Guile-Gcrypt provides a Guile 2.x interface to a subset of the GNU Libgcrypt crytographic library, which is itself used by the GNU Privacy Guard (GPG).

Guile-Gcrypt provides modules for cryptographic hash functions, message authentication codes (MAC), public-key crytography, strong randomness, and more. It is implemented using the foreign function interface (FFI) of Guile.