Shruti Speak's

Country Issues: Telecommunication Infrastructure Bandwidth PC penetration/Internet penetration Legal Framework   PKI(Public Key Infrastructure)   Delivery of public services by electronic means Payment gateways Education and awareness Human skills required for E Commerce: To develop Electronic Commerce solutions successfully across the Organization we have to build a reliable and scalable systems for- Security,   E-Commerce payments,    Supply-chain management, Sales force,warehousing and customer relations   Integrating all of this with existing back-end operations.   Internet-enabled Electronic Commerce requires-       Web Server technologies   Security  E xisting applications can be integrated  Web site development   Information Technology for Integrated Electronic Commerce needs- LAN/WAN infrastructure to implement Internet/Intranet Electronic Commerce solutions Education and Awareness on E Commerce: Private Institutes   Onli

SYMMETRIC ENCRYTION Symmetric encryption is the oldest and best technique that contains a secret key (a number, a word, or just a string)of random letters. This key is applied to the text of a message to change the content. Secret key is used to encrypt and decrypt the message by the sender and receiver. ·        Same digital key is used by sender and receiver to encrypt and decrypt message ·        Different set of keys are required for each transaction ·        Length of binary key is used to encrypt data ·        Advanced Encryption Standard (AES) – Most widely used symmetric key encryption. It uses 128,192, and 256-bit encryption keys ·        Other standards use keys with up to 2,048 bits ·        It provides confidentiality of the message . ·        These algorithms tend to be comparatively fast, but they can be used only when involved parties have already exchanged keys. ·        DES, 3DES and AES are examples of symmetric algorithms. ·        The 56-