VSRD International Journals
Security is about managing risk, not eliminating it. Cryptography is an important part of any security strategy and is increasingly being used in the background in a very wide range of situations. Developments in computer technology mean that ciphers that earlier would have been considered completely secure may now have become insecure or only moderately secure. At the same time, these same advances have made it possible to use longer and longer keys in reasonable time frames while new algorithms or variants on earlier ones are being used.