Improving Security Methods for E-Commerce Websites

if you want to learn a new methods about how to increase your security sessions during buying or selling any kind of goods, please read my book. my book is interested in the following topics 1- Web Security 2- E-Commerce Websites 3- Encryption and decryption new complex security methods. 4- improving Twofish security method. 5- How to Increse the security between E-Commerce Websites and Online Banking system during purchasing any goods. 6- suggest more than two new powerful security methods depending on irreducible polynomials