Parasitic Virus:- his is the most common form of virus. Such a virus attaches itself to executable files and...
When content of message change after sending the message by sender but before receiver receive it then we can...
Multiple columnar transposition technique (i.e simple columnar with multiple rounds) To improve basic Simple columnar transposition technique, we can...
The Following example explains about DES(Data Encryption Standard)Algorithm and how to implement it. Click here to download the PDF
In Asymmetric key cryptography, each person has two keys i.e. Public key& Private key. The public key is known...
Keys distribution in each technique Symmetric-key: It only needs one key to encrypt and decrypt the message. Both user...
DNS spoofing also known as pharming attack. As we know, using the Domain Name System (DNS), people can identify...
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