Comments (2)
Rationale
Not using WKD or public pubkey servers is making the implementation more reliable and simpler for provider and client implementors.
WKD would require an email address and public pubkeyservers often do not provide additional data to verify the pubkey.
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changes towards csd02
The standard document has meanwhile changed to be more explicit about this:
The public part of the OpenPGP key used to sign the CSAF documents MUST be available. It SHOULD also be available at a public key server.
For example, the public part of the OpenPGP key could be placed in a directory openpgp adjacent to the provider-metadata.json.
"public_openpgp_keys": [
{
"fingerprint": "8F5F267907B2C4559DB360DB2294BA7D2B2298B1",
"url": "https://keys.example.net/vks/v1/by-fingerprint/8F5F267907B2C4559DB360DB2294BA7D2B2298B1"
}
],
technical approach
- We can use the long fingerprint as filename in the
openpgp
directory. - The csaf_provider can use the
create
step to copy over the current public key in the directory, if it is not in there. Previous pubkeys stay in there. - The aggregator will copy all pubkeys in mirror mode and add its own pubkey if it does additional signatures.
- The
provider-metadata.json
shall list all pubkeys in that directory.
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Related Issues (20)
- Support legacy location at root for /security.txt HOT 6
- `csaf_checker` fails on nozominetworks.com HOT 2
- Improve GH Action checks HOT 1
- Consuming CSAF model from go v1.20 projects HOT 8
- `csaf_downloader` subfolder option not correct HOT 1
- Release 3.0.0 or 3.0.0-rc.2 HOT 1
- Time filtered advisory downloads should use the update instead of the publish date. HOT 2
- Print provider-metadata.json files per domain HOT 3
- Improve SHA* requests for downloader HOT 3
- CSAF checker: mixing domains, failing validations HOT 12
- Increase coverage to 75% HOT 6
- Make reuse conform
- Clarify if old sigs with expired keys can be okay
- changes.csv: check quoting HOT 2
- Change License to Apache 2.0 HOT 4
- Proposal: Extracting code from `main` packages into `server` and `client` packages
- Licensing of generated files HOT 2
- Improve logging for `csaf_aggregator` when no config file is present HOT 1
- Complete transition to structured logging for aggregator
- Some error messages from loading `provider-metadata.json` are dropped HOT 1
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