Date Added: May 2010
Cryptography is a technique used to avoid unauthorized access of data. It is the technique of scrambling data to make it indecipherable to all, except the intended person. It includes encryption algorithm and reliable key(s). It is clear that key design flaws account for 50 percent of security problems, and architectural risk analysis plays an important role in any solid security program. The importance of key management has been profound, since most attacks to encryption algorithm are based on vulnerabilities caused by poorly designed and developed key management. The strength of the model depends upon the key length. Keys having short lengths are not suitable for secure transmission in multi-node Network (MN) because they results in more hacking time.