mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 03:30:02 +00:00
117 lines
4.2 KiB
C
117 lines
4.2 KiB
C
/* Copyright (c) 2017, 2021 Pieter Wuille
|
|
*
|
|
* 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 _SEGWIT_ADDR_H_
|
|
#define _SEGWIT_ADDR_H_ 1
|
|
|
|
#include <stdint.h>
|
|
|
|
// The maximum length of the Bech32 human-readable part according to BIP-173.
|
|
#define BECH32_MAX_HRP_LEN 83
|
|
|
|
|
|
/** Encode a SegWit address
|
|
*
|
|
* Out: output: Pointer to a buffer of size 73 + strlen(hrp) that will be
|
|
* updated to contain the null-terminated address.
|
|
* In: hrp: Pointer to the null-terminated human readable part to use
|
|
* (chain/network specific).
|
|
* ver: Version of the witness program (between 0 and 16 inclusive).
|
|
* prog: Data bytes for the witness program (between 2 and 40 bytes).
|
|
* prog_len: Number of data bytes in prog.
|
|
* Returns 1 if successful.
|
|
*/
|
|
int segwit_addr_encode(
|
|
char *output,
|
|
const char *hrp,
|
|
int ver,
|
|
const uint8_t *prog,
|
|
size_t prog_len
|
|
);
|
|
|
|
/** Decode a SegWit address
|
|
*
|
|
* Out: ver: Pointer to an int that will be updated to contain the witness
|
|
* program version (between 0 and 16 inclusive).
|
|
* prog: Pointer to a buffer of size 40 that will be updated to
|
|
* contain the witness program bytes.
|
|
* prog_len: Pointer to a size_t that will be updated to contain the length
|
|
* of bytes in prog.
|
|
* hrp: Pointer to the null-terminated human readable part that is
|
|
* expected (chain/network specific).
|
|
* addr: Pointer to the null-terminated address.
|
|
* Returns 1 if successful.
|
|
*/
|
|
int segwit_addr_decode(
|
|
int* ver,
|
|
uint8_t* prog,
|
|
size_t* prog_len,
|
|
const char* hrp,
|
|
const char* addr
|
|
);
|
|
|
|
/** Supported encodings. */
|
|
typedef enum {
|
|
BECH32_ENCODING_NONE,
|
|
BECH32_ENCODING_BECH32,
|
|
BECH32_ENCODING_BECH32M
|
|
} bech32_encoding;
|
|
|
|
/** Encode a Bech32 or Bech32m string
|
|
*
|
|
* Out: output: Pointer to a buffer of size strlen(hrp) + data_len + 8 that
|
|
* will be updated to contain the null-terminated Bech32 string.
|
|
* In: hrp : Pointer to the null-terminated human readable part.
|
|
* data : Pointer to an array of 5-bit values.
|
|
* data_len: Length of the data array.
|
|
* enc: Which encoding to use (BECH32_ENCODING_BECH32{,M}).
|
|
* Returns 1 if successful.
|
|
*/
|
|
int bech32_encode(
|
|
char *output,
|
|
const char *hrp,
|
|
const uint8_t *data,
|
|
size_t data_len,
|
|
bech32_encoding enc
|
|
);
|
|
|
|
/** Decode a Bech32 or Bech32m string
|
|
*
|
|
* Out: hrp: Pointer to a buffer of size BECH32_MAX_HRP_LEN + 1. Will be
|
|
* updated to contain the null-terminated human readable part.
|
|
* data: Pointer to a buffer of size strlen(input) - 8 that will
|
|
* hold the encoded 5-bit data values.
|
|
* data_len: Pointer to a size_t that will be updated to be the number
|
|
* of entries in data.
|
|
* In: input: Pointer to a null-terminated Bech32 string.
|
|
* Returns BECH32_ENCODING_BECH32{,M} to indicate decoding was successful
|
|
* with the specified encoding standard. BECH32_ENCODING_NONE is returned if
|
|
* decoding failed.
|
|
*/
|
|
bech32_encoding bech32_decode(
|
|
char *hrp,
|
|
uint8_t *data,
|
|
size_t *data_len,
|
|
const char *input
|
|
);
|
|
|
|
#endif
|