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fix computeMac
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parent
3728cd8e1d
commit
65d822716e
@ -292,21 +292,21 @@ function initCryptoService() {
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throw 'MAC key unavailable.';
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}
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var ivBits = forge.util.decode64(cipherString.initializationVector);
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var ctBits = forge.util.decode64(cipherString.cipherText);
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var ivBytes = forge.util.decode64(cipherString.initializationVector);
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var ctBytes = forge.util.decode64(cipherString.cipherText);
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var computedMac = null;
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if (cipherString.mac) {
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computedMac = computeMac(ctBits, ivBits, macKey);
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computedMac = computeMac(ctBytes, ivBytes, macKey);
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if (computedMac !== cipherString.mac) {
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console.error('MAC failed.');
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deferred.reject('MAC failed.');
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}
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}
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var ctBuffer = forge.util.createBuffer(ctBits);
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var ctBuffer = forge.util.createBuffer(ctBytes);
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var decipher = forge.cipher.createDecipher('AES-CBC', computedMac ? theEncKey : key);
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decipher.start({ iv: ivBits });
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decipher.start({ iv: ivBytes });
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decipher.update(ctBuffer);
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decipher.finish();
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@ -320,11 +320,10 @@ function initCryptoService() {
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};
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function computeMac(ct, iv, macKey) {
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var bits = iv.concat(ct);
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var hmac = forge.hmac.create();
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hmac.start('sha256', macKey);
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hmac.update(bits);
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hmac.update(iv + ct);
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var mac = hmac.digest();
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return forge.util.encode64(mac);
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return forge.util.encode64(mac.getBytes());
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}
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};
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