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This is a filter library that's used exclusively by kcfd;

it's 32-bit-only because kcfd is 32-bit-only.

libkcfd forces interposition of pkcs11_softtoken.so.1 into libkmf

when used by kcfd as part of the Cryptographic Framework's FIPS-140

project, to ensure that only pkcs11_softtoken.so.1 is used for

validation of the FIPS-140 boundary.

libelfsign could not be the interposer, because it would prevent

the elfsign(1) command from accessing actual PKCS#11 tokens when using

the -T option.