security

问题 I would like to safely be able to simulate open with O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW and O_CREAT | O_WRONLY | O_APPEND | O_NOFOLLOW on systems that do not support O_NOFOLLOW . I can somewhat achieve what I am asking for with: struct stat lst; if (lstat(filename, &lst) != -1 && S_ISLNK(lst.st_mode)) { errno = ELOOP; return -1; } mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH; int fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW, mode); but then I

问题 For the security purpose, I want to block emulator to use my app. I do not want my app to be installed on any emulator like genymotion,bluestack,droidx etc... I have an app where we have offer wall which contains no of android app, that use can install and earn points. Once they earn some points then they can withdraw using paypal account. Now the problem is some of the users are installing it via proxy or emulator.they are earning money like anything by using proxy or emulator.. Please help.

问题 I'm a little new to AOP, and got confused about the problem I'm facing. I have the Annotation @AuthorizeUser which acts on methods, on Presentation Layer. I need to check if User is authorized to execute that method or not. Here is the code for AuthorizeUserAspect : @Aspect public class AuthorizeUserAspect { @AuthoWired private UserService service; @Before(value = "@annotation(com.company.annotation.AuthorizeUser)") public void isAuthorized(JoinPoint jp) { // Check if the user has permission

问题 I'm a little new to AOP, and got confused about the problem I'm facing. I have the Annotation @AuthorizeUser which acts on methods, on Presentation Layer. I need to check if User is authorized to execute that method or not. Here is the code for AuthorizeUserAspect : @Aspect public class AuthorizeUserAspect { @AuthoWired private UserService service; @Before(value = "@annotation(com.company.annotation.AuthorizeUser)") public void isAuthorized(JoinPoint jp) { // Check if the user has permission

问题 I am working on a project that requires that i implement a mechanism for controlling data access to the content that displayed on the pages. First off to clarify, i am not refering to the ability for different users to log on to a specific page and or view specific pages. That is a different type of access control. I am more interested in the "Data Access" i.e. where multiple users can view the same page but the data that is displayed depend on the data access control privileges they have. I

问题 I just found, web.config with below settings in all the environments including prod. <machineKey validationKey="AutoGenerate,IsolateApps" decryptionKey="AutoGenerate,IsolateApps" validation="SHA1" decryption="Auto" /> Now, application is going to start using with load balancing. Would it create problem as its not using static machine keys ? If I change this key now to static validaitnKey and static decrptionKey then it creates another problem for already protected keys unable to decrypt.

问题 I have digitally signed a file(either .exe or .dll not a jar file) using SignTool. Signtool can also verify the digital signature. But my requirement is to check digital signature of file signed by signtool using java program. I searched on internet but didn't find any info. Could you please give me pointers regarding the same? Thanks for your suggestion. 回答1: Signing Code jarsigner -keystore c:/my.keystore -storepass ozziepassword e:/securityApplet.jar ozzie Verify Code: jarsigner -verify e:

问题 I'm running into some Medium trust issues with a few libraries. I'm able to reproduce the error with a sample and referencing that in my MVC probject. I'm trying to get pass this problem but don't understand what I'm missing. I keep getting this error: Inheritance security rules violated while overriding member: 'Temp.Class1.InitializeLifetimeService()'. Security accessibility of the overriding method must match the security accessibility of the method being overriden. I think understand the

问题 I'm running into some Medium trust issues with a few libraries. I'm able to reproduce the error with a sample and referencing that in my MVC probject. I'm trying to get pass this problem but don't understand what I'm missing. I keep getting this error: Inheritance security rules violated while overriding member: 'Temp.Class1.InitializeLifetimeService()'. Security accessibility of the overriding method must match the security accessibility of the method being overriden. I think understand the

问题 This web application will have a database table with columns uniqueid (64-bit int autoincrement field; key), token (64-byte binary field), and an accountid. After logging in with "Remember Me" checked, a random token will be generated. Then the SHA-512 hash of this token will be inserted into the database and the generated uniqueid retrieved. A cookie that contains the uniqueid and unhashed token is sent to the client. Every time a user visits the page with the cookie, the cookie's uniqueid