I'm passing a base 64 string created with RNCryptor on iOS and am unable to decrypt it. When adding some console.logs to the Node.JS library's Decrypt function, it stops at the !_hmac_is_valid comparison. I can, however, use the .NET library to decrypt and the output is fine.
iOS
- (void) sendCommand: (NSString *) command {
NSData *data = [command dataUsingEncoding:NSUTF8StringEncoding];
NSString *key = @"1234567890123456789012";
NSData *encryptedData = [RNEncryptor encryptData:data
withSettings:kRNCryptorAES256Settings
password:key
error:&error];
if (currentPeripheral != nil && currentPeripheral.state == CBPeripheralStateConnected) {
[currentPeripheral writeValue:encryptedData forCharacteristic:currentCharacteristic type:CBCharacteristicWriteWithResponse];
}
}
Node.JS
function decryptString(data) {
const RNCryptor = require('jscryptor');
const password = '1234567890123456789012';
try {
console.log(RNCryptor.Decrypt(data.toString('base64'), password).toString('ascii')); // undefined when trying to decrypt the iOS string
}
catch (e) {}
}
VB.NET test
Public Function DecryptString(encryptedString) As String
Dim password = "1234567890123456789012"
Dim decryptor As New Decryptor
Dim decryptedData As String = decryptor.Decrypt(encryptedString, password)
Return decryptedData
End Function