mariadb/mysql-test/main/func_kdf.combinations
Sergei Golubchik 4f9396b9f8 MDEV-31474 KDF() function
KDF(key_str, salt [, {info | iterations} [, kdf_name [, width ]]])

kdf_name is "hkdf" or "pbkdf2_hmac" (default).

width (in bits) can be any number divisible by 8,
by default it's taken from @@block_encryption_mode

iterations must be positive, and is 1000 by default

OpenSSL 1.0 doesn't support HKDF, so it'll return NULL.
This OpenSSL version is still used in SLES 12 and CentOS 7
2023-09-30 14:43:12 +02:00

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# remove when no longer building with OpenSSL 1.0