Time stamp protocol
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| Internet protocol suite |
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| Application layer |
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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.
[edit] External links
- IETF RFC 3161, official specification
- OpenTSA is an open-source project to add time stamping functionalities to OpenSSL.
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