Fix oaep encryption parameters handling #2523

Job	Run time
build on fedora:40 (gcc, true)	1m 39s
build on fedora:40 (clang, false)	1m 31s
build on fedora:41 (gcc, false)	1m 32s
build on ubuntu:24.10 (gcc,false)	1m 22s
build on fedora:41 (clang, false)	1m 24s
build on macos (macos-latest)	54s
build on ubuntu:24.10 (clang,false)	1m 28s
build on macos (macos-latest-xlarge)	45s
build on ubuntu:24.04 (gcc,false)	1m 20s
build on ubuntu:24.04 (clang,false)	1m 40s
build on ubuntu:22.04 (gcc,false)	1m 16s
build on ubuntu:22.04 (clang,true)	1m 25s
build on ubuntu:20.04 (gcc,false)	1m 23s
build on ubuntu:20.04 (clang,false)	1m 45s
build on debian:12 (gcc,false)	1m 28s
build on debian:12 (clang,false)	1m 34s
build on debian:11 (gcc,false)	1m 20s
build on debian:11 (clang,false)	1m 34s
run unit tests (ubuntu:22.04, clang)	13m 33s
run unit tests (fedora:40, gcc)	16m 21s
	55m 14s

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