lib/jwt/jwa/rsa.rb
# frozen_string_literal: true
module JWT
module JWA
module Rsa
module_function
SUPPORTED = %w[RS256 RS384 RS512].freeze
def sign(algorithm, msg, key)
unless key.is_a?(OpenSSL::PKey::RSA)
raise EncodeError, "The given key is a #{key.class}. It has to be an OpenSSL::PKey::RSA instance"
end
key.sign(OpenSSL::Digest.new(algorithm.sub('RS', 'sha')), msg)
end
def verify(algorithm, public_key, signing_input, signature)
public_key.verify(OpenSSL::Digest.new(algorithm.sub('RS', 'sha')), signature, signing_input)
rescue OpenSSL::PKey::PKeyError
raise JWT::VerificationError, 'Signature verification raised'
end
end
end
end