signature

Without using 3rd party BouncyCastle library, is there a way to read a custom private key and sign the message ? (sha256 hash+encryption using private key) Technically, yes. Depending on what kind of key you have the answer gets more tricky. PKCS#8 PrivateKeyInfo (PEM "BEGIN PRIVATE KEY") If you have this type of file, and you're on .NET 4.6 or higher, then yes. You need to have the DER encoded (vs PEM encoded) data blob (see below if it's PEM). using (CngKey key = CngKey.Import(blob, CngKeyBlobFormat.Pkcs8PrivateBlob)) using (RSA rsa = new RSACng(key)) { return rsa.SignData(data,

class NewClass{ public static void main(String a){ System.out.print("Hello"); } } When I'm trying to execute above code, then it shows an error, main method not found . But when I changed public static void main(String a) to public static void main(String... a) or public static void main(String a[]) . Then, it works..!! So, My question is how many different ways we can write legal main method signature and what this signature public static void main(String... a) means ? Simply because that's the requirement of Java. A main method/entry point to a program must be a method declared as public

When trying to install a signed application (app-release.apk), a "Blocked by Play Protect" alert is shown and the app is not installed. However, an unsigned application (app-debug.apk) can be installed without problems. The error message: Play Protect doesn't recognise this app's developer. Apps from unknown developers can sometimes be unsafe. Why this error happened? What's the solution? I found the solution: Go to the link below and submit your application. Play Protect Appeals Submission Form After a few days, the problem will be fixed molood ayat I've found the better solution. If you want

I have to implement SSO with SAML for my company's website (as the relying party). An essential part off course is the verification of the signature. Here is the signature part of a sample SAML from our partner company (asserting party): <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"> <ds:SignedInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#"> <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#"/> <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" xmlns:ds="http://www.w3.org/2000/09

If one does dir() on some builtin callables (class constructors, methods, etc) on CPython 3.4, one finds out that many of them often have a special attribute called __text_signature__ , for example: >>> object.__text_signature__ '()' >>> int.__text_signature__ >>> # was None However the documentation for this is nonexistent. Furthermore, googling for the attribute name suggests that there is also another possible special attribute __signature__ , though I did not find any built-in functions that would have it. I do know they are related to the function argument signature, but nothing beyond

I'm trying to use a PEM(X.509) certificate (stored in a privateKey.pem file on disk) to sign messages sent via sockets in Java, but am having a lot of trouble finding an example that's close. I'm normally a C++ guy who's just stepping in to help on this project, so it's been a little difficult for me to put it all together into code that works when I'm unfamiliar with the APIs. Unfortunately, I'm limited to methods that come standard with Java (1.6.0 Update 16), so although I found a similar example using BouncyCastle 's PEMReader , it hasn't helped much on this particular project. My