Here is a revised patch series adding signify and its dependency, libbsd. The only difference is the use of 'non-copyleft' to refer to the Beerware license in libbsd and the IBM license in signify.
Leo Famulari (2): gnu: Add libbsd. gnu: Add signify. gnu-system.am | 1 + gnu/packages/crypto.scm | 35 +++++++++++++++++++++++++++++++++++ gnu/packages/libbsd.scm | 43 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 79 insertions(+) create mode 100644 gnu/packages/libbsd.scm -- 2.7.3