sjcl-aws
Version:
Stanford Javascript Crypto Library
34 lines (31 loc) • 811 B
JavaScript
/** @fileOverview Bit array codec implementations.
*
* @author Emily Stark
* @author Mike Hamburg
* @author Dan Boneh
*/
/**
* Hexadecimal
* @namespace
*/
sjcl.codec.hex = {
/** Convert from a bitArray to a hex string. */
fromBits: function (arr) {
var out = "", i;
for (i=0; i<arr.length; i++) {
out += ((arr[i]|0)+0xF00000000000).toString(16).substr(4);
}
return out.substr(0, sjcl.bitArray.bitLength(arr)/4);//.replace(/(.{8})/g, "$1 ");
},
/** Convert from a hex string to a bitArray. */
toBits: function (str) {
var i, out=[], len;
str = str.replace(/\s|0x/g, "");
len = str.length;
str = str + "00000000";
for (i=0; i<str.length; i+=8) {
out.push(parseInt(str.substr(i,8),16)^0);
}
return sjcl.bitArray.clamp(out, len*4);
}
};