Team

Module 1 Services , Mechanism and Attack Network Security model Keyed and keyless transposition technique Numericals: Playfair (But practice all) Module 2 Block cipher modes DES and Triple DES RSA Diffie...

Digital Signature : As the name sounds are the new alternative to sign a document digitally. It ensures that the message is sent by the intended user without any tampering by any third party (attacker)....

Answer to : User A and B want to use RSA to communicate securely. A chooses public key  as (7, 119) and B chooses public key as (13, 221). Calculate their private  keys. A wishes to send message m...

Answer to : What is need of Diffie-Hellman algorithm. User A and B decide  to use Diffie-Hellman algorithm to share a key.  They choose p = 23 and g = 5 as the public parameters.  Their secret keys...

X.509 is a digital certificate that is built on top of a widely trusted standard known as ITU or International Telecommunication Union X.509 standard, in which the format of PKI certificates is defined....

Thank You @supriya

Encrypt “The key is  hidden under the door” using playfair cipher with keyword “domestic”. Playfair Matrix in step 1 (draw it in step 1 only ) : D O M E S T I C A B F G H K L N P Q...

Playfair Matrix: D O M E S T I C A B F G H K L N P Q R U V W X Y Z Encrypted Message: CFARAEBOGCMVOSPNVTAYCFSOMWEP

Security services A processing or communication service that enhances the security of the data processing systems and the information transfers of an organization. These services are intended to counter...

prepare flowchart like diagrams to increase the length

Database security involves implementing measures to protect a database from unauthorized access, data corruption, and other threats. Its requirements include ensuring confidentiality, integrity, availability,...

Properties/  characteristics  of hash functions To be a reliable cryptographic tool, the hash function should have the following charactersitcs − Pre-Image Resistance According to this feature,...

A database is an organized collection of structured data stored electronically in a computer system. It is designed to efficiently manage, retrieve, and manipulate large volumes of data for various purposes....

Secure Socket Layer (SSL) provides security to the data that is transferred between web browser and server. SSL encrypts the link between a web server and a browser which ensures that all data passed...