The following patch adds a kunit tests for the aes library. It does a very
minimal verification of the aes operation for all key-sizes. The benchmarks,
which are also part of the test-suite, can be used to get some rough
performance measurements of the aes encrypt and decrypt functions. The
aes_prepare*key() APIs are not covered by the benchmarks.
Changes since RFC [1]:
- reorder entries in Kconfig/Makefile alphabetically
- fail (instead of skip) in case of failures in key preparation
- replace local constant definitions
- replace macros with helper functions
[1] https://lore.kernel.org/linux-crypto/20260114153138.4896-1-dengler@linux.ibm.com
Example output of the aes_kunit test-suite:
[ 178.640161] KTAP version 1
[ 178.640167] 1..1
[ 178.642268] KTAP version 1
[ 178.642269] # Subtest: aes
[ 178.642270] # module: aes_kunit
[ 178.642272] 1..9
[ 178.642330] ok 1 test_aes128_encrypt
[ 178.642378] ok 2 test_aes128_decrypt
[ 178.642427] ok 3 test_aes192_encrypt
[ 178.642477] ok 4 test_aes192_decrypt
[ 178.642531] ok 5 test_aes256_encrypt
[ 178.642584] ok 6 test_aes256_decrypt
[ 179.345355] # benchmark_aes128: enc (iter. 10000000, duration 351128093ns)
[ 179.345359] # benchmark_aes128: enc (len=16): 434 MB/s
[ 179.345361] # benchmark_aes128: dec (iter. 10000000, duration 351541596ns)
[ 179.345363] # benchmark_aes128: dec (len=16): 434 MB/s
[ 179.345398] ok 7 benchmark_aes128
[ 180.082939] # benchmark_aes192: enc (iter. 10000000, duration 370559483ns)
[ 180.082942] # benchmark_aes192: enc (len=16): 411 MB/s
[ 180.082944] # benchmark_aes192: dec (iter. 10000000, duration 366888529ns)
[ 180.082946] # benchmark_aes192: dec (len=16): 415 MB/s
[ 180.082982] ok 8 benchmark_aes192
[ 180.810447] # benchmark_aes256: enc (iter. 10000000, duration 363703684ns)
[ 180.810450] # benchmark_aes256: enc (len=16): 419 MB/s
[ 180.810452] # benchmark_aes256: dec (iter. 10000000, duration 363671689ns)
[ 180.810454] # benchmark_aes256: dec (len=16): 419 MB/s
[ 180.810490] ok 9 benchmark_aes256
[ 180.810495] # aes: pass:9 fail:0 skip:0 total:9
[ 180.810498] # Totals: pass:9 fail:0 skip:0 total:9
[ 180.810500] ok 1 aes
Holger Dengler (1):
lib/crypto: tests: Add KUnit tests for AES
lib/crypto/tests/Kconfig | 12 +++
lib/crypto/tests/Makefile | 1 +
lib/crypto/tests/aes-testvecs.h | 78 +++++++++++++++++
lib/crypto/tests/aes_kunit.c | 149 ++++++++++++++++++++++++++++++++
4 files changed, 240 insertions(+)
create mode 100644 lib/crypto/tests/aes-testvecs.h
create mode 100644 lib/crypto/tests/aes_kunit.c
base-commit: 47753e09a15d9fd7cdf114550510f4f2af9333ec
--
2.51.0