The perl-Crypt-RSA package was introduced in Fedora as part of the dependency
    chain for perl-Net-SSH-Perl. That package has since moved to using perl-CryptX
    instead so there is nothing left in Fedora that depends on perl-Crypt-RSA.
    
    The last release of Crypt-RSA was in 2009. Dana Jacobsen created an
    alternative implementation
    (https://metacpan.org/dist/Alt-Crypt-RSA-BigInt) that avoided the need for
    Math::Pari, which would be a big win itself due to the difficulty in packaging
    that module, but that implementation doesn't look to have gained any traction.
    
    I am therefore retiring the perl-Crypt-RSA package, along with some other
    packages that are only used as part of the dependency tree for perl-Crypt-RSA:
    
    perl-Crypt-Primes
    perl-Crypt-Random
    perl-Math-Pari
    libpari23