lkdocs

require 'openssl' 
def verify_sign(key, signature, data)
	# Verifies with a public key that the data was signed with their private key 
	pubkey = key.public_key 
	if pubkey.verify(OpenSSL::Digest::SHA256.new, signature, data)
		puts 'the signature is valid'
	else
		puts 'the signature is invalid'
	end
end