59 lines
2 KiB
C++
59 lines
2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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/**
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* Why base-58 instead of standard base-64 encoding?
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* - Don't want 0OIl characters that look the same in some fonts and
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* could be used to create visually identical looking data.
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* - A string with non-alphanumeric characters is not as easily accepted as input.
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* - E-mail usually won't line-break if there's no punctuation to break at.
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* - Double-clicking selects the whole string as one word if it's all alphanumeric.
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*/
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#ifndef BITCOIN_BASE58_H
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#define BITCOIN_BASE58_H
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#include <attributes.h>
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#include <span.h>
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#include <string>
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#include <vector>
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/**
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* Encode a byte span as a base58-encoded string
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*/
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std::string EncodeBase58(Span<const unsigned char> input);
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/**
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* Decode a base58-encoded string (psz) into a byte vector (vchRet).
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* return true if decoding is successful.
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* psz cannot be nullptr.
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*/
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NODISCARD bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet, int max_ret_len);
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/**
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* Decode a base58-encoded string (str) into a byte vector (vchRet).
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* return true if decoding is successful.
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*/
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NODISCARD bool DecodeBase58(const std::string& str, std::vector<unsigned char>& vchRet, int max_ret_len);
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/**
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* Encode a byte span into a base58-encoded string, including checksum
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*/
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std::string EncodeBase58Check(Span<const unsigned char> input);
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/**
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* Decode a base58-encoded string (psz) that includes a checksum into a byte
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* vector (vchRet), return true if decoding is successful
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*/
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NODISCARD bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet, int max_ret_len);
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/**
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* Decode a base58-encoded string (str) that includes a checksum into a byte
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* vector (vchRet), return true if decoding is successful
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*/
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NODISCARD bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet, int max_ret_len);
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#endif // BITCOIN_BASE58_H
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