> What does key.getAlgorithm() return on 4.4 and previous versions? >
PBEWithSHA256And256BitAES-CBC-BC on both. > What does ecipher.getProvider().getName() return on 4.4 and > previous versions? > BC on both (bouncy castle I guess) > > Note that Using Cipher.getInstance() without specifying explicitly the > algorithm, mode and padding is a recipe for disaster. > I thought mode was CBC, padding BC (whatever that is). I was under major time pressure when I implemented encryption :-) > AlgorithmParameterSpec paramSpec = new IvParameterSpec( > > initVector ); > > > Where does initVector come frome and how was it generated? > An array of 8 random bytes, fixed. As is the salt. > > Most importantly, what encryption algorithm are you trying to use? > AES. > AES's block size is 16 bytes (128 bits) so there is no way it > can work 8 byte (56 bit) IVs. > > Right, that matches with on old devices the cipher reporting the block size as 16 also. However, it's worked since 2010 on a huge variety of devices, which leads us to the conclusion that the previous implementation was doing something to adapt to the too-short IV instead of complaining, right ? So I need to find out what that something is. I'll start with filling the IV up to 16 bytes with 0s or 1s though :-) Pent -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
