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Differential D5031 Diff 15739 src/secp256k1/src/ecmult.h

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src/secp256k1/src/ecmult.h

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typedef struct { typedef struct {
/* For accelerating the computation of a*P + b*G: */ /* For accelerating the computation of a*P + b*G: */
secp256k1_ge_storage (*pre_g)[]; /* odd multiples of the generator */ secp256k1_ge_storage (*pre_g)[]; /* odd multiples of the generator */
#ifdef USE_ENDOMORPHISM #ifdef USE_ENDOMORPHISM
secp256k1_ge_storage (*pre_g_128)[]; /* odd multiples of 2^128*generator */ secp256k1_ge_storage (*pre_g_128)[]; /* odd multiples of 2^128*generator */
#endif #endif
} secp256k1_ecmult_context; } secp256k1_ecmult_context;
static const size_t SECP256K1_ECMULT_CONTEXT_PREALLOCATED_SIZE;
static void secp256k1_ecmult_context_init(secp256k1_ecmult_context *ctx); static void secp256k1_ecmult_context_init(secp256k1_ecmult_context *ctx);
static void secp256k1_ecmult_context_build(secp256k1_ecmult_context *ctx, const secp256k1_callback *cb); static void secp256k1_ecmult_context_build(secp256k1_ecmult_context *ctx, void **prealloc);
static void secp256k1_ecmult_context_clone(secp256k1_ecmult_context *dst, static void secp256k1_ecmult_context_finalize_memcpy(secp256k1_ecmult_context *dst, const secp256k1_ecmult_context *src);
const secp256k1_ecmult_context *src, const secp256k1_callback *cb);
static void secp256k1_ecmult_context_clear(secp256k1_ecmult_context *ctx); static void secp256k1_ecmult_context_clear(secp256k1_ecmult_context *ctx);
static int secp256k1_ecmult_context_is_built(const secp256k1_ecmult_context *ctx); static int secp256k1_ecmult_context_is_built(const secp256k1_ecmult_context *ctx);
/** Double multiply: R = na*A + ng*G */ /** Double multiply: R = na*A + ng*G */
static void secp256k1_ecmult(const secp256k1_ecmult_context *ctx, secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng); static void secp256k1_ecmult(const secp256k1_ecmult_context *ctx, secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng);
typedef int (secp256k1_ecmult_multi_callback)(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *data); typedef int (secp256k1_ecmult_multi_callback)(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *data);
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