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In this post I am going to share a technique to troubleshoot “module could not be found” exception in managed/.NET application due to missing native DLL dependency. The difficulty in troubleshooting this exception is it doesn’t provide any information about the missing DLL(e.g. file name) apart from the exception message... [Read More]

In this post I am going to show how to compare X509 distinguished name using BouncyCastle. Distinguished names are used to specify the subject and issuer identity in X509 certificate. Distinguished name(DN) is like a LDAP directory name and contains one or more relative distinguished name(RDN) separated by comma. The... [Read More]

Recently I was working on task in which I had to generate a RSA key pair and export the public key to another application in PEM format. I implemented the task with help of BouncyCastle(code below) but the exported public key is not accepted by the other application. ```c# static... [Read More]

In my current task I have to construct private key object from its DER bytes. In OpenSSL I can easily do this with d2i_RSAPrivateKey function but in .NET this doesn’t seems to be an easy task. I hoped in BouncyCastle this can be done in single method call but it... [Read More]

In this post I am going explain how Notepad++ can be scripted with Python. I came to know about this as I wanted to analyse huge amount of console logs. [Read More]