code: def parse_PRIK(chunk, encryption_key):
      
      decrypted = decode_aes256('cbc',
                                encryption_key[:16],
                                decode_hex(chunk.payload),
                                encryption_key)
  
      hex_key = re.match(br'^LastPassPrivateKey<(?P<hex_key>.*)>LastPassPrivateKey$', decrypted).group('hex_key')
      rsa_key = RSA.importKey(decode_hex(hex_key))
  
      rsa_key.dmp1 = rsa_key.d % (rsa_key.p - 1)
      rsa_key.dmq1 = rsa_key.d % (rsa_key.q - 1)
      rsa_key.iqmp = number.inverse(rsa_key.q, rsa_key.p)
  
      return rsa_key
docs: Parse PRIK chunk which contains private RSA key