  Information Security has become an important issue in modern world as the
popularity and infiltration of internet commerce and communication technologies
has emerged, making them a prospective medium to the security threats. To
surmount these security threats modern data communications uses cryptography an
effective, efficient and essential component for secure transmission of
information by implementing security parameter counting Confidentiality,
Authentication, accountability, and accuracy. To achieve data security
different cryptographic algorithms (Symmetric & Asymmetric) are used that
jumbles data in to scribbled format that can only be reversed by the user that
have to desire key. This paper presents a comprehensive comparative analysis of
different existing cryptographic algorithms (symmetric) based on their
Architecture, Scalability, Flexibility, Reliability, Security and Limitation
that are essential for secure communication (Wired or Wireless).
