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Editorial Team
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Asked: 2026-05-20T07:42:31+00:00

From the documentation it looks like this is not possible, but I want to

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From the documentation it looks like this is not possible, but I want to be sure. Here’s my use case:

I want an encrypted database. It should only be decrypted while it is in memory (while the program is running). The only way I can see to do this would be to decrypt a file from disk before handing it off to SQLite. But I cannot find any way to give SQLite a pointer and say, “Here, this is a database.” Nor can I find a way to serialize an in-memory database and then encrypt it before writing to disk. I assume the sqlite3_backup API would need an unencrypted database file?

I’m running on Android, so I’d like to use the built-in SQLite and I don’t think it will be possible to install SQLite Encryption Extension (SEE). (Running on Android also means I don’t have full access to the C++ API, but we can ignore that for now).

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1 Answer

  1. Editorial Team

    Since you can replace the functions sqlite uses to interact with the filesystem from the application using the sqlite_vfs_register method, it should be possible. I don’t have experience with the encryption extension, but there is a chance that it uses this interface too, so it might be even possible to use it.

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