HKDF Key Derivation

Derive cryptographic keys using HKDF (RFC 5869) — extract-then-expand with configurable salt and info

How to Use HKDF Key Derivation

1. Enter your Input Key Material (IKM) in Hex or Base64 format
2. Set an optional salt and info context, then choose your hash algorithm and output key length
3. Click Generate to derive the key — the result can be verified against expected values

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