encryption

package
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Published: Aug 31, 2020 License: BSD-3-Clause Imports: 4 Imported by: 8

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Constants

View Source
const (
	KeyLength     = 32
	ReferenceSize = 64
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Encryption

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

func (*Encryption) Decrypt

func (e *Encryption) Decrypt(data []byte) ([]byte, error)

Decrypt decrypts the data, if padding was used caller must know original length and truncate

func (*Encryption) Encrypt

func (e *Encryption) Encrypt(data []byte) ([]byte, error)

Encrypt encrypts the data and does padding if specified

func (*Encryption) Reset

func (e *Encryption) Reset()

Reset resets the counter. It is only safe to call after an encryption operation is completed After Reset is called, the Encryption object can be re-used for other data

func (*Encryption) Transcrypt

func (e *Encryption) Transcrypt(i int, in, out []byte) error

used for segmentwise transformation if in is shorter than out, padding is used

type Interface

type Interface interface {
	Encrypt(data []byte) ([]byte, error)
	Decrypt(data []byte) ([]byte, error)
	Reset()
}

func New

func New(key Key, padding int, initCtr uint32, hashFunc func() hash.Hash) Interface

New constructs a new encryptor/decryptor

type Key

type Key []byte

func GenerateRandomKey

func GenerateRandomKey(l int) Key

GenerateRandomKey generates a random key of length l

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