A SHA-2 hash algorithm, used for instance when signing DNSSEC zones (RSA/SHA-256 being the default) and for certificate thumbprints.
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In the Ultra Transcenders books
Each book explains SHA-256 in context, with comparison tables and the common traps.
Terms in this definition
- DNSSEC
A set of DNS extensions that add digital signatures to records, letting resolvers confirm a response is authentic rather than forged. Zones hosted in Azure Public DNS support signing.
- Certificate
Key Vault object holding an X.509 certificate, whose associated key and secret are managed alongside it.
Related terms
- Manifest digest
SHA-256 value uniquely identifying an image's or artefact's manifest, the JSON listing its layers. Pulling by it always returns exactly that version, even after a tag is moved elsewhere.