bech32 Namespace Reference

Classes
struct	DecodeResult

Enumerations
enum class	Encoding { INVALID , BECH32 , BECH32M }
enum	CharLimit : size_t { BECH32 = 90 }
	Character limits for Bech32(m) encoded strings. More...

Functions
std::string	Encode (Encoding encoding, const std::string &hrp, const data &values)
	Encode a Bech32 or Bech32m string.
DecodeResult	Decode (const std::string &str, CharLimit limit)
	Decode a Bech32 or Bech32m string.
std::pair< std::string, std::vector< int > >	LocateErrors (const std::string &str, CharLimit limit)
	Find index of an incorrect character in a Bech32 string.
std::string	Encode (Encoding encoding, const std::string &hrp, const std::vector< uint8_t > &values)
	Encode a Bech32 or Bech32m string.

Variables
static constexpr size_t	CHECKSUM_SIZE = 6
static constexpr char	SEPARATOR = '1'

Enumeration Type Documentation

CharLimit

enum bech32::CharLimit : size_t

Character limits for Bech32(m) encoded strings.

Character limits are how we provide error location guarantees. These values should never exceed 2^31 - 1 (max value for a 32-bit int), since there are places where we may need to convert the CharLimit::VALUE to an int. In practice, this should never happen since this CharLimit applies to an address encoding and we would never encode an address with such a massive value

Enumerator
BECH32	BIP173/350 imposed character limit for Bech32(m) encoded addresses. This guarantees finding up to 4 errors.

Definition at line 38 of file bech32.h.

Encoding

enum class bech32::Encoding

strong

Enumerator
INVALID	Failed decoding.
BECH32	Bech32 encoding as defined in BIP173.
BECH32M	Bech32m encoding as defined in BIP350.

Definition at line 27 of file bech32.h.

Function Documentation

Decode()

DecodeResult bech32::Decode	(	const std::string &	str,
		CharLimit	limit )

Decode a Bech32 or Bech32m string.

Definition at line 374 of file bech32.cpp.

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Encode() [1/2]

std::string bech32::Encode	(	Encoding	encoding,
		const std::string &	hrp,
		const data &	values )

Encode a Bech32 or Bech32m string.

Definition at line 358 of file bech32.cpp.

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Encode() [2/2]

std::string bech32::Encode	(	Encoding	encoding,
		const std::string &	hrp,
		const std::vector< uint8_t > &	values )

Encode a Bech32 or Bech32m string.

If hrp contains uppercase characters, this will cause an assertion error. Encoding must be one of BECH32 or BECH32M.

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LocateErrors()

std::pair< std::string, std::vector< int > > bech32::LocateErrors	(	const std::string &	str,
		CharLimit	limit )

Find index of an incorrect character in a Bech32 string.

Return the positions of errors in a Bech32 string.

Definition at line 403 of file bech32.cpp.

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Variable Documentation

CHECKSUM_SIZE

size_t bech32::CHECKSUM_SIZE = 6

staticconstexpr

Definition at line 24 of file bech32.h.

SEPARATOR

char bech32::SEPARATOR = '1'

staticconstexpr

Definition at line 25 of file bech32.h.