Arcfour Class
Constructors
Code new Arcfour() #
Arcfour() { this.i = 0; this.j = 0; this.S = new Map(); }
Methods
Code init(key) #
init(key) { var i, j, t; for(i = 0; i < 256; ++i) this.S[i] = i; j = 0; for(i = 0; i < 256; ++i) { j = (j + this.S[i] + key[i % key.length]) & 255; t = this.S[i]; this.S[i] = this.S[j]; this.S[j] = t; } this.i = 0; this.j = 0; }
Code next() #
next() { var t; this.i = (this.i + 1) & 255; this.j = (this.j + this.S[this.i]) & 255; t = this.S[this.i]; this.S[this.i] = this.S[this.j]; this.S[this.j] = t; return this.S[(t + this.S[this.i]) & 255]; }
Fields
Code Map S #
Map S;
Code var i #
var i;
Code var j #
var j;