2023-10-23 19:04:58 +02:00
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<!--
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SPDX-FileCopyrightText: 2023 The "Notes on OpenPGP" project
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SPDX-License-Identifier: CC-BY-SA-4.0
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-->
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2023-09-20 14:48:26 +02:00
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(decryption_chapter)=
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2023-09-14 21:30:43 +02:00
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# Decryption
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2023-09-26 13:22:12 +02:00
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```{admonition} TODO
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:class: warning
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2023-09-14 21:30:43 +02:00
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- using expired certificate?
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- using revoked certificate?
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- using expired subkey?
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- using revoked subkey?
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2023-09-28 16:02:30 +02:00
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```
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2023-10-04 15:19:01 +02:00
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## SEIPD w/ AEAD (v2)
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## SEIPD (v1)
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## SED
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Legacy mode, may be decrypted, but not produced.
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2023-09-28 16:02:30 +02:00
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## Advanced topics
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### Selecting decryption key
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- Trying PKESKs until one works out
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- consider "smart" strategies
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additional wrinkle: hidden intended decryption key (`gnupg --throw-keyid`)
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also see:
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https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-10.html#pkesk-notes
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> An implementation MAY accept or use a Key ID of all zeros, or an omitted key fingerprint, to hide the intended decryption key
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