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Source file src/crypto/rc4/rc4_asm.go

Documentation: crypto/rc4

  // Copyright 2013 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // +build amd64 amd64p32 arm,!nacl 386
  
  package rc4
  
  func xorKeyStream(dst, src *byte, n int, state *[256]uint32, i, j *uint8)
  
  // XORKeyStream sets dst to the result of XORing src with the key stream.
  // Dst and src must overlap entirely or not at all.
  func (c *Cipher) XORKeyStream(dst, src []byte) {
  	if len(src) == 0 {
  		return
  	}
  	// Assert len(dst) >= len(src)
  	_ = dst[len(src)-1]
  	xorKeyStream(&dst[0], &src[0], len(src), &c.s, &c.i, &c.j)
  }
  

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