Hash Functions: MD5 vs SHA256 Explained

Hash functions are fundamental to cryptography and data integrity. This guide compares MD5 and SHA256 hash algorithms, explaining their differences, use cases, security implications, and when to use each.

MD5 is a 128-bit hash function that's fast but considered cryptographically broken due to vulnerability to collision attacks. SHA256 is a 256-bit hash function that's more secure and recommended for cryptographic applications.

Hash functions are used for password storage, file verification, digital signatures, and blockchain technology. Understanding the differences between hash algorithms helps developers choose the right tool for their security requirements.