Abstract:
Information and access to information is important in
modern society. Network security is necessary to counter the
threats and make network safe to use. There are some methods
to prevent eavesdropping or falsification of information;
encryption of information, authentication of user identifies and
control of access rights. Public key cryptography is used to
protect digital data going through and insecure channel form
one place to another . Then sender’s authenticity certifies that
the data has not been falsified by using the public key
cryptography. Digital signature is a user authentication method
to prevent impersonations and symmetric key encryption is use
to encrypt plaintext. This paper presents agent can securely send
information over the communication channel and protect the
sending information against un-trusted hosts using hash
chaining approach. Chain rule can be secure travel over the
communication channel and certainly reach designated host.
