Faker::Crypto Available since version 1.6.4. Faker::Crypto.md5 #=> "6b5ed240042e8a65c55ddb826c3408e6" Faker::Crypto.sha1 #=> "4e99e31c51eef8b2d290e709f757f92e558a503f" Faker::Crypto.sha256 #=> "51e4dbb424cd9db1ec5fb989514f2a35652ececef33f21c8dd1fd61bb8e3929d"