tailieunhanh - ecomm book hack proofing your ecommerce site phần 10

Chữ ký kỹ thuật số có thể được sử dụng để đảm bảo tính toàn vẹn của tập tin và các gói phần mềm đang được cài đặt là xác thực và chữ ký được gắn vào tập tin là downloaded | Hack Proofing Your E-Commerce Site Fast Track Appendix B 595 Chapter 3 Continued Code Signing Solution or More Problems 0 Digital signatures can be used to guarantee the integrity of files and that the package being installed is authentic and unmodified. This signature is attached to the file being signature identifies who is distributing the files and shows that they were unmodified since being certificate helps to keep malicious users from impersonating someone else. 0 A major problem with code signing is that you must rely on a third-party for checking authenticity. If a programmer provided fake information to a CA or stole the identity of another individual or company then it would be possible to effectively distribute a malicious program over the Internet. Another problem is if valid information is provided to the CA but the certificate is attached to software with bad or malicious code. 0 Using software such as Microsoft Certificate Server you can create your own digital certificates for use on a allows someone to self-sign their code with their own CA and make it appear that the code is valid and should verify the validity of the CA before accepting any files to avoid installing a hacker s code onto your system. Should I Outsource the Design of My Site 0 You should determine what information will need to be provided for the contractor to do her job right without compromising the security of your network and you should also determine what security policies will be used for the Web server to keep the contractor from accessing unauthorized data and whether these policies will impact existing policies . 0 A very real complication in outsourcing is that who you hire may not be who does the determining whom to hire you should inquire as to whether they will do the job themselves or use outside contractors. 596 Appendix B Hack Proofing Your E-Commerce Site Fast Track Chapter 3 Continued 0