Trying to sort out encodings to/from Uint8Array, not working
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@ -9,36 +9,30 @@ define(function(require) {
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// Move back and forth from Uint8Arrays and CryptoJS' WordArray
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// source: https://groups.google.com/forum/#!topic/crypto-js/TOb92tcJlU0
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Uint8ArrayFormatter = {
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fromWordArray: function (wordArray) {
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// Shortcuts
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var WordArray = CryptoJS.lib.WordArray;
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function fromWordArray(wordArray) {
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var words = wordArray.words;
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var sigBytes = wordArray.sigBytes;
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// Convert
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var u8 = new Uint8Array(sigBytes);
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for (var i = 0; i < sigBytes; i++) {
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var byte = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
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u8[i]=byte;
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}
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console.log("stringify", wordArray, u8);
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return u8;
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},
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toWordArray: function (u8arr) {
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// Shortcut
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}
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function toWordArray(u8arr) {
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var len = u8arr.length;
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// Convert
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var words = [];
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for (var i = 0; i < len; i++) {
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words[i >>> 2] |= (u8arr[i] & 0xff) << (24 - (i % 4) * 8);
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}
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console.log("parse", u8arr, CryptoJS.lib.WordArray.create(words, len));
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return CryptoJS.lib.WordArray.create(words, len);
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return WordArray.create(words, len);
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}
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};
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CryptoJS.enc.Uint8Array = {
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stringify: fromWordArray,
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parse: toWordArray
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};
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function CryptoContext(context, encrypt, decrypt) {
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this.context = context;
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@ -56,7 +50,7 @@ console.log("parse", u8arr, CryptoJS.lib.WordArray.create(words, len));
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return;
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}
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if(value) {
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value = Uint8ArrayFormatter.fromWordArray(decrypt(value));
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value = decrypt(value);
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}
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callback(null, value);
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});
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@ -75,15 +69,30 @@ console.log("parse", u8arr, CryptoJS.lib.WordArray.create(words, len));
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// prompting the user to enter it when the file system is being opened.
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function CryptoAdapter(passphrase, provider) {
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this.provider = provider;
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this.encrypt = function(plain) {
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return CryptoJS[encryptionType]
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.encrypt(Uint8ArrayFormatter.toWordArray(plain), passphrase)
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.toString();
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this.encrypt = function(buffer) {
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var wordArray = toWordArray(buffer);
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// return CryptoJS[encryptionType]
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// .encrypt(wordArray, passphrase)
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// .toString(CryptoJS.enc.Uint8Array);
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var e = CryptoJS[encryptionType].encrypt(wordArray, passphrase);
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var e2 = e.ciphertext.toString(CryptoJS.enc.Uint8Array);
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console.log("encrypt", e, e2);
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return e2;
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};
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this.decrypt = function(encrypted) {
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return CryptoJS[encryptionType]
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.decrypt(encrypted, passphrase)
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.toString();
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debugger;
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var wordArray = toWordArray(encrypted);
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// return CryptoJS[encryptionType]
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// .decrypt(wordArray, passphrase)
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// .toString(CryptoJS.enc.Uint8Array);
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// var cipherParams = CryptoJS.lib.CipherParams.create({
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// ciphertext: CryptoJS.enc.Base64.parse(jsonObj.ct)
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// });
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var result = CryptoJS[encryptionType].decrypt({ciphertext:wordArray}, passphrase);
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return result.toString(CryptoJS.enc.Uint8Array);
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};
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}
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CryptoAdapter.isSupported = function() {
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