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What
is e-TS?
Why do we need e-TS?
How does e-TS work?
What is the technology behind?
Time-Stamp Authority and Time-Stamp Service
Provider?
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How
does e-TS work?
Steps of
generating a timestamp:
| 1 |
A person
intends to obtain a timestamp for a piece of electronic data
he possesses. |
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| 2 |
The
person signs the data using his private key and generates a
digital signature. |
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| 3 |
A fingerprint
(technically, a hash value) for the digital signature is generated
on his computer. |
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4 |
The
fingerprint is sent to the Time-Stamping Authority (TSA). |
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| 5 |
The
TSA generates a timestamp with the fingerprint, the date and
time obtained from an accurate time
source and the TSA's digital
signature. |
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| 6 |
The
timestamp is sent back to the sender. |
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| 7 |
The
TSA keeps a record of the timestamp for future verification
and retrieval. |
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