Method: JOSE::JWK::KTY_OKP_Ed448.from_map

Defined in:
lib/jose/jwk/kty_okp_ed448.rb

.from_map(fields) ⇒ Object

JOSE::JWK callbacks

Raises:

  • (ArgumentError) 


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# File 'lib/jose/jwk/kty_okp_ed448.rb', line 9

def self.from_map(fields)
  if fields['kty'] == 'OKP' and fields['crv'] == 'Ed448' and fields['x'].is_a?(String)
    pk = JOSE.urlsafe_decode64(fields['x'])
    secret = nil
    if fields['d'].is_a?(String)
      secret = JOSE.urlsafe_decode64(fields['d'])
    end
    if pk.bytesize == PK_BYTES and (secret.nil? or secret.bytesize == SECRET_BYTES)
      if secret.nil?
        return JOSE::JWK::KTY_OKP_Ed448.new(pk), fields.except('kty', 'crv', 'x')
      else
        return JOSE::JWK::KTY_OKP_Ed448.new(secret + pk), fields.except('kty', 'crv', 'x', 'd')
      end
    end
  end
  raise ArgumentError, "invalid 'OKP' crv 'Ed448' JWK"
end