Category "sha256"

How to get R and S values from ECDSA signature using PHP

I am working on Signature of data using ECDSA from Starkbank library and I can get the base64 format of the signature value MEUCIALlD6Xsd0Xdj7XTrD2gP4Q3PlssTxLO

Spring Security 5 sha256 encoder

I have a problem with Spring Security 5 Basic authentication. I've configured Spring like this: @Configuration public class SecurityConfig extends WebS

My HMACSHA256 signature validation almost works but not quite

I wrote a method that takes a JWT as a request and checks if the signature is valid. This is the unit test: @Test public void isValid() { final JwtValidator

MASM SHA256 running from C#

I received a task in college to compare execution time for calculating SHA256 in C# and assembly. It is supposed to be a simple WPF app with file input and 2 bu

Unable to match results of php hash_hmac() and coldfusion hmac()

I am working on encrypting a URL and converting a working script from PHP to ColdFusion. I have completed 95% of the work but I am stuck at this point after try

How to hash a big file without having to manually process chunks of data?

When we want to get the hash of a big file in Python, with Python's hashlib, we can process chunks of data of size 1024 bytes like this: import hashlib m = has

Create SHA256 COM Object in Access VBA

I'm trying to create a SHA256 object from MS Access VBA. I'm running Access 2016 on a Windows machine with .NET 4.8. Public Function Base64_HMACSHA256(ByVal sTe

Generate HMAC SHA256 hash using key in C++

I am looking for some function or a way that would return HMAC SHA256 hash in C++ using secret key. I have seen documentation of Crypto++ and OpenSSL but it doe

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