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Do not allow PBKDF benchmark over maximum allowed threads.

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Unfortunatelly the benchmark function cannot return
corrected parallel cost, so it must fail.

Note that some backends (like OpenSSL) also limits maximal thread count,
so currently it was clapped at 4 for luksFormat and 8 for benchmark.

This patch set it all to PBKDF internal parallel limit.
This commit is contained in:
Milan Broz
2025-05-14 14:55:17 +02:00
parent 6b832b8d03
commit e6f6ee9291
1 changed files with 3 additions and 0 deletions
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3
lib/crypto_backend/pbkdf_check.c
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@@ -408,6 +408,9 @@ int crypt_pbkdf_perf(const char *kdf, const char *hash,
if (r < 0)
return r;
if (parallel_threads > pbkdf_limits.max_parallel)
return -EINVAL;
min_memory = pbkdf_limits.min_bench_memory;
if (min_memory > max_memory_kb)
min_memory = max_memory_kb;