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Converting int to byte[] in C#: Big-Endian Implementation Based on RFC1014 Specification

C#int to byte conversion RFC1014 specification big-endian BinaryPrimitives byte order

This article provides a comprehensive analysis of methods for converting int to byte[] in C#, focusing on RFC1014 specification requirements for 32-bit signed integer encoding. By comparing three implementation approaches—BitConverter, bit manipulation, and BinaryPrimitives—it thoroughly examines endianness issues and their solutions. The article highlights the BinaryPrimitives.WriteInt32BigEndian method in .NET Core 2.1+ as the optimal solution, discussing applicability across different scenarios.