Differential D32107

cryptodev: Permit explicit IV/nonce and MAC/tag lengths.
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Authored by jhb on Sep 24 2021, 6:04 PM.

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rG38b8a2be5c48: cryptodev: Permit explicit IV/nonce and MAC/tag lengths.
rG16676123fc85: cryptodev: Permit explicit IV/nonce and MAC/tag lengths.

Summary

Add 'ivlen' and 'maclen' fields to the structure used for CIOGSESSION2
to specify the explicit IV/nonce and MAC/tag lengths for crypto
sessions. If these fields are zero, the default lengths are used.

This permits selecting an alternate nonce length for AEAD ciphers such
as AES-CCM which support multiple nonce leengths. It also supports
truncated MACs as input to AEAD or ETA requests.

Sponsored by: The FreeBSD Foundation

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rG FreeBSD src repository

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Event Timeline

jhb created this revision.Sep 24 2021, 6:04 PM

Herald added a reviewer: manpages. · View Herald TranscriptSep 24 2021, 6:04 PM

Herald added subscribers: jmg, imp. · View Herald Transcript

jhb requested review of this revision.Sep 24 2021, 6:04 PM

jhb added a parent revision: D32106: cryptosoft, ccr: Use crp_iv directly for AES-CCM and AES-GCM..

jhb added a child revision: D32108: cryptodev: Permit CIOCCRYPT for AEAD ciphers..

Harbormaster completed remote builds in B41708: Diff 95641.Sep 24 2021, 6:05 PM

jhb added a reviewer: markj.Sep 27 2021, 9:33 PM

markj added inline comments.Sep 28 2021, 4:03 PM

sys/opencrypto/cryptodev.c
598	Why is this assignment needed? It is done again below.

jhb marked an inline comment as done.Oct 1 2021, 8:59 PM

jhb added inline comments.

sys/opencrypto/cryptodev.c
598	Oops, an earlier leftover from my first cut at doing this.

Drop an unnecessary line.

Harbormaster completed remote builds in B41905: Diff 96110.Oct 1 2021, 9:00 PM

markj accepted this revision.Oct 1 2021, 9:42 PM

This revision is now accepted and ready to land.Oct 1 2021, 9:42 PM

Closed by commit rG16676123fc85: cryptodev: Permit explicit IV/nonce and MAC/tag lengths. (authored by jhb). · Explain WhyOct 6 2021, 9:11 PM

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rG16676123fc85: cryptodev: Permit explicit IV/nonce and MAC/tag lengths..

jhb added a commit: rG38b8a2be5c48: cryptodev: Permit explicit IV/nonce and MAC/tag lengths..Oct 21 2021, 10:04 PM

Revision Contents
Changeset List

Path

Size

share/

man/

man4/

24 lines

sys/

opencrypto/

9 lines

29 lines

Diff 96376

share/man/man4/crypto.4

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sys/opencrypto/cryptodev.h

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sys/opencrypto/cryptodev.c

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