Design of cryptographic protocols, i.e. ways of using algorithms (primitives) to achieve one or more security goals like integrity, confidentiality, authenticity (maybe together with non-security-related goals). If you ask about a specific protocol, tag with its name instead (or additionally, if about its design).
Design of cryptographic protocols, i.e. ways of using algorithms (primitives) to achieve one or more security goals like integrity, confidentiality, authenticity (maybe together with non-security-related goals). If you ask about a specific protocol, tag with its name instead (or additionally, if about its design).
Background:
- Wikipedia: Cryptographic protocol
If you want to know about design of cryptographic primitives, see algorithm-design instead.
For example, many protocols involve a data compression algorithm, a secrecy-preserving encryption algorithm, and an authentication algorithm. Questions asking why we apply them in that order -- such as a or b -- should be tagged protocol-design.
Some protocol-specific tags: ssl (also for TLS), https, bitcoin, x509
