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ossl: Add a fallback AES-GCM implementation using AES-NI
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Authored by markj on May 4 2023, 7:10 PM.
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jhb
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rG9b1d87286c78: ossl: Add a fallback AES-GCM implementation using AES-NI
Summary

This lets one use ossl(4) for AES-GCM operations on contemporary
amd64 platforms.

Bulk processing is done in aesni-gcm-x86_64.S, the rest is handled in a
C wrapper ported from OpenSSL's gcm128.c.

Sponsored by: Stormshield
Sponsored by: Klara, Inc.

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rG FreeBSD src repository
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Event Timeline

markj created this revision.May 4 2023, 7:10 PM
Herald added a subscriber: imp. · View Herald TranscriptMay 4 2023, 7:10 PM
markj requested review of this revision.May 4 2023, 7:10 PM
Harbormaster completed remote builds in B51333: Diff 121526.May 4 2023, 7:10 PM
christos added a subscriber: christos.May 4 2023, 7:31 PM

Does the man page need an update to mention AES?

markj updated this revision to Diff 121552.May 5 2023, 1:18 AM
  • Mention AES-GCM in ossl.4.
Harbormaster completed remote builds in B51335: Diff 121552.May 5 2023, 1:18 AM
markj updated this revision to Diff 121581.May 5 2023, 5:51 PM

Port gcm128_(en|de)crypt_ctr32() as well, this includes loop unrolling which
helps throughput with small (< ~256) buffers that are not handled by the
bulk processing done in aesni_gcm_(en|de)crypt().

Harbormaster completed remote builds in B51346: Diff 121581.May 5 2023, 5:52 PM
jhb accepted this revision.May 8 2023, 6:03 PM
This revision is now accepted and ready to land.May 8 2023, 6:03 PM
Closed by commit rG9b1d87286c78: ossl: Add a fallback AES-GCM implementation using AES-NI (authored by markj). · Explain WhyJun 2 2023, 4:19 PM
This revision was automatically updated to reflect the committed changes.
markj added a commit: rG9b1d87286c78: ossl: Add a fallback AES-GCM implementation using AES-NI.

Revision Contents
Changeset List

PathSize
share/
man/
man4/
4 lines
sys/
crypto/
openssl/
amd64/
475 lines
7 lines
modules/
ossl/
2 lines

Diff 122760

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share/man/man4/ossl.4

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sys/crypto/openssl/amd64/ossl_aes_gcm.c

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sys/crypto/openssl/ossl_x86.c

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sys/modules/ossl/Makefile

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