secp256k1_surjectionproof.h

Go to the documentation of this file.

#ifndef _SECP256K1_SURJECTIONPROOF_
#define _SECP256K1_SURJECTIONPROOF_
 
#include "secp256k1_2.h"
#include "secp256k1_rangeproof.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SECP256K1_SURJECTIONPROOF_MAX_N_INPUTS 256
 
#define SECP256K1_SURJECTIONPROOF_SERIALIZATION_BYTES(n_inputs, n_used_inputs) \
    (2 + (n_inputs + 7)/8 + 32 * (1 + (n_used_inputs)))
 
#define SECP256K1_SURJECTIONPROOF_SERIALIZATION_BYTES_MAX \
    SECP256K1_SURJECTIONPROOF_SERIALIZATION_BYTES(SECP256K1_SURJECTIONPROOF_MAX_N_INPUTS, SECP256K1_SURJECTIONPROOF_MAX_N_INPUTS)
 
typedef struct {
#ifdef VERIFY
 
    int initialized;
#endif
 
    size_t n_inputs;
    unsigned char used_inputs[SECP256K1_SURJECTIONPROOF_MAX_N_INPUTS / 8];
    unsigned char data[32 * (1 + SECP256K1_SURJECTIONPROOF_MAX_N_INPUTS)];
} secp256k1_surjectionproof;
 
SECP256K1_API int secp256k1_surjectionproof_parse(
  const secp256k1_context2* ctx,
  secp256k1_surjectionproof *proof,
  const unsigned char *input,
  size_t inputlen
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
 
SECP256K1_API int secp256k1_surjectionproof_serialize(
  const secp256k1_context2* ctx,
  unsigned char *output,
  size_t *outputlen,
  const secp256k1_surjectionproof *proof
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);
 
typedef struct {
    unsigned char data[32];
} secp256k1_fixed_asset_tag;
 
SECP256K1_API size_t secp256k1_surjectionproof_n_total_inputs(
  const secp256k1_context2* ctx,
  const secp256k1_surjectionproof* proof
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_API size_t secp256k1_surjectionproof_n_used_inputs(
  const secp256k1_context2* ctx,
  const secp256k1_surjectionproof* proof
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_API size_t secp256k1_surjectionproof_serialized_size(
  const secp256k1_context2* ctx,
  const secp256k1_surjectionproof* proof
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_surjectionproof_initialize(
  const secp256k1_context2* ctx,
  secp256k1_surjectionproof* proof,
  size_t *input_index,
  const secp256k1_fixed_asset_tag* fixed_input_tags,
  const size_t n_input_tags,
  const size_t n_input_tags_to_use,
  const secp256k1_fixed_asset_tag* fixed_output_tag,
  const size_t n_max_iterations,
  const unsigned char *random_seed32
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(7);
 
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_surjectionproof_generate(
  const secp256k1_context2* ctx,
  secp256k1_surjectionproof* proof,
  const secp256k1_generator* ephemeral_input_tags,
  size_t n_ephemeral_input_tags,
  const secp256k1_generator* ephemeral_output_tag,
  size_t input_index,
  const unsigned char *input_blinding_key,
  const unsigned char *output_blinding_key
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(7) SECP256K1_ARG_NONNULL(8);
 
 
SECP256K1_API int secp256k1_surjectionproof_verify(
  const secp256k1_context2* ctx,
  const secp256k1_surjectionproof* proof,
  const secp256k1_generator* ephemeral_input_tags,
  size_t n_ephemeral_input_tags,
  const secp256k1_generator* ephemeral_output_tag
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5);
 
#ifdef __cplusplus
}
#endif
 
#endif