Abstract:
Secure communication in physically
vulnerable networks depends upon encryption of material
passed between machines. It is feasible for each computer in the
network to encrypt and decrypt material efficiently with
arbitrary keys. Computer systems store large amount of
information, some of which is highly sensitive and valuable to
their users. Users can trust and rely on it only if the various
resources and information of a computer system are protected
against destruction and unauthorized access. In a computing
system, the data and information is shared among many users,
the system is mainly to apply the public-key encryption , to
provide or confidentially and data origin authentication ordata
integrity. This system encrypted messages with OAEP combined
the RSA. An asynchronous send simply queues the message for
transmission without waiting for it to be received by using the
public –key encryption, user responsible for kept their secret
private key and high-security data encryption which is
performed for the multiple receipients.