Binary transfer
An encrypted message is a coded message that can be decoded by a private key. Such messages appear in binary format. A high quality encrypted message is one that is difficult to decode. The longer the message the more difficult it is to decode. Thus a message with 128 bits or digits is more difficult to decode than one with 48 bits. Amitabha Bagchi of the Indian Institute of Technology, Delhi, says this is because computational power is infinite. Any encrypted message can be decrypted without a private key if we have infinite computational power, he says.