Added an optional feature to compare the local time with a set of trusted ntp servers #143
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ntp servers. If the local time is diffing more than a configured threshold, the service shuts down itself. Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Codecov Report
@@ Coverage Diff @@
## main #143 +/- ##
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- Coverage 53.79% 49.64% -4.15%
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Files 15 18 +3
Lines 712 846 +134
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+ Hits 383 420 +37
- Misses 285 382 +97
Partials 44 44
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kommendorkapten
changed the title
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The motivation behind this PR is that for a TSA it's extremely important that we are using a time source that's accurate. Just relying on the host's time can be dangerous, as NTP may not be enabled, or the configured NTP server is not correct. Having the process itself verifying its time with external thirdparty servers is defence in depth, and following the "trust but verify" philosophy. |
Signed-off-by: Fredrik Skogman <[email protected]>
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One thing we discussed in #133 was using NTP servers that provided NTS. I'm not sure if there are enough, but something to consider, it would be great if we could secure the NTP connections
| // RandomChoice returns a random selection of n items from the slic s. | ||
| // The choice is made using a PSEUDO RANDOM selection. | ||
| // If n is greater than len(s), an empty slice is returned. | ||
| func RandomChoice[T any](s []T, n int) []T { |
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ooooo how fancy, using generics :) I love it!
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Haha, yeah it's the first generics code I wrote, and actually felt natural to make this function like this :)
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I think this is the first generics code I've seen in sigstore repos!
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
Signed-off-by: Fredrik Skogman <[email protected]>
If the local time is diffing more than a configured threshold, the service shuts down itself.
Signed-off-by: Fredrik Skogman [email protected]
Release Note