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bip32.h
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bip32.h
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/**
* Copyright (c) 2013-2014 Tomas Dzetkulic
* Copyright (c) 2013-2014 Pavol Rusnak
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __BIP32_H__
#define __BIP32_H__
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include "ecdsa.h"
#include "ed25519-donna/ed25519.h"
#include "options.h"
// Maximum length of a Base58Check-encoded extended public or private key.
#define XPUB_MAXLEN 112
// Maximum length of a Base58Check-encoded address.
#define ADDRESS_MAXLEN 39
typedef struct {
const char *bip32_name; // string for generating BIP32 xprv from seed
const ecdsa_curve *params; // ecdsa curve parameters, null for ed25519
HasherType hasher_base58;
HasherType hasher_sign;
HasherType hasher_pubkey;
HasherType hasher_script;
} curve_info;
typedef struct {
uint32_t depth;
uint32_t child_num;
uint8_t chain_code[32];
uint8_t private_key[32];
uint8_t private_key_extension[32];
uint8_t public_key[33];
const curve_info *curve;
} HDNode;
int hdnode_from_xpub(uint32_t depth, uint32_t child_num,
const uint8_t *chain_code, const uint8_t *public_key,
const char *curve, HDNode *out);
int hdnode_from_xprv(uint32_t depth, uint32_t child_num,
const uint8_t *chain_code, const uint8_t *private_key,
const char *curve, HDNode *out);
int hdnode_from_seed(const uint8_t *seed, int seed_len, const char *curve,
HDNode *out);
#define hdnode_private_ckd_prime(X, I) \
hdnode_private_ckd((X), ((I) | 0x80000000))
int hdnode_private_ckd(HDNode *inout, uint32_t i);
int hdnode_public_ckd_cp(const ecdsa_curve *curve, const curve_point *parent,
const uint8_t *parent_chain_code, uint32_t i,
curve_point *child, uint8_t *child_chain_code);
int hdnode_public_ckd(HDNode *inout, uint32_t i);
void hdnode_public_ckd_address_optimized(const curve_point *pub,
const uint8_t *chain_code, uint32_t i,
uint32_t version,
HasherType hasher_pubkey,
HasherType hasher_base58, char *addr,
int addrsize, int addrformat);
#if USE_BIP32_CACHE
void bip32_cache_clear(void);
int hdnode_private_ckd_cached(HDNode *inout, const uint32_t *i, size_t i_count,
uint32_t *fingerprint);
#endif
uint32_t hdnode_fingerprint(HDNode *node);
int hdnode_fill_public_key(HDNode *node);
#if USE_ETHEREUM
int hdnode_get_ethereum_pubkeyhash(const HDNode *node, uint8_t *pubkeyhash);
#endif
#if USE_NEM
int hdnode_get_nem_address(HDNode *node, uint8_t version, char *address);
int hdnode_get_nem_shared_key(const HDNode *node,
const ed25519_public_key peer_public_key,
const uint8_t *salt, ed25519_public_key mul,
uint8_t *shared_key);
int hdnode_nem_encrypt(const HDNode *node, const ed25519_public_key public_key,
const uint8_t *iv, const uint8_t *salt,
const uint8_t *payload, size_t size, uint8_t *buffer);
int hdnode_nem_decrypt(const HDNode *node, const ed25519_public_key public_key,
uint8_t *iv, const uint8_t *salt, const uint8_t *payload,
size_t size, uint8_t *buffer);
#endif
int hdnode_sign(HDNode *node, const uint8_t *msg, uint32_t msg_len,
HasherType hasher_sign, uint8_t *sig, uint8_t *pby,
int (*is_canonical)(uint8_t by, uint8_t sig[64]));
int hdnode_sign_digest(HDNode *node, const uint8_t *digest, uint8_t *sig,
uint8_t *pby,
int (*is_canonical)(uint8_t by, uint8_t sig[64]));
int hdnode_get_shared_key(const HDNode *node, const uint8_t *peer_public_key,
uint8_t *session_key, int *result_size);
int hdnode_serialize_public(const HDNode *node, uint32_t fingerprint,
uint32_t version, char *str, int strsize);
int hdnode_serialize_private(const HDNode *node, uint32_t fingerprint,
uint32_t version, char *str, int strsize);
int hdnode_deserialize_public(const char *str, uint32_t version,
const char *curve, HDNode *node,
uint32_t *fingerprint);
int hdnode_deserialize_private(const char *str, uint32_t version,
const char *curve, HDNode *node,
uint32_t *fingerprint);
int hdnode_get_address_raw(HDNode *node, uint32_t version, uint8_t *addr_raw);
int hdnode_get_address(HDNode *node, uint32_t version, char *addr,
int addrsize);
const curve_info *get_curve_by_name(const char *curve_name);
#endif