Generating a symmetric AES256 key

IMPORT xml

MAIN
  DEFINE key xml.CryptoKey
  LET key = xml.CryptoKey.Create("http://www.w3.org/2001/04/xmlenc#aes256-cbc")
  TRY
    CALL key.generateKey(NULL)
    DISPLAY "Key size (in bits) : ",key.getSize() # displays 256 (bits)
    DISPLAY "Key type : ",key.getType() # displays SYMMETRIC
    DISPLAY "Key usage : ",key.getUsage() # displays ENCRYPTION
  CATCH
    DISPLAY "Unable to generate key :",STATUS
  END TRY
END MAIN

Note: All keys in PEM or DER format were created with the OpenSSL tool.