Time stamp protocol
The Time-Stamp Protocol, or TSP is a cryptographic protocol for certifying timestamps using X.509 certificates and public key infrastructure. The timestamp is the signer's assertion that a piece of electronic data existed at or before a particular time.
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |
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See also
External links
- IETF RFC 3161, official specification
- IETF RFC 5816, ESSCertIDv2 Update for RFC 3161
- Documentation for the OpenSSL
ts(1)command. - OpenTSA was an open-source project to add time stamping functionalities to OpenSSL. (Archived July 12, 2012, at the Wayback Machine)
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