JKJoydip Kanjilal

1. Article · Aug 27, 2026 · Joydip Kanjilal

   How to implement HMAC authentication in ASP.NET Core (opens the original)

   Excerpt · English

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   Security is a major concern for web applications and services that use the HTTP protocol. Although HTTP is a versatile protocol that can be used in many different platforms, it is vulnerable to security threats. Enter HMAC, or Hash-based Message Authentication Code, a widely used method of securing web APIs. HMAC is a cryptographic authentication technique that uses a hash function together with a shared secret key, i.e., the key is known to both the server and the client. HMAC not only gives yo

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2. Article · Jul 24, 2026 · Joydip Kanjilal

   How to execute queries in parallel using EF Core (opens the original)

   Excerpt · Critical tone · English

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   EF Core is Microsoft’s flagship ORM (object-relational mapper), the software layer that allows .NET developers to work with relational databases. The DbContext class is the core component of the EF Core framework for managing database operations. However, the DbContext class in EF Core is not thread-safe. Hence, if you share DbContext instances between multiple threads, you will often encounter data corruption issues and the InvalidOperationException. In this article, we’ll learn how we can exec

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