class JWT::JWA::Rsa

Implementation of the RSA family of algorithms

def initialize(alg)

def initialize(alg)
  @alg = alg
  @digest = alg.sub('RS', 'SHA')
end

def sign(data:, signing_key:)

def sign(data:, signing_key:)
  raise_sign_error!("The given key is a #{signing_key.class}. It has to be an OpenSSL::PKey::RSA instance") unless signing_key.is_a?(OpenSSL::PKey::RSA)
  raise_sign_error!('The key length must be greater than or equal to 2048 bits') if signing_key.n.num_bits < 2048
  signing_key.sign(OpenSSL::Digest.new(digest), data)
end

def verify(data:, signature:, verification_key:)

def verify(data:, signature:, verification_key:)
  verification_key.verify(OpenSSL::Digest.new(digest), signature, data)
rescue OpenSSL::PKey::PKeyError
  raise JWT::VerificationError, 'Signature verification raised'
end