Opaque keys support for the openssl command line #434

Job	Run time
compiler (gcc-7, ubuntu-20.04)	4m 27s
compiler (gcc-8, ubuntu-20.04)	4m 28s
compiler (gcc-9, ubuntu-20.04)	4m 49s
compiler (gcc-10, ubuntu-20.04)	4m 31s
compiler (gcc-11, ubuntu-22.04)	4m 37s
compiler (gcc-12, ubuntu-22.04)	5m 15s
compiler (gcc-13, ubuntu-22.04, ubuntu-toolchain-r/test)	8m 19s
compiler (clang-6.0, ubuntu-20.04)	4m 53s
compiler (clang-7, ubuntu-20.04)	5m 2s
compiler (clang-8, ubuntu-20.04)	4m 54s
compiler (clang-9, ubuntu-20.04)	5m 0s
compiler (clang-10, ubuntu-20.04)	4m 48s
compiler (clang-11, ubuntu-20.04)	4m 49s
compiler (clang-12, ubuntu-20.04)	4m 59s
compiler (clang-13, ubuntu-22.04)	5m 4s
compiler (clang-14, ubuntu-22.04)	5m 5s
compiler (clang-15, ubuntu-22.04, jammy)	5m 12s
compiler (clang-16, ubuntu-22.04, jammy)	5m 31s
compiler (clang-17, ubuntu-22.04, jammy)	5m 26s
	1h 37m 9s

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