openpgp-notes/book/source/05-private.md
2023-09-25 14:00:14 +02:00

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(private_key_chapter)=
# Private keys
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- Consistently consider private key material as a separate thing from Certificates? (like in pkcs#11?)
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## Transferable secret keys
https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-10.html#name-transferable-secret-keys
## Private key operations
The core of private key operations doesn't require access to the whole certificate. A private key subsystem only needs to handle the cryptographic key material.
### OpenPGP card for private keys
[OpenPGP card](https://en.wikipedia.org/wiki/OpenPGP_card) devices are a type of hardware security device. They are one popular way to handle OpenPGP private key material. These devices do not store the full OpenPGP certificate.
## Advanced topics
### TSKs: Best practices S2K + S2K migration?
### The KOpenPGP attack