generators

Documentation

Index

• Constants
• func BuildBytesFromInt64(value int64) []byte
• func BuildBytesFromUint64(value uint64) []byte
• func BuildInt64FromBytes(data []byte) (res int64)
• func BuildUint64FromBytes(data []byte) (res uint64)
• func GetHashFunctionNameBySize(size int) (string, int, error)
• type Generator
  • func GetHashBytesGen(salt []byte, size int) (Generator, error)
  • func NewHash(salt []byte, funcName string) (Generator, error)
  • func NewHashReducer(g Generator, size int) Generator
  • func NewSipHash(salt []byte) (Generator, error)
• type Hash
  • func (s *Hash) Generate(data []byte) ([]byte, error)
• type HashReducer
  • func (hr *HashReducer) Generate(data []byte) (res []byte, err error)
  • func (hr *HashReducer) Size() int
• type HybridBytes
  • func NewHybridBytes(seed int64, requestedSize int, h Generator) *HybridBytes
  • func (hb *HybridBytes) Generate(data []byte) ([]byte, error)
• type Int64Random
  • func NewInt64Random(seed int64) (*Int64Random, error)
  • func (i *Int64Random) Generate(data []byte) ([]byte, error)
  • func (i *Int64Random) Size() int
• type MurmurHash
  • func NewMurmurHash(seed uint32, size int) *MurmurHash
  • func (mh *MurmurHash) Generate(data []byte) ([]byte, error)
  • func (mh *MurmurHash) Size() int
• type Projector
  • func NewProjector(generators ...Generator) *Projector
  • func (p *Projector) Generate(data []byte) (res []byte, err error)
  • func (p *Projector) Size() int
• type RandomBytes
  • func NewRandomBytes(seed int64, size int) *RandomBytes
  • func (br *RandomBytes) Generate(data []byte) ([]byte, error)
  • func (br *RandomBytes) Size() int
• type SipHash
  • func (s *SipHash) Generate(data []byte) ([]byte, error)

Constants

const (
	Sha1Name   = "sha1"
	Sha256Name = "sha256"
	Sha512Name = "sha512"
	Sha3224    = "sha3-224"
	Sha3256    = "sha3-256"
	Sha3384    = "sha3-384"
	Sha3512    = "sha3-512"
)

const (
	MurMurHash32Size  = 4
	MurMurHash64Size  = 8
	MurMurHash128Size = 16
)

Functions

func BuildBytesFromInt64

func BuildBytesFromInt64(value int64) []byte

func BuildBytesFromUint64

func BuildBytesFromUint64(value uint64) []byte

func BuildInt64FromBytes

func BuildInt64FromBytes(data []byte) (res int64)

BuildInt64FromBytes - decode bytes array to int64 representation. In case there is less

func BuildUint64FromBytes

func BuildUint64FromBytes(data []byte) (res uint64)

func GetHashFunctionNameBySize

func GetHashFunctionNameBySize(size int) (string, int, error)

Types

type Generator

type Generator interface {
	Generate([]byte) ([]byte, error)
	Size() int
}

We don't know the byte length in the output, min value, max value

func GetHashBytesGen

func GetHashBytesGen(salt []byte, size int) (Generator, error)

func NewHash

func NewHash(salt []byte, funcName string) (Generator, error)

func NewHashReducer

func NewHashReducer(g Generator, size int) Generator

func NewSipHash

func NewSipHash(salt []byte) (Generator, error)

type Hash

type Hash struct {
	hash.Hash
	// contains filtered or unexported fields
}

func (*Hash) Generate

func (s *Hash) Generate(data []byte) ([]byte, error)

type HashReducer

type HashReducer struct {
	// contains filtered or unexported fields
}

func (*HashReducer) Generate

func (hr *HashReducer) Generate(data []byte) (res []byte, err error)

func (*HashReducer) Size

func (hr *HashReducer) Size() int

type HybridBytes

type HybridBytes struct {
	// contains filtered or unexported fields
}

func NewHybridBytes

func NewHybridBytes(seed int64, requestedSize int, h Generator) *HybridBytes

func (*HybridBytes) Generate

func (hb *HybridBytes) Generate(data []byte) ([]byte, error)

type Int64Random

type Int64Random struct {
	// contains filtered or unexported fields
}

func NewInt64Random

func NewInt64Random(seed int64) (*Int64Random, error)

func (*Int64Random) Generate

func (i *Int64Random) Generate(data []byte) ([]byte, error)

func (*Int64Random) Size

func (i *Int64Random) Size() int

type MurmurHash

type MurmurHash struct {
	hash.Hash
	// contains filtered or unexported fields
}

func NewMurmurHash

func NewMurmurHash(seed uint32, size int) *MurmurHash

func (*MurmurHash) Generate

func (mh *MurmurHash) Generate(data []byte) ([]byte, error)

func (*MurmurHash) Size

func (mh *MurmurHash) Size() int

type Projector

type Projector struct {
	// contains filtered or unexported fields
}

func NewProjector

func NewProjector(generators ...Generator) *Projector

func (*Projector) Generate

func (p *Projector) Generate(data []byte) (res []byte, err error)

func (*Projector) Size

func (p *Projector) Size() int

type RandomBytes

type RandomBytes struct {
	// contains filtered or unexported fields
}

func NewRandomBytes

func NewRandomBytes(seed int64, size int) *RandomBytes

func (*RandomBytes) Generate

func (br *RandomBytes) Generate(data []byte) ([]byte, error)

func (*RandomBytes) Size

func (br *RandomBytes) Size() int

type SipHash

type SipHash struct {
	hash.Hash
	// contains filtered or unexported fields
}

func (*SipHash) Generate

func (s *SipHash) Generate(data []byte) ([]byte, error)