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Fix infinite loop from empty password #1

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Fix infinite loop from empty password #1

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10 changes: 6 additions & 4 deletions xor.js
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Original file line number Diff line number Diff line change
Expand Up @@ -56,14 +56,16 @@ XorEncoder.prototype.encrypt = function(buffer) {
};

var valueChars = charArray(value);
var repeatedPassChars = charArray(repeatString(this.key, value));
if (this.key) {
var repeatedPassChars = charArray(repeatString(this.key, value));
var valueChars = xorArrays(valueChars, repeatedPassChars);
}
var repeatedIVChars = charArray(repeatString(this.iv, value));

var pre = xorArrays(valueChars, repeatedIVChars);
var post = xorArrays(pre, repeatedPassChars);
var post = xorArrays(valueChars, repeatedIVChars);

return joinCharCodes(post);
}


module.exports = XorEncoder;
module.exports = XorEncoder;