I am trying to generate a key using Java. To be honest I am not that experienced with keys, password, ciphers and encryption. And from whatever I have searched from this site, I see it as a very common problem. I did some reading and came up with this code that I wrote: This is modified from an answer that
Tag: cryptography
SHA1 signature created in Java not being verified in PHP
I am creating an RSA signature in Java and sending it in the Auth header to a PHP server which is then verifying it. The problem is that although the signature is being verified in Java, it is failing in PHP. How do I fix this? My PHP code where I’m verifying the sign: Update: I am now signing like
Authorized responder for an OCSP response not validating with CertPathValidator
I’m trying to validate a certificate path with stapled OCSP checking through CertPathValidator. There might be some RFC-protocol that prohibits what I expect to validate just fine, but I’ve been unable to find this. Some paint art to describe relations between certificates discussed: overview When verifying the certificate path I get an exception stating that the responder is not authorized
Java SecureRandom declaration should be static class specific or can be instance specific
I am trying to use a SecureRandom to generate random numbers in my java project. But I am a little confused as how to keep my object for SecureRandom. Should it be a static class member. I dont intend to call this from outside. Below is my current implementation : Is this the correct way to use SecureRandom in java
Is SecureRandom weaken when seed with Random?
Could a seed from java.util.Random for java.security.SecureRandom weaken the cryptographically strong random number generator? I saw this code and wonder why this is done in that specific way. From the documentation, the call of setSeed will never reduce randomness. So why is setSeed called anyway? public void setSeed(long seed) Reseeds this random object, using the eight bytes contained in the
Decrypt Java AES/CBC/PKCS5Padding with CryptoJS
I have some problem decrypting text with CryptoJS that has been encrypted with Java. The decryption should be done with AES/CBC/PKCS5Padding. The encrypted string is base64 encoded and I decode it before trying to decrypt the string. This is how the Java code looks like: And this is how I attempt to decrypt it in CryptoJS. SharedSecretKey is both the
trying to convert Java RSA-PSS signature verification code (with SHA256 hash, SHA1 MGF hash) to Python
Here’s my Java code, which successfully verifies the signature, as expected. Signature sig = Signature.getInstance(“RSASSA-PSS”); PSSParameterSpec pssParams = new PSSParameterSpec( “…
How read a PKCS8 encrypted Private key which is also encoded in DER with bouncycastle?
I have tried answers of these questions: Bouncy Castle : PEMReader => PEMParser Read an encrypted private key with bouncycastle/spongycastle However as my encrypted key is encoded in DER when I call object is null. I can convert it to PEM with this openssl’s command (it decrypts the key too) but I need to read the key in its original
Is there any stable serialization method for different languages?
In my project we have an API, and many clients may send transactions to this API. Transactions should be signed. Clients may be written in any language (C++, C#, python, go, whatever), with any CPU …
CMS signature SHA1+RSA with PEM format – Java
I need to generate a CMS with SHA1+RSA detached signature in PEM format over a xml file input. I need to make this from Java code in runtime. I need to avoid the use of an external tool like OpenSSL. This is because we need invoke some services with the generated signature from Java and manage error properly if an