librdf-crypt-perl binary package in Ubuntu Trusty arm64

 Resource Description Framework (RDF) is a standard model for data
 interchange on the Web.
 .
 RDF-Crypt provides a variety of objects and methods for
 cryptographically manipulating (encrypting, decrypting, signing and
 verifying) RDF graphs using RSA and WebID.
 .
 RDF-Crypt uses a role-based architecture. Classes like
 RDF::Crypt::Encrypter are in fact very slim wrappers around collections
 of roles. Most of the interesting behaviour is documented in the role
 modules.

Source package