package rc4

import "crypto/rc4"

Package rc4 implements RC4 encryption, as defined in Bruce Schneier's Applied Cryptography.

Index ¶

• type Cipher
• func NewCipher(key []byte) (*Cipher, error)
• func (c *Cipher) Reset()
• func (c *Cipher) XORKeyStream(dst, src []byte)
• type KeySizeError
• func (k KeySizeError) Error() string
• Bugs

Types ¶

type Cipher ¶

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

A Cipher is an instance of RC4 using a particular key.

func NewCipher ¶

func NewCipher(key []byte) (*Cipher, error)

NewCipher creates and returns a new Cipher. The key argument should be the RC4 key, at least 1 byte and at most 256 bytes.

func (*Cipher) Reset ¶

func (c *Cipher) Reset()

Reset zeros the key data so that it will no longer appear in the process's memory.

func (*Cipher) XORKeyStream ¶

func (c *Cipher) XORKeyStream(dst, src []byte)

XORKeyStream sets dst to the result of XORing src with the key stream. Dst and src may be the same slice but otherwise should not overlap.

type KeySizeError ¶

type KeySizeError int

func (KeySizeError) Error ¶

func (k KeySizeError) Error() string

Bugs ¶

☞ RC4 is in common use but has design weaknesses that make it a poor choice for new protocols.

Source Files ¶

rc4.go rc4_asm.go