class JWT::JWA::Ps

Attributes

digest_algorithm[R]

Public Class Methods

new(alg) click to toggle source
# File lib/jwt/jwa/ps.rb, line 8
def initialize(alg)
  @alg = alg
  @digest_algorithm = alg.sub('PS', 'sha')
end

Public Instance Methods

sign(data:, signing_key:) click to toggle source
# File lib/jwt/jwa/ps.rb, line 13
def sign(data:, signing_key:)
  unless signing_key.is_a?(::OpenSSL::PKey::RSA)
    raise_sign_error!("The given key is a #{signing_key.class}. It has to be an OpenSSL::PKey::RSA instance.")
  end

  signing_key.sign_pss(digest_algorithm, data, salt_length: :digest, mgf1_hash: digest_algorithm)
end
verify(data:, signature:, verification_key:) click to toggle source
# File lib/jwt/jwa/ps.rb, line 21
def verify(data:, signature:, verification_key:)
  verification_key.verify_pss(digest_algorithm, signature, data, salt_length: :auto, mgf1_hash: digest_algorithm)
rescue OpenSSL::PKey::PKeyError
  raise JWT::VerificationError, 'Signature verification raised'
end