Harmony Crypto: Multi-process Encrypted SharedPreferences

• Harmony

  4 90 6.3 Kotlin

  Multi-process SharedPreference implementation without ContentProvider (by pablobaxter)

Harmony is a process-safe, thread-safe SharedPreferences implementation. It uses no ContentProviders, Services, Messengers, etc. It's strictly file based and conforms to the SharedPreferences interface (mostly... see https://github.com/pablobaxter/Harmony/issues/14).

• Tink

  19 13,457 9.9 Java

  Discontinued Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

  

Also, given that Google used Tink for Encrypted SharedPreferences, I had to make some modifications there to allow proper usage of Harmony Crypto. The problem I ran into was that Tink used Android SharedPreference to store keys, but didn't allow for any SharedPreference object to be passed in, which meant that Tink was not process safe. That led to making this PR (https://github.com/google/tink/pull/493), but working around the problem for the meantime by creating custom classes within the Tink package space to be used in the Harmony Crypto project.

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