mirror of
https://github.com/pgpainless/pgpainless.git
synced 2024-06-17 00:54:50 +02:00
More refactoring for WebOfTrust
This commit is contained in:
parent
1b19ba8766
commit
03c586db9d
GPG key ID:
62BEE9264BF17311
|
|
@ -73,6 +73,153 @@ class WebOfTrust(private val certificateStore: PGPCertificateStore) {
|
|||
private class PGPNetworkFactory private constructor(validatedCertificates: List<KeyRingInfo>,
|
||||
private val policy: Policy,
|
||||
private val referenceTime: ReferenceTime) {
|
||||
private val networkBuilder: Network.Builder = Network.builder()
|
||||
|
||||
// certificates keyed by fingerprint
|
||||
private val byFingerprint: MutableMap<Fingerprint, KeyRingInfo> = HashMap()
|
||||
|
||||
// certificates keyed by (sub-) key-id
|
||||
private val byKeyId: MutableMap<Long, MutableList<KeyRingInfo>> = HashMap()
|
||||
|
||||
// nodes keyed by fingerprint
|
||||
private val nodeMap: MutableMap<Fingerprint, CertSynopsis> = HashMap()
|
||||
|
||||
init {
|
||||
validatedCertificates.forEach { indexAsNode(it) }
|
||||
validatedCertificates.forEach { findEdgesWithTarget(it) }
|
||||
}
|
||||
|
||||
private fun indexAsNode(cert: KeyRingInfo) {
|
||||
|
||||
// certificate expiration date
|
||||
val expirationDate: Date? = try {
|
||||
cert.getExpirationDateForUse(KeyFlag.CERTIFY_OTHER)
|
||||
} catch (e: NoSuchElementException) {
|
||||
// Some keys are malformed and have no KeyFlags
|
||||
return
|
||||
}
|
||||
|
||||
// index by fingerprint
|
||||
val certFingerprint = Fingerprint(cert.fingerprint)
|
||||
byFingerprint.putIfAbsent(certFingerprint, cert)
|
||||
|
||||
// index by key-ID
|
||||
cert.validSubkeys.forEach {
|
||||
byKeyId.getOrPut(it.keyID) { mutableListOf() }.add(cert)
|
||||
}
|
||||
|
||||
// map user-ids to revocation states
|
||||
val userIds = buildMap<String, RevocationState> {
|
||||
cert.userIds.forEach {
|
||||
put(it, RevocationState(cert.getUserIdRevocation(it)))
|
||||
}
|
||||
}
|
||||
|
||||
val node = CertSynopsis(certFingerprint,
|
||||
expirationDate,
|
||||
RevocationState(cert.revocationSelfSignature),
|
||||
userIds)
|
||||
|
||||
nodeMap[certFingerprint] = node
|
||||
networkBuilder.addNode(node)
|
||||
}
|
||||
|
||||
private fun findEdgesWithTarget(validatedTarget: KeyRingInfo) {
|
||||
val validatedTargetKeyRing = KeyRingUtils.publicKeys(validatedTarget.keys)
|
||||
val targetFingerprint = Fingerprint(OpenPgpFingerprint.of(validatedTargetKeyRing))
|
||||
val targetPrimaryKey = validatedTargetKeyRing.publicKey!!
|
||||
val target = nodeMap[targetFingerprint]!!
|
||||
|
||||
// Direct-Key Signatures (delegations) by X on Y
|
||||
val delegations = SignatureUtils.getDelegations(validatedTargetKeyRing)
|
||||
for (delegation in delegations) {
|
||||
processDelegation(targetPrimaryKey, target, delegation)
|
||||
}
|
||||
|
||||
// Certification Signatures by X on Y over user-ID U
|
||||
val userIds = targetPrimaryKey.userIDs
|
||||
while (userIds.hasNext()) {
|
||||
val userId = userIds.next()
|
||||
val userIdSigs = SignatureUtils.get3rdPartyCertificationsFor(userId, validatedTargetKeyRing)
|
||||
userIdSigs.forEach {
|
||||
processCertificationOnUserId(targetPrimaryKey, target, userId, it)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun processDelegation(targetPrimaryKey: PGPPublicKey,
|
||||
target: CertSynopsis,
|
||||
delegation: PGPSignature) {
|
||||
// There might be more than one cert with a subkey of matching key-id
|
||||
val issuerCandidates = byKeyId[delegation.keyID]
|
||||
?: return // missing issuer cert
|
||||
for (candidate in issuerCandidates) {
|
||||
val issuerKeyRing = KeyRingUtils.publicKeys(candidate.keys)
|
||||
val issuerFingerprint = Fingerprint(OpenPgpFingerprint.of(issuerKeyRing))
|
||||
val issuerSigningKey = issuerKeyRing.getPublicKey(delegation.keyID)!!
|
||||
val issuer = nodeMap[issuerFingerprint]!!
|
||||
try {
|
||||
val valid = SignatureVerifier.verifyDirectKeySignature(delegation, issuerSigningKey,
|
||||
targetPrimaryKey, policy, referenceTime.timestamp)
|
||||
if (valid) {
|
||||
networkBuilder.addEdge(fromDelegation(issuer, target, delegation))
|
||||
return // we're done
|
||||
}
|
||||
} catch (e: SignatureValidationException) {
|
||||
val targetFingerprint = OpenPgpFingerprint.of(targetPrimaryKey)
|
||||
LOGGER.warn("Cannot verify signature by $issuerFingerprint on cert of $targetFingerprint", e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun processCertificationOnUserId(targetPrimaryKey: PGPPublicKey,
|
||||
target: CertSynopsis,
|
||||
userId: String,
|
||||
certification: PGPSignature) {
|
||||
// There might be more than one cert with a subkey of matching key-id
|
||||
val issuerCandidates = byKeyId[certification.keyID]
|
||||
?: return // missing issuer cert
|
||||
for (candidate in issuerCandidates) {
|
||||
val issuerKeyRing = KeyRingUtils.publicKeys(candidate.keys)
|
||||
val issuerFingerprint = Fingerprint(OpenPgpFingerprint.of(issuerKeyRing))
|
||||
val issuerSigningKey = issuerKeyRing.getPublicKey(certification.keyID)!!
|
||||
val issuer = nodeMap[issuerFingerprint]!!
|
||||
try {
|
||||
val valid = SignatureVerifier.verifySignatureOverUserId(userId, certification,
|
||||
issuerSigningKey, targetPrimaryKey, policy, referenceTime.timestamp)
|
||||
if (valid) {
|
||||
networkBuilder.addEdge(fromCertification(issuer, target, userId, certification))
|
||||
return // we're done
|
||||
}
|
||||
} catch (e: SignatureValidationException) {
|
||||
LOGGER.warn("Cannot verify signature for '$userId' by $issuerFingerprint" +
|
||||
" on cert of ${target.fingerprint}", e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun Fingerprint(fingerprint: OpenPgpFingerprint) = Fingerprint(fingerprint.toString())
|
||||
|
||||
private fun RevocationState(revocation: PGPSignature?): RevocationState {
|
||||
if (revocation == null) {
|
||||
return RevocationState.notRevoked()
|
||||
}
|
||||
val revocationReason = SignatureSubpacketsUtil.getRevocationReason(revocation)
|
||||
?: return RevocationState.hardRevoked()
|
||||
return if (RevocationAttributes.Reason.isHardRevocation(revocationReason.revocationReason))
|
||||
RevocationState.hardRevoked()
|
||||
else
|
||||
RevocationState.softRevoked(revocation.creationTime)
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the constructed, initialized [Network].
|
||||
*
|
||||
* @return finished network
|
||||
*/
|
||||
fun buildNetwork(): Network {
|
||||
return networkBuilder.build()
|
||||
}
|
||||
|
||||
companion object {
|
||||
@JvmStatic
|
||||
|
|
@ -109,157 +256,5 @@ class WebOfTrust(private val certificateStore: PGPCertificateStore) {
|
|||
}
|
||||
}
|
||||
|
||||
private val networkBuilder: Network.Builder = Network.builder()
|
||||
|
||||
// certificates keyed by fingerprint
|
||||
private val byFingerprint: MutableMap<Fingerprint, KeyRingInfo> = HashMap()
|
||||
|
||||
// certificates keyed by (sub-) key-id
|
||||
private val byKeyId: MutableMap<Long, MutableList<KeyRingInfo>> = HashMap()
|
||||
|
||||
// certificate synopses keyed by fingerprint
|
||||
private val certSynopsisMap: MutableMap<Fingerprint, CertSynopsis> = HashMap()
|
||||
|
||||
init {
|
||||
validatedCertificates.forEach { indexAsNode(it) }
|
||||
validatedCertificates.forEach { findEdgesWithTarget(it) }
|
||||
}
|
||||
|
||||
private fun indexAsNode(cert: KeyRingInfo) {
|
||||
|
||||
// index by fingerprint
|
||||
val certFingerprint = Fingerprint(cert.fingerprint)
|
||||
if (!byFingerprint.containsKey(certFingerprint)) {
|
||||
byFingerprint[certFingerprint] = cert
|
||||
}
|
||||
|
||||
// index by key-ID
|
||||
var certsWithKey = byKeyId[cert.keyId]
|
||||
// noinspection Java8MapApi
|
||||
if (certsWithKey == null) {
|
||||
certsWithKey = mutableListOf()
|
||||
// TODO: Something is fishy here...
|
||||
for (key in cert.validSubkeys) {
|
||||
byKeyId[key.keyID] = certsWithKey
|
||||
}
|
||||
}
|
||||
certsWithKey.add(cert)
|
||||
val userIds: MutableMap<String, RevocationState> = HashMap()
|
||||
for (userId in cert.userIds) {
|
||||
val state = RevocationState(cert.getUserIdRevocation(userId))
|
||||
userIds[userId] = state
|
||||
}
|
||||
|
||||
// index synopses
|
||||
val expirationDate: Date? = try {
|
||||
cert.getExpirationDateForUse(KeyFlag.CERTIFY_OTHER)
|
||||
} catch (e: NoSuchElementException) {
|
||||
// Some keys are malformed and have no KeyFlags
|
||||
return
|
||||
}
|
||||
val node = CertSynopsis(certFingerprint,
|
||||
expirationDate,
|
||||
RevocationState(cert.revocationSelfSignature),
|
||||
userIds)
|
||||
certSynopsisMap[certFingerprint] = node
|
||||
networkBuilder.addNode(node)
|
||||
}
|
||||
|
||||
private fun findEdgesWithTarget(validatedTarget: KeyRingInfo) {
|
||||
val validatedTargetKeyRing = KeyRingUtils.publicKeys(validatedTarget.keys)
|
||||
val targetFingerprint = Fingerprint(OpenPgpFingerprint.of(validatedTargetKeyRing))
|
||||
val targetPrimaryKey = validatedTargetKeyRing.publicKey!!
|
||||
val target = certSynopsisMap[targetFingerprint]!!
|
||||
|
||||
// Direct-Key Signatures (delegations) by X on Y
|
||||
val delegations = SignatureUtils.getDelegations(validatedTargetKeyRing)
|
||||
for (delegation in delegations) {
|
||||
processDelegation(targetPrimaryKey, target, delegation)
|
||||
}
|
||||
|
||||
// Certification Signatures by X on Y over user-ID U
|
||||
val userIds = targetPrimaryKey.userIDs
|
||||
while (userIds.hasNext()) {
|
||||
val userId = userIds.next()
|
||||
val userIdSigs = SignatureUtils.get3rdPartyCertificationsFor(userId, validatedTargetKeyRing)
|
||||
userIdSigs.forEach {
|
||||
processCertificationOnUserId(targetPrimaryKey, target, userId, it)
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
private fun processDelegation(targetPrimaryKey: PGPPublicKey,
|
||||
target: CertSynopsis,
|
||||
delegation: PGPSignature) {
|
||||
val issuerCandidates = byKeyId[delegation.keyID]
|
||||
?: return
|
||||
for (candidate in issuerCandidates) {
|
||||
val issuerKeyRing = KeyRingUtils.publicKeys(candidate.keys)
|
||||
val issuerFingerprint = Fingerprint(OpenPgpFingerprint.of(issuerKeyRing))
|
||||
val issuerSigningKey = issuerKeyRing.getPublicKey(delegation.keyID)
|
||||
val issuer = certSynopsisMap[issuerFingerprint]
|
||||
?: continue
|
||||
try {
|
||||
val valid = SignatureVerifier.verifyDirectKeySignature(delegation, issuerSigningKey,
|
||||
targetPrimaryKey, policy, referenceTime.timestamp)
|
||||
if (valid) {
|
||||
networkBuilder.addEdge(fromDelegation(issuer, target, delegation))
|
||||
}
|
||||
} catch (e: SignatureValidationException) {
|
||||
val targetFingerprint = OpenPgpFingerprint.of(targetPrimaryKey)
|
||||
LOGGER.warn("Cannot verify signature by $issuerFingerprint on cert of $targetFingerprint", e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun processCertificationOnUserId(targetPrimaryKey: PGPPublicKey,
|
||||
target: CertSynopsis,
|
||||
userId: String,
|
||||
certification: PGPSignature) {
|
||||
val issuerCandidates = byKeyId[certification.keyID]
|
||||
?: return
|
||||
for (candidate in issuerCandidates) {
|
||||
val issuerKeyRing = KeyRingUtils.publicKeys(candidate.keys)
|
||||
val issuerFingerprint = Fingerprint(OpenPgpFingerprint.of(issuerKeyRing))
|
||||
val issuerSigningKey = issuerKeyRing.getPublicKey(certification.keyID)
|
||||
?: continue
|
||||
val issuer = certSynopsisMap[issuerFingerprint]
|
||||
?: continue
|
||||
try {
|
||||
val valid = SignatureVerifier.verifySignatureOverUserId(userId, certification,
|
||||
issuerSigningKey, targetPrimaryKey, policy, referenceTime.timestamp)
|
||||
if (valid) {
|
||||
networkBuilder.addEdge(fromCertification(issuer, target, userId, certification))
|
||||
}
|
||||
} catch (e: SignatureValidationException) {
|
||||
LOGGER.warn("Cannot verify signature for '$userId' by $issuerFingerprint" +
|
||||
" on cert of ${target.fingerprint}", e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun Fingerprint(fingerprint: OpenPgpFingerprint) = Fingerprint(fingerprint.toString())
|
||||
|
||||
private fun RevocationState(revocation: PGPSignature?): RevocationState {
|
||||
if (revocation == null) {
|
||||
return RevocationState.notRevoked()
|
||||
}
|
||||
val revocationReason = SignatureSubpacketsUtil.getRevocationReason(revocation)
|
||||
?: return RevocationState.hardRevoked()
|
||||
return if (RevocationAttributes.Reason.isHardRevocation(revocationReason.revocationReason))
|
||||
RevocationState.hardRevoked()
|
||||
else
|
||||
RevocationState.softRevoked(revocation.creationTime)
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the constructed, initialized [Network].
|
||||
*
|
||||
* @return finished network
|
||||
*/
|
||||
fun buildNetwork(): Network {
|
||||
return networkBuilder.build()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue