Glossary term
What is SHA-256 (Secure Hash Algorithm)?
SHA-256 stands for Secure Hash Algorithm.
A one-way fingerprint of data. Example: Checking a download wasn't altered.
Learn it properly · System DesignLesson 51: Encryption & Secrets ManagementUnencrypted traffic “inside our network”, an unencrypted backup in a public bucket, a database password pushed to GitHub. Where to encrypt in transit and at rest, who holds the keys, how envelope encryption and KMS work, end-to-end encryption, and how to store, deliver and rotate secrets.