Systems and methods for securing offline data

A system comprising:

• one or more processors, coupled to memory, configured to:
• generate, for an application executable on a computing device, cache files for a plurality of users of the application, the cache files store user data corresponding to individual users of the application, and the computing device being a shared computing device so that the cache files are viewable by the plurality of users using the computing device;
• generate an encryption key for one of the cache files, the encryption key being associated with a user of the application, wherein the encryption key is associated with a user identifier so that the encryption key is not accessible by other users of the computing device;
• encrypt user data corresponding to the user for the application in the one of the cache files with the encryption key;
• associate the one of the caches file with a cache lookup key generated using the user identifier;
• receive, from the user, the user identifier and a pin that enable access to the encryption key used to decrypt the encrypted user data corresponding to the user for the application;
• identify, responsive to receipt of the user identifier, the one of the cache files for the user using the cache lookup key;
• retrieve, using the received pin, the encryption key for the identified one of the cache files configured to decrypt the encrypted user data corresponding to the user for the application;
• and
• present, to the user, the user data of the encrypted user data decrypted using the encryption key accessed with the pin, the encrypted user data and the encryption key of the user inaccessible to other users of the computing device without the user identifier and the pin.

A non-transitory computer-readable medium, comprising instructions that, when executed by a processor of a device, cause the processor to:

• generate, for an application executable on the device, cache files for a plurality of users of the application, the cache files store user data corresponding to individual users of the application, and the device being a shared computing device so that the cache files are viewable by the plurality of users using the device;
• generate an encryption key for one of the cache files, the encryption key being associated with a user of the application, wherein the encryption key is associated with a user identifier so that the encryption key is not accessible by other users of the device;
• encrypt user data corresponding to the user for the application in the one of the cache files with the encryption key;
• associate the one of the caches file with a cache lookup key generated using the user identifier;
• receive, from the user, the user identifier and a pin that enable access to the encryption key used to decrypt the encrypted user data corresponding to the user for the application;
• identify, responsive to receipt of the user identifier, the one of the cache files for the user using the cache lookup key;
• retrieve, using the received pin, the encryption key for the identified one of the cache files configured to decrypt the encrypted user data corresponding to the user for the application;
• and
• present, to the user, the user data of the encrypted user data decrypted using the encryption key accessed with the pin, the encrypted user data and the encryption key of the user inaccessible to other users of the device without the user identifier and the pin.