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Components.utils.import('resource://greasemonkey/util.js');
const EXPORTED_SYMBOLS = ['sha1'];
function sha1(unicode) {
var unicodeConverter = Components
.classes["@mozilla.org/intl/scriptableunicodeconverter"]
.createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
unicodeConverter.charset = "UTF-8";
var data = unicodeConverter.convertToByteArray(unicode, {});
var ch = Components.classes["@mozilla.org/security/hash;1"]
.createInstance(Components.interfaces.nsICryptoHash);
ch.init(ch.SHA1);
ch.update(data, data.length);
var hash = ch.finish(false); // hash as raw octets
var hex = [];
for (var i = 0; i < hash.length; i++) {
hex.push( ("0" + hash.charCodeAt(i).toString(16)).slice(-2) );
}
return hex.join('');
}
sha1 = GM_util.memoize(sha1);
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