public

问题 I've been trying to encrypt a password with a public RSA key that is sent to me by the server. var csp = new CspParameters(1, "Microsoft Strong Cryptographic Provider"); RSACryptoServiceProvider RSA = new RSACryptoServiceProvider(1280, csp); byte[] key = ByteUtils.HexToBytes(client.RSAKey); RSA.ImportCspBlob(key); byte[] encrypted = RSA.Encrypt(Encoding.ASCII.GetBytes(password), true); The hex key is provided in such format: string key =

问题 I just want to make sure I got the idea of public and private right. Regarding the private access specifier, does it mean: Only accessed inside the class Cannot be accessed from the object of the class unless there are public class methods that can be used to access them ( Can other objects use those public functions? ) No other object can access them And for public: Accessed from the object of the class Accessed from any other object Is that right? 回答1: I think there is an issue of

问题 Making a 3D Tic Tac Toe game using class inheritance. Compiler error as follows. line: 43 [Error] 'void CPUClass::cpu()' is private 190 [Error] within this context Looking at my code, I've clearly defined cpu() as public. Any ideas what I'm overlooking? #include <iostream> #include <time.h> //seeding random #include <windows.h> using namespace std; class TTT { public: void setup(); void display(); void cpu(); void player(); void check(int); protected: int cp; //comp points int pp; //player

问题 Let say I've a protocol that I need to make public. Additionally I've a class that implements this protocol, but in a way that I want to keep internal. So I'd like to do something like: public protocol CustomDelegate { func didLoad() } public class Foo { public var delegate: CustomDelegate? var internalDelegate: CustomDelegate? ... } public class Bar { var foo: Foo init() { self.foo = Foo() self.foo.internalDelegate = self } } extension Bar: CustomDelegate { func didLoad() { print("bar has

问题 I did a little experiment . On the LoginButton_Click() event from a Login.aspx button, I have a code that does something like: MyClass.MyPublicStaticString = LoginNameTextBox.Text; After logging in it goes to Default.aspx by FormsAuthentication. On Default.aspx, I have a code on Page_Load() like this: Label1.Text = MyClass.MyPublicStaticString.ToString(); After waiting for a few minutes, Label1.Text becomes empty even before my login timeout expires. What is happening here? 回答1: Static fields

问题 We can write a java program with one non-public class containing a main method -- it'll compile and run just fine. Why do people make the main class public? Is there any benefit? 回答1: There is no benefit of making the class public for the sake of it having a main method. That being said, there isn't really much of a reason not to either. Chances are the main class is either going to be very short with few, if any, substantial methods in it, or it's going to be baked into one of the core

问题 I have a main class that has a thread pool, which is used by quite a few other classes for performing actions on a database. I currently have a getter method to get the pool which works fine but seems a bit clumsy. Are there any circumstances where it is acceptable to use a public field instead of getter/setter methods? 回答1: Are there any circumstances where it is acceptable to use a public field instead of getter/setter methods? The main reason that public fields are bad are that they expose

问题 Can we simulate private and protected access specifiers in python? Name Mangling eg: __var=10 can simulate private but its viable to be accessed outside easily via the object. object._className__var So is there a way we could simulate or does python a solution directly which I am not aware of? 回答1: Python does not have mandatory access control like some other languages you may be used to. The philosophy of the language is "We are all consenting adults". By convention, private attributes are

问题 I am pinning public key in my app as part of security measures, for that I have extracted public key from my PEM certificate which looks like -----BEGIN PUBLIC KEY----- MIIBIj....IDAQAB -----END PUBLIC KEY----- However in sample code of OWASP, we do see code to compare DER encoded public key, // DER encoded public key private static String PUB_KEY = "30820122300d06092a864886f70d0101" + "0105000382010f003082010a0282010100b35ea8adaf4cb6db86068a836f3c85" +

问题 I am programming a game in java, and as the question title suggestions i am using public fields in my classes. (for the time being) From what i have seen public fields are bad and i have some understanding why. (but if someone could clarify why you should not use them, that would be appreciated) The thing is that also from what i have seen, (and it seems logical) is that using private fields, but using getters and setters to access them is also not good as it defeats the point of using