What is MD5?

MD5 (Message-Digest algorithm 5) is a widely used cryptographic hash function that produces a 128-bit hash value. While it was originally designed to be used as a cryptographic hash function, it has been found to suffer from extensive vulnerabilities. It is still suitable for non-cryptographic purposes, such as determining the partition for a particular key in a partitioned database.

What is SHA-256?

SHA-256 (Secure Hash Algorithm 256) is a member of the SHA-2 family. It is a cryptographic hash function designed by the NSA. SHA-256 is one of the most secure hashing functions on the market and is used extensively in blockchain technology (Bitcoin) and secure SSL certificates.

Hashing Best Practices

Use SHA-256 for Security

Never use MD5 or SHA-1 for sensitive data like passwords or digital signatures.

Check File Integrity

Always verify the hash of downloaded files to ensure they haven't been tampered with.

Salt Your Hashes

When hashing passwords, always add a unique 'salt' to protect against rainbow table attacks.