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Add support for including ESN in AES-NI crypto driver
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Authored by jaz_semihalf.com on Nov 14 2019, 12:24 PM.

Details

Summary

This patch adds support for IPSec ESN (Extended Sequence Numbers) in
encrypt and authenticate mode (eg. AES-CBC and SHA256) and combined mode
(eg. AES-GCM).

For the encrypt and authenticate mode the ESN is stored in separate
crp_esn buffer because the high-order 32 bits of the sequence number are
appended after the Next Header (RFC 4303).

For the combined modes the high-order 32 bits of the sequence number
[e.g. RFC 4106, Chapter 5 AAD Construction] are part of crp_aad
(prepared by netipsec layer in case of ESN support enabled), therefore
non visible diff around combined modes.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

jaz_semihalf.com updated this revision to Diff 71770.

Align to new OCF

sys/crypto/aesni/aesni.c
256 ↗(On Diff #76980)

I'd probably just leave this spelled out in probesession.

873 ↗(On Diff #76980)

Woo, nice it was this easy to add!

This revision is now accepted and ready to land.Sep 24 2020, 10:18 PM
This revision was automatically updated to reflect the committed changes.