Not thread safe to put/get values from single instance of EncryptedSharedPreferences

[AndreySoloviov]

i'm getting (divide by zero, BadPadding, Illegal Block Size) exceptions, while trying to put/get data from different threads with single instance of EncryptedSharedPreferences.

Encryption's encrypt/decrypt should be synchronized if u are using single instance of ESP, cause of: http://stackoverflow.com/questions/6957406/is-cipher-thread-safe