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https://github.com/trezor/trezor-firmware.git
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45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
/**
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* Copyright (c) 2017 Saleem Rashid
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __BASE32_H__
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#define __BASE32_H__
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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extern const char *BASE32_ALPHABET_RFC4648;
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char *base32_encode(const uint8_t *in, size_t inlen, char *out, size_t outlen,
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const char *alphabet);
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void base32_encode_unsafe(const uint8_t *in, size_t inlen, uint8_t *out);
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uint8_t *base32_decode(const char *in, size_t inlen, uint8_t *out,
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size_t outlen, const char *alphabet);
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bool base32_decode_unsafe(const uint8_t *in, size_t inlen, uint8_t *out,
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const char *alphabet);
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size_t base32_encoded_length(size_t inlen);
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size_t base32_decoded_length(size_t inlen);
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#endif
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