Lightweight cryptographic signing and verifying tool

 Similar to GNU Privacy Guard (GPG), signify is the tool which
 OpenBSD uses to cryptographically sign its releases, so that
 you can be sure that you are actually getting a release made by
 OpenBSD, as opposed to a malicious forgery designed to look
 the same.
 .
 Signify's usage is not limited to OpenBSD's releases, however -
 it can be used to sign anything.
 .
 So that it will work on Linux, the version of signify provided
 in this package is not exactly the same as the version provided
 in OpenBSD's CVS tree.
 .
 Note that for convenience OpenBSD's public keys are shipped in the
 signify-openbsd-keys package, but you can also download them
 yourself.