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The following general security requirements [22] also apply to electronic banking systems:
- Confidentiality ensures that only authorized entities have access to the content of the exchanged information. E.g., an eavesdropper should not be able to find out what transactions a particular user is executing.
- Entity authentication: users should be sure that they are communicating with the real bank, before sending sensitive information to it; banks should know the identity of a user before processing its transactions. Read more about Java Assignment Help
- Data authentication — i.e., data origin authentication and data integrity — allows one to detect manipulation and replay of data, by unauthorized parties; data manipulation includes insertion, deletion and substitution. E.g., users and the bank want to be sure that the information they receive is genuine and fresh (not replayed).
- Non-repudiation prevents an entity from denying previous commitments or actions. E.g., a bank should be able to prove to a third party that a user performed a certain transaction, in case that user denies having performed it. Read more about Web Programming Assignment help
Communications Security
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In this section the security of the communication between the client and the bank is discussed. We restrict ourselves to the standard solutions that are used within almost all electronic banking systems, namely SSL/TLS and WTLS, for Internet and WAP banking respectively.
3–1- SSL/TLS/WTLS in general
Secure Sockets Layer (SSL) was originally an initiative of Netscape. The IETF adopted SSL for its Transport Layer Security (TLS) protocol [4]. The WAP Forum adapted TLS to create a wireless equivalent, Wireless Transport Layer Security (WTLS) [33]. Detailed background information on SSL/TLS can be found in Rescorla [25]. Although there are differences between (several versions of) these protocols, conceptually they provide the same security service: a secure channel between client and bank. Read more about Php Assignment Help
3–1–1- Secure Channel
SSL/TLS/WTLS provides a secure communication channel between the client and the bank. This means that the data that is transmitted between both ends is kept secret (confidentiality) and that tampering will be detected (data integrity); the bank is always authenticated; the client can be required to authenticate too. Note that many electronic banking systems do not rely on the client authentication feature of the secure channel, but rather implement a client authentication mechanism on top of this channel (see Section 4). Read more about Android Assignment Help
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