utils

package

v0.4.6 Latest Latest Go to latest Published: Oct 10, 2023 License: MIT Imports: 10 Imported by: 37

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Valid go.mod file
Redistributable license
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Repository

github.com/NethermindEth/starknet.go

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Documentation ¶

Index ¶

func BigIntToFelt(big *big.Int) *felt.Felt
func BigToHex(in *big.Int) string
func BytesToBig(bytes []byte) *big.Int
func ComputeFact(programHash *big.Int, programOutputs []*big.Int) *big.Int
func FeltArrToBigIntArr(f []*felt.Felt) []*big.Int
func FeltToBigInt(f *felt.Felt) *big.Int
func FmtKecBytes(in *big.Int, rolen int) (buf []byte)
func GetSelectorFromName(funcName string) *big.Int
func GetSelectorFromNameFelt(funcName string) *felt.Felt
func HexArrToFelt(hexArr []string) ([]*felt.Felt, error)
func HexToBN(hexString string) *big.Int
func HexToBytes(hexString string) ([]byte, error)
func HexToFelt(hex string) (*felt.Felt, error)
func HexToShortStr(hexStr string) string
func Keccak256(data ...[]byte) []byte
func MaskBits(mask, wordSize int, slice []byte) (ret []byte)
func SNValToBN(str string) *big.Int
func SplitFactStr(fact string) (fact_low, fact_high string)
func StrToBig(str string) *big.Int
func TestHexArrToFelt(t testing.TB, hexArr []string) []*felt.Felt
func TestHexToFelt(t testing.TB, hex string) *felt.Felt
func UTF8StrToBig(str string) *big.Int
func Uint64ToFelt(num uint64) *felt.Felt
type KeccakState
- func NewKeccakState() KeccakState

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func BigIntToFelt ¶

func BigIntToFelt(big *big.Int) *felt.Felt

func BigToHex ¶ added in v0.4.6

func BigToHex(in *big.Int) string

convert big int to hexidecimal string

func BytesToBig ¶ added in v0.4.6

func BytesToBig(bytes []byte) *big.Int

func ComputeFact ¶ added in v0.4.6

func ComputeFact(programHash *big.Int, programOutputs []*big.Int) *big.Int

compute the keccack fact given the program hash and outputs

func FeltArrToBigIntArr ¶ added in v0.4.5

func FeltArrToBigIntArr(f []*felt.Felt) []*big.Int

func FeltToBigInt ¶

func FeltToBigInt(f *felt.Felt) *big.Int

func FmtKecBytes ¶ added in v0.4.6

func FmtKecBytes(in *big.Int, rolen int) (buf []byte)

format the bytes in Keccak hash

func GetSelectorFromName ¶ added in v0.4.6

func GetSelectorFromName(funcName string) *big.Int

todo(): this is used by the signer. Should it return a felt?

func GetSelectorFromNameFelt ¶ added in v0.4.6

func GetSelectorFromNameFelt(funcName string) *felt.Felt

func HexArrToFelt ¶

func HexArrToFelt(hexArr []string) ([]*felt.Felt, error)

func HexToBN ¶ added in v0.4.6

func HexToBN(hexString string) *big.Int

trim "0x" prefix(if exists) and converts hexidecimal string to big int

func HexToBytes ¶ added in v0.4.6

func HexToBytes(hexString string) ([]byte, error)

trim "0x" prefix(if exists) and converts hexidecimal string to byte slice

func HexToFelt ¶

func HexToFelt(hex string) (*felt.Felt, error)

func HexToShortStr ¶ added in v0.4.6

func HexToShortStr(hexStr string) string

convert hex string to Starknet 'short string'

func Keccak256 ¶ added in v0.4.6

func Keccak256(data ...[]byte) []byte

Keccak256 calculates and returns the Keccak256 hash of the input data. (ref: https://github.com/ethereum/go-ethereum/blob/master/crypto/crypto.go)

func MaskBits ¶ added in v0.4.6

func MaskBits(mask, wordSize int, slice []byte) (ret []byte)

mask excess bits

func SNValToBN ¶ added in v0.4.6

func SNValToBN(str string) *big.Int

used in string conversions when interfacing with the APIs

func SplitFactStr ¶ added in v0.4.6

func SplitFactStr(fact string) (fact_low, fact_high string)

split a fact into two felts

func StrToBig ¶ added in v0.4.6

func StrToBig(str string) *big.Int

convert decimal string to big int

func TestHexArrToFelt ¶

func TestHexArrToFelt(t testing.TB, hexArr []string) []*felt.Felt

func TestHexToFelt ¶

func TestHexToFelt(t testing.TB, hex string) *felt.Felt

func UTF8StrToBig ¶ added in v0.4.6

func UTF8StrToBig(str string) *big.Int

Convert utf8 string to big int

func Uint64ToFelt ¶

func Uint64ToFelt(num uint64) *felt.Felt

Types ¶

type KeccakState ¶ added in v0.4.6

type KeccakState interface {
	hash.Hash
	Read([]byte) (int, error)
}

KeccakState wraps sha3.state. In addition to the usual hash methods, it also supports Read to get a variable amount of data from the hash state. Read is faster than Sum because it doesn't copy the internal state, but also modifies the internal state.

func NewKeccakState ¶ added in v0.4.6

func NewKeccakState() KeccakState

NewKeccakState creates a new KeccakState (ref: https://github.com/ethereum/go-ethereum/blob/master/crypto/crypto.go)

Source Files ¶

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