Using Data Encryption
Explore how to use one-way hashing algorithms like MD5 and SHA256 to securely encrypt sensitive data in PostgreSQL. Understand how this irreversible encryption protects credentials, how to implement it for password storage, and its limitations. Gain practical knowledge to protect user data effectively.
We'll cover the following...
We'll cover the following...
One-way hashing
Hashing is a very useful tool for encrypting data in PostgreSQL. When we use one-way hashing, the transformation of our data from plaintext to encrypted text happens at an atomic level. That means it’s irreversible and can’t be undone once completed. The encryption algorithm ensures that the original data can never be reconstructed from the encrypted data.
One-way hashing is sometimes called ...