Blog
Notes on privacy and design
How Hedgehog Bits works, why it is built the way it is, and practical advice for keeping your data your own.
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What a disguise can and cannot do
Hedgehog Bits looks like a set of brain games. An honest look at what that cover protects against, where it stops, and what actually keeps your data safe.
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Moving your vault to a new iPhone
Hedgehog Bits stays out of iCloud and phone-to-phone transfer on purpose. Here is how to move your vault yourself with an encrypted backup file.
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How Hedgehog Bits encrypts your files
A walk through the vault's encryption: Argon2id key derivation, a wrapped master key, per-item HKDF keys and chunked AES-256-GCM, and why each choice was made.
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Introducing Hedgehog Bits: a vault with no servers
Why we built a private iPhone vault that keeps everything on the device, with no accounts, no sync and no way for us to see your data.
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