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Differential D4971 Diff 15562 src/secp256k1/src/secp256k1.c

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src/secp256k1/src/secp256k1.c

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struct secp256k1_context_struct { struct secp256k1_context_struct {
secp256k1_ecmult_context ecmult_ctx; secp256k1_ecmult_context ecmult_ctx;
secp256k1_ecmult_gen_context ecmult_gen_ctx; secp256k1_ecmult_gen_context ecmult_gen_ctx;
secp256k1_callback illegal_callback; secp256k1_callback illegal_callback;
secp256k1_callback error_callback; secp256k1_callback error_callback;
}; };
static const secp256k1_context secp256k1_context_no_precomp_ = {
{ 0 },
{ 0 },
{ default_illegal_callback_fn, 0 },
{ default_error_callback_fn, 0 }
};
const secp256k1_context *secp256k1_context_no_precomp = &secp256k1_context_no_precomp_;
secp256k1_context* secp256k1_context_create(unsigned int flags) { secp256k1_context* secp256k1_context_create(unsigned int flags) {
secp256k1_context* ret = (secp256k1_context*)checked_malloc(&default_error_callback, sizeof(secp256k1_context)); secp256k1_context* ret = (secp256k1_context*)checked_malloc(&default_error_callback, sizeof(secp256k1_context));
ret->illegal_callback = default_illegal_callback; ret->illegal_callback = default_illegal_callback;
ret->error_callback = default_error_callback; ret->error_callback = default_error_callback;
if (EXPECT((flags & SECP256K1_FLAGS_TYPE_MASK) != SECP256K1_FLAGS_TYPE_CONTEXT, 0)) { if (EXPECT((flags & SECP256K1_FLAGS_TYPE_MASK) != SECP256K1_FLAGS_TYPE_CONTEXT, 0)) {
secp256k1_callback_call(&ret->illegal_callback, secp256k1_callback_call(&ret->illegal_callback,
"Invalid flags"); "Invalid flags");
Show All 19 Linessecp256k1_context* secp256k1_context_clone(const secp256k1_context* ctx) {
ret->illegal_callback = ctx->illegal_callback; ret->illegal_callback = ctx->illegal_callback;
ret->error_callback = ctx->error_callback; ret->error_callback = ctx->error_callback;
secp256k1_ecmult_context_clone(&ret->ecmult_ctx, &ctx->ecmult_ctx, &ctx->error_callback); secp256k1_ecmult_context_clone(&ret->ecmult_ctx, &ctx->ecmult_ctx, &ctx->error_callback);
secp256k1_ecmult_gen_context_clone(&ret->ecmult_gen_ctx, &ctx->ecmult_gen_ctx, &ctx->error_callback); secp256k1_ecmult_gen_context_clone(&ret->ecmult_gen_ctx, &ctx->ecmult_gen_ctx, &ctx->error_callback);
return ret; return ret;
} }
void secp256k1_context_destroy(secp256k1_context* ctx) { void secp256k1_context_destroy(secp256k1_context* ctx) {
CHECK(ctx != secp256k1_context_no_precomp);
if (ctx != NULL) { if (ctx != NULL) {
secp256k1_ecmult_context_clear(&ctx->ecmult_ctx); secp256k1_ecmult_context_clear(&ctx->ecmult_ctx);
secp256k1_ecmult_gen_context_clear(&ctx->ecmult_gen_ctx); secp256k1_ecmult_gen_context_clear(&ctx->ecmult_gen_ctx);
free(ctx); free(ctx);
} }
} }
void secp256k1_context_set_illegal_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) { void secp256k1_context_set_illegal_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) {
CHECK(ctx != secp256k1_context_no_precomp);
if (fun == NULL) { if (fun == NULL) {
fun = default_illegal_callback_fn; fun = default_illegal_callback_fn;
} }
ctx->illegal_callback.fn = fun; ctx->illegal_callback.fn = fun;
ctx->illegal_callback.data = data; ctx->illegal_callback.data = data;
} }
void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) { void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) {
CHECK(ctx != secp256k1_context_no_precomp);
if (fun == NULL) { if (fun == NULL) {
fun = default_error_callback_fn; fun = default_error_callback_fn;
} }
ctx->error_callback.fn = fun; ctx->error_callback.fn = fun;
ctx->error_callback.data = data; ctx->error_callback.data = data;
} }
secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) {
▲ Show 20 Lines • Show All 436 Lines • ▼ Show 20 Lines if (ret) {
} }
} }
return ret; return ret;
} }
int secp256k1_context_randomize(secp256k1_context* ctx, const unsigned char *seed32) { int secp256k1_context_randomize(secp256k1_context* ctx, const unsigned char *seed32) {
VERIFY_CHECK(ctx != NULL); VERIFY_CHECK(ctx != NULL);
CHECK(ctx != secp256k1_context_no_precomp);
ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx)); ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));
secp256k1_ecmult_gen_blind(&ctx->ecmult_gen_ctx, seed32); secp256k1_ecmult_gen_blind(&ctx->ecmult_gen_ctx, seed32);
return 1; return 1;
} }
int secp256k1_ec_pubkey_combine(const secp256k1_context* ctx, secp256k1_pubkey *pubnonce, const secp256k1_pubkey * const *pubnonces, size_t n) { int secp256k1_ec_pubkey_combine(const secp256k1_context* ctx, secp256k1_pubkey *pubnonce, const secp256k1_pubkey * const *pubnonces, size_t n) {
size_t i; size_t i;
secp256k1_gej Qj; secp256k1_gej Qj;
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