mirror of
https://github.com/pgpainless/pgpainless.git
synced 2024-06-26 05:24:49 +02:00
110 lines
4 KiB
Kotlin
110 lines
4 KiB
Kotlin
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package org.bouncycastle.extensions
|
|
|
|
import org.bouncycastle.asn1.gnu.GNUObjectIdentifiers
|
|
import org.bouncycastle.bcpg.ECDHPublicBCPGKey
|
|
import org.bouncycastle.bcpg.ECDSAPublicBCPGKey
|
|
import org.bouncycastle.bcpg.EdDSAPublicBCPGKey
|
|
import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil
|
|
import org.bouncycastle.openpgp.PGPPublicKey
|
|
import org.bouncycastle.openpgp.PGPSignature
|
|
import org.pgpainless.PGPainless
|
|
import org.pgpainless.algorithm.KeyFlag
|
|
import org.pgpainless.algorithm.PublicKeyAlgorithm
|
|
import org.pgpainless.algorithm.SignatureType
|
|
import org.pgpainless.decryption_verification.SignatureVerification
|
|
import org.pgpainless.exception.SignatureValidationException
|
|
import org.pgpainless.key.OpenPgpFingerprint
|
|
import org.pgpainless.key.generation.type.eddsa.EdDSACurve
|
|
import org.pgpainless.signature.consumer.SignatureVerifier
|
|
import java.util.*
|
|
import kotlin.reflect.KProperty
|
|
|
|
/**
|
|
* For secret keys of types [PublicKeyAlgorithm.ECDSA], [PublicKeyAlgorithm.ECDH] and [PublicKeyAlgorithm.EDDSA],
|
|
* this method returns the name of the underlying elliptic curve.
|
|
*
|
|
* For other key types or unknown curves, this method throws an [IllegalArgumentException].
|
|
*
|
|
* @return curve name
|
|
*/
|
|
fun PGPPublicKey.getCurveName(): String {
|
|
PublicKeyAlgorithm.requireFromId(algorithm)
|
|
.let {
|
|
when (it) {
|
|
PublicKeyAlgorithm.ECDSA -> publicKeyPacket.key as ECDSAPublicBCPGKey
|
|
PublicKeyAlgorithm.ECDH -> publicKeyPacket.key as ECDHPublicBCPGKey
|
|
PublicKeyAlgorithm.EDDSA -> publicKeyPacket.key as EdDSAPublicBCPGKey
|
|
else -> throw IllegalArgumentException("No an elliptic curve public key ($it).")
|
|
}
|
|
}
|
|
.let { if (it.curveOID == GNUObjectIdentifiers.Ed25519) return EdDSACurve._Ed25519.curveName else it.curveOID}
|
|
.let { it to ECUtil.getCurveName(it) }
|
|
.let { if (it.second != null) return it.second else throw IllegalArgumentException("Unknown curve: ${it.first}") }
|
|
}
|
|
|
|
/**
|
|
* Return the [PublicKeyAlgorithm] of this key.
|
|
*/
|
|
val PGPPublicKey.publicKeyAlgorithm: PublicKeyAlgorithm
|
|
get() = PublicKeyAlgorithm.requireFromId(algorithm)
|
|
|
|
/**
|
|
* Return the [OpenPgpFingerprint] of this key.
|
|
*/
|
|
val PGPPublicKey.openPgpFingerprint: OpenPgpFingerprint by Lazy { OpenPgpFingerprint.of(it) }
|
|
|
|
val PGPPublicKey.goodDirectKeySignatures: List<PGPSignature> by Lazy { key ->
|
|
key.getSignaturesOfType(SignatureType.DIRECT_KEY.code)
|
|
.asSequence()
|
|
.filter { it.keyID == key.keyID }
|
|
.filter {
|
|
runCatching {
|
|
SignatureVerifier.verifyDirectKeySignature(it, key, PGPainless.getPolicy(), Date())
|
|
}.getOrElse { false }
|
|
}
|
|
.toList()
|
|
}
|
|
|
|
val PGPPublicKey.goodDirectKeySignature: PGPSignature? by Lazy {
|
|
it.goodDirectKeySignatures
|
|
.sortedBy { sig -> sig.creationTime }
|
|
.lastOrNull()
|
|
}
|
|
|
|
val PGPPublicKey.goodKeyRevocations: List<PGPSignature> by Lazy { key ->
|
|
key.getSignaturesOfType(SignatureType.KEY_REVOCATION.code)
|
|
.asSequence()
|
|
.filter { it.keyID == key.keyID }
|
|
.filter {
|
|
runCatching {
|
|
SignatureVerifier.verifyKeyRevocationSignature(it, key, PGPainless.getPolicy(), Date())
|
|
}.getOrElse { false }
|
|
}
|
|
.toList()
|
|
}
|
|
|
|
val PGPPublicKey.goodKeyRevocation: PGPSignature? by Lazy {
|
|
it.goodKeyRevocations
|
|
.sortedBy { sig -> sig.creationTime }
|
|
.lastOrNull()
|
|
}
|
|
|
|
internal class Lazy<T>(val function: (PGPPublicKey) -> T) {
|
|
private var value: Result<T>? = null
|
|
|
|
operator fun getValue(pgpPublicKey: PGPPublicKey, property: KProperty<*>): T {
|
|
if (value == null) {
|
|
value = try {
|
|
Result.success(function(pgpPublicKey))
|
|
} catch (e : Throwable) {
|
|
Result.failure(e)
|
|
}
|
|
}
|
|
return value!!.getOrThrow()
|
|
}
|
|
}
|