
a^2 x = 1, QNR, or 0 if x=0.