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Be more verbose in case of signature check failures (#361)

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* Simplify handling of signature keys. Be more verbose in case of signature check failures.

* Fixed check for having no OpenPGP loaded
This commit is contained in:
Sascha L. Teichmann 2023-05-05 15:02:53 +02:00 • committed by GitHub
parent f32fba683d
commit c263391821
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 20 deletions
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30
cmd/csaf_checker/processor.go
View file

@ -51,7 +51,7 @@ type processor struct {
pmdURL string
pmd256 []byte
pmd any
keys []*crypto.KeyRing
keys *crypto.KeyRing
invalidAdvisories topicMessages
badFilenames topicMessages
@ -458,7 +458,7 @@ func (p *processor) integrity(
// Check if we are in checking time interval.
if p.ageAccept != nil && !p.ageAccept(
time.Date(
year, 12, 31, // Assume last day og year.
year, 12, 31, // Assume last day of year.
23, 59, 59, 0, // 23:59:59
time.UTC)) {
continue
@ -621,18 +621,11 @@ func (p *processor) integrity(
continue
}
if len(p.keys) > 0 {
if p.keys != nil {
pm := crypto.NewPlainMessage(data.Bytes())
t := crypto.GetUnixTime()
var verified bool
for _, key := range p.keys {
if err := key.VerifyDetached(pm, sig, t); err == nil {
verified = true
break
}
}
if !verified {
p.badSignatures.error("Signature of %s could not be verified.", u)
if err := p.keys.VerifyDetached(pm, sig, t); err != nil {
p.badSignatures.error("Signature of %s could not be verified: %v.", u, err)
}
}
}
@ -1369,15 +1362,18 @@ func (p *processor) checkPGPKeys(_ string) error {
p.badPGPs.error("Fingerprint of public OpenPGP key %s does not match remotely loaded.", u)
continue
}
keyring, err := crypto.NewKeyRing(ckey)
if err != nil {
if p.keys == nil {
if keyring, err := crypto.NewKeyRing(ckey); err != nil {
p.badPGPs.error("Creating store for public OpenPGP key %s failed: %v.", u, err)
continue
} else {
p.keys = keyring
}
} else {
p.keys.AddKey(ckey)
}
p.keys = append(p.keys, keyring)
}
if len(p.keys) == 0 {
if p.keys == nil {
p.badPGPs.info("No OpenPGP keys loaded.")
}
return nil

5
cmd/csaf_checker/reporters.go
View file

@ -301,7 +301,8 @@ func (r *publicPGPKeyReporter) report(p *processor, domain *Domain) {
return
}
req.Messages = p.badPGPs
if len(p.keys) > 0 {
req.message(InfoType, fmt.Sprintf("%d public OpenPGP key(s) loaded.", len(p.keys)))
if p.keys != nil {
req.message(InfoType, fmt.Sprintf("%d public OpenPGP key(s) loaded.",
p.keys.CountEntities()))
}
}