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Nov 21, 2022
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Adds new intro to key management page #181

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4 changes: 2 additions & 2 deletions docs/key_management.md
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# Key Management

Relevant reference: [Rust docs](https://docs.rs/lightning/*/lightning/chain/keysinterface/struct.KeysManager.html)
LDK provides a simple interface that takes a 32-byte seed for use as a BIP 32 extended key and derives keys from that. Check out the [Rust docs](https://docs.rs/lightning/*/lightning/chain/keysinterface/struct.KeysManager.html)

LDK Private Key Information is primarily provided through the `chain::keysinterface::KeysInterface` trait. It includes a few basic methods to get public and private key information, as well as a method to get an instance of a second trait which provides per-channel information - `chain::keysinterface::ChannelKeys`.

While a custom `KeysInterface` implementation allows simple flexibility to control derivation of private keys, `ChannelKeys` focuses on signing Lightning transactions and is primarily useful if you want to store private key material on a separate device which enforces Lightning protocol details.
While a custom `KeysInterface` implementation allows simple flexibility to control derivation of private keys, `ChannelKeys` focuses on signing lightning transactions and is primarily useful if you want to store private key material on a separate device which enforces lightning protocol details.

A simple implementation of `KeysInterface` is provided in the form of `chain::keysinterface::KeysManager`, see its documentation for more details on its key derivation. It uses `chain::keysinterface::InMemoryChannelKeys` for channel signing, which is likely an appropriate signer for custom `KeysInterface` implementations as well.

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