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use string instead of array in cfb encrypt

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This commit is contained in:
Tankred Hase 2014-02-25 10:50:12 +01:00
parent 49ac4e6816
commit 31f9064e90
1 changed files with 3 additions and 3 deletions
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6
src/crypto/cfb.js
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@ -130,7 +130,7 @@ module.exports = {
ciphertext += String.fromCharCode(FRE[i] ^ plaintext.charCodeAt(i)); ciphertext += String.fromCharCode(FRE[i] ^ plaintext.charCodeAt(i));
} }
var tempCiphertext = ciphertext.substring(0, 2 * block_size).split(''); var tempCiphertext = ciphertext.substring(0, 2 * block_size);
var tempCiphertextString = ciphertext.substring(block_size); var tempCiphertextString = ciphertext.substring(block_size);
var tempCiphertextBlock; var tempCiphertextBlock;
for (n = block_size; n < plaintext.length; n += block_size) { for (n = block_size; n < plaintext.length; n += block_size) {
@ -148,11 +148,11 @@ module.exports = {
// process is repeated until the plaintext is used up. // process is repeated until the plaintext is used up.
for (i = 0; i < block_size; i++) { for (i = 0; i < block_size; i++) {
tempCiphertextBlock = String.fromCharCode(FRE[i] ^ plaintext.charCodeAt(n + i)); tempCiphertextBlock = String.fromCharCode(FRE[i] ^ plaintext.charCodeAt(n + i));
tempCiphertext[tempCiphertext.length] = tempCiphertextBlock; tempCiphertext += tempCiphertextBlock;
tempCiphertextString += tempCiphertextBlock; tempCiphertextString += tempCiphertextBlock;
} }
} }
ciphertext = tempCiphertext.join(''); ciphertext = tempCiphertext;
} }
ciphertext = ciphertext.substring(0, plaintext.length + 2 + block_size); ciphertext = ciphertext.substring(0, plaintext.length + 2 + block_size);