487 lines
21 KiB
Kotlin
487 lines
21 KiB
Kotlin
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package org.pgpainless.signature.subpackets
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import openpgp.secondsTill
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import openpgp.toSecondsPrecision
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import org.bouncycastle.bcpg.SignatureSubpacket
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import org.bouncycastle.bcpg.SignatureSubpacketTags
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import org.bouncycastle.bcpg.sig.*
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import org.bouncycastle.openpgp.PGPPublicKey
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import org.bouncycastle.openpgp.PGPSignature
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import org.bouncycastle.openpgp.PGPSignatureSubpacketVector
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import org.pgpainless.algorithm.*
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import org.pgpainless.key.util.RevocationAttributes
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import java.lang.IllegalArgumentException
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import java.net.URL
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import java.util.*
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import kotlin.experimental.or
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class SignatureSubpackets
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: BaseSignatureSubpackets, SelfSignatureSubpackets, CertificationSubpackets, RevocationSignatureSubpackets {
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interface Callback : SignatureSubpacketCallback<SignatureSubpackets>
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var signatureCreationTimeSubpacket: SignatureCreationTime? = null
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var signatureExpirationTimeSubpacket: SignatureExpirationTime? = null
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var issuerKeyIdSubpacket: IssuerKeyID? = null
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var issuerFingerprintSubpacket: IssuerFingerprint? = null
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val notationDataSubpackets: List<NotationData> = mutableListOf()
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val intendedRecipientFingerprintSubpackets: List<IntendedRecipientFingerprint> = mutableListOf()
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val revocationKeySubpackets: List<RevocationKey> = mutableListOf()
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var exportableSubpacket: Exportable? = null
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var signatureTargetSubpacket: SignatureTarget? = null
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var featuresSubpacket: Features? = null
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var keyFlagsSubpacket: KeyFlags? = null
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var trustSubpacket: TrustSignature? = null
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var preferredCompressionAlgorithmsSubpacket: PreferredAlgorithms? = null
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var preferredSymmetricKeyAlgorithmsSubpacket: PreferredAlgorithms? = null
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var preferredHashAlgorithmsSubpacket: PreferredAlgorithms? = null
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val embeddedSignatureSubpackets: List<EmbeddedSignature> = mutableListOf()
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var signerUserIdSubpacket: SignerUserID? = null
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var keyExpirationTimeSubpacket: KeyExpirationTime? = null
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var policyURISubpacket: PolicyURI? = null
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var primaryUserIdSubpacket: PrimaryUserID? = null
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var regularExpressionSubpacket: RegularExpression? = null
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var revocableSubpacket: Revocable? = null
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var revocationReasonSubpacket: RevocationReason? = null
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val residualSubpackets: List<SignatureSubpacket> = mutableListOf()
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companion object {
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@JvmStatic
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fun refreshHashedSubpackets(issuer: PGPPublicKey, oldSignature: PGPSignature): SignatureSubpackets {
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return createHashedSubpacketsFrom(issuer, oldSignature.hashedSubPackets)
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}
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@JvmStatic
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fun refreshUnhashedSubpackets(oldSignature: PGPSignature): SignatureSubpackets {
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return createSubpacketsFrom(oldSignature.unhashedSubPackets)
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}
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@JvmStatic
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fun createHashedSubpacketsFrom(issuer: PGPPublicKey, base: PGPSignatureSubpacketVector): SignatureSubpackets {
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return createSubpacketsFrom(base).apply {
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setIssuerFingerprintAndKeyId(issuer)
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}
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}
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@JvmStatic
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fun createSubpacketsFrom(base: PGPSignatureSubpacketVector): SignatureSubpackets {
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return SignatureSubpacketsHelper.applyFrom(base, SignatureSubpackets())
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}
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@JvmStatic
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fun createHashedSubpackets(issuer: PGPPublicKey): SignatureSubpackets {
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return createEmptySubpackets().setIssuerFingerprintAndKeyId(issuer)
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}
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@JvmStatic
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fun createEmptySubpackets(): SignatureSubpackets {
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return SignatureSubpackets()
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}
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}
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override fun setRevocationReason(revocationAttributes: RevocationAttributes): SignatureSubpackets = apply {
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setRevocationReason(false, revocationAttributes)
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}
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override fun setRevocationReason(isCritical: Boolean, revocationAttributes: RevocationAttributes): SignatureSubpackets = apply {
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setRevocationReason(isCritical, revocationAttributes.reason, revocationAttributes.description)
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}
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override fun setRevocationReason(isCritical: Boolean, reason: RevocationAttributes.Reason, description: CharSequence): SignatureSubpackets = apply {
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setRevocationReason(RevocationReason(isCritical, reason.code, description.toString()))
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}
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override fun setRevocationReason(reason: RevocationReason?): SignatureSubpackets = apply {
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this.revocationReasonSubpacket = reason
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}
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override fun setKeyFlags(vararg keyflags: KeyFlag): SignatureSubpackets = apply {
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setKeyFlags(true, *keyflags)
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}
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override fun setKeyFlags(keyFlags: List<KeyFlag>): SignatureSubpackets = apply {
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setKeyFlags(true, *keyFlags.toTypedArray())
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}
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override fun setKeyFlags(isCritical: Boolean, vararg keyFlags: KeyFlag): SignatureSubpackets = apply {
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setKeyFlags(KeyFlags(isCritical, KeyFlag.toBitmask(*keyFlags)))
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}
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override fun setKeyFlags(keyFlags: KeyFlags?): SignatureSubpackets = apply {
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this.keyFlagsSubpacket = keyFlags
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}
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override fun setPrimaryUserId(): SignatureSubpackets = apply {
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setPrimaryUserId(true)
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}
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override fun setPrimaryUserId(isCritical: Boolean): SignatureSubpackets = apply {
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setPrimaryUserId(PrimaryUserID(isCritical, true))
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}
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override fun setPrimaryUserId(primaryUserID: PrimaryUserID?): SignatureSubpackets = apply {
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this.primaryUserIdSubpacket = primaryUserID
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}
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override fun setKeyExpirationTime(key: PGPPublicKey, keyExpirationTime: Date?): SignatureSubpackets = apply {
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setKeyExpirationTime(key.creationTime, keyExpirationTime)
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}
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override fun setKeyExpirationTime(keyCreationTime: Date, keyExpirationTime: Date?): SignatureSubpackets = apply {
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setKeyExpirationTime(true, keyCreationTime, keyExpirationTime)
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}
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override fun setKeyExpirationTime(isCritical: Boolean, keyCreationTime: Date, keyExpirationTime: Date?): SignatureSubpackets = apply {
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if (keyExpirationTime == null) {
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setKeyExpirationTime(isCritical, 0)
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} else {
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setKeyExpirationTime(isCritical, keyCreationTime.secondsTill(keyExpirationTime))
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}
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}
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override fun setKeyExpirationTime(isCritical: Boolean, secondsFromCreationToExpiration: Long): SignatureSubpackets = apply {
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enforceExpirationBounds(secondsFromCreationToExpiration)
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setKeyExpirationTime(KeyExpirationTime(isCritical, secondsFromCreationToExpiration))
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}
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override fun setKeyExpirationTime(keyExpirationTime: KeyExpirationTime?): SignatureSubpackets = apply {
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this.keyExpirationTimeSubpacket = keyExpirationTime
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}
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override fun setPreferredCompressionAlgorithms(vararg algorithms: CompressionAlgorithm): SignatureSubpackets = apply {
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setPreferredCompressionAlgorithms(setOf(*algorithms))
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}
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override fun setPreferredCompressionAlgorithms(algorithms: Collection<CompressionAlgorithm>): SignatureSubpackets = apply {
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setPreferredCompressionAlgorithms(false, algorithms)
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}
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override fun setPreferredCompressionAlgorithms(isCritical: Boolean, algorithms: Collection<CompressionAlgorithm>): SignatureSubpackets = apply {
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setPreferredCompressionAlgorithms(PreferredAlgorithms(
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SignatureSubpacketTags.PREFERRED_COMP_ALGS,
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isCritical,
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algorithms.map { it.algorithmId }.toIntArray()))
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}
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override fun setPreferredCompressionAlgorithms(algorithms: PreferredAlgorithms?): SignatureSubpackets = apply {
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require(algorithms == null || algorithms.type == SignatureSubpacketTags.PREFERRED_COMP_ALGS) {
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"Invalid preferred compression algorithms type."
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}
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this.preferredCompressionAlgorithmsSubpacket = algorithms
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}
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override fun setPreferredSymmetricKeyAlgorithms(vararg algorithms: SymmetricKeyAlgorithm): SignatureSubpackets = apply {
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setPreferredSymmetricKeyAlgorithms(setOf(*algorithms))
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}
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override fun setPreferredSymmetricKeyAlgorithms(algorithms: Collection<SymmetricKeyAlgorithm>): SignatureSubpackets = apply {
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setPreferredSymmetricKeyAlgorithms(false, algorithms)
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}
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override fun setPreferredSymmetricKeyAlgorithms(isCritical: Boolean, algorithms: Collection<SymmetricKeyAlgorithm>): SignatureSubpackets = apply {
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setPreferredSymmetricKeyAlgorithms(PreferredAlgorithms(
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SignatureSubpacketTags.PREFERRED_SYM_ALGS,
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isCritical,
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algorithms.map { it.algorithmId }.toIntArray()
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))
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}
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override fun setPreferredSymmetricKeyAlgorithms(algorithms: PreferredAlgorithms?): SignatureSubpackets = apply {
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require(algorithms == null || algorithms.type == SignatureSubpacketTags.PREFERRED_SYM_ALGS) {
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"Invalid preferred symmetric algorithms type."
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}
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this.preferredSymmetricKeyAlgorithmsSubpacket = algorithms
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}
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override fun setPreferredHashAlgorithms(vararg algorithms: HashAlgorithm): SignatureSubpackets = apply {
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setPreferredHashAlgorithms(setOf(*algorithms))
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}
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override fun setPreferredHashAlgorithms(algorithms: Collection<HashAlgorithm>): SignatureSubpackets = apply {
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setPreferredHashAlgorithms(false, algorithms)
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}
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override fun setPreferredHashAlgorithms(isCritical: Boolean, algorithms: Collection<HashAlgorithm>): SignatureSubpackets = apply {
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setPreferredHashAlgorithms(PreferredAlgorithms(
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SignatureSubpacketTags.PREFERRED_HASH_ALGS,
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isCritical,
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algorithms.map { it.algorithmId }.toIntArray()
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))
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}
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override fun setPreferredHashAlgorithms(algorithms: PreferredAlgorithms?): SignatureSubpackets = apply {
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require(algorithms == null || algorithms.type == SignatureSubpacketTags.PREFERRED_HASH_ALGS) {
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"Invalid preferred hash algorithms type."
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}
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this.preferredHashAlgorithmsSubpacket = algorithms
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}
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override fun addRevocationKey(revocationKey: PGPPublicKey): SignatureSubpackets = apply {
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addRevocationKey(true, revocationKey)
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}
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override fun addRevocationKey(isCritical: Boolean, revocationKey: PGPPublicKey): SignatureSubpackets = apply {
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addRevocationKey(isCritical, false, revocationKey)
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}
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override fun addRevocationKey(isCritical: Boolean, isSensitive: Boolean, revocationKey: PGPPublicKey): SignatureSubpackets = apply {
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val clazz = 0x80.toByte() or if (isSensitive) 0x40.toByte() else 0x00.toByte()
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addRevocationKey(RevocationKey(isCritical, clazz, revocationKey.algorithm, revocationKey.fingerprint))
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}
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override fun addRevocationKey(revocationKey: RevocationKey): SignatureSubpackets = apply {
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(this.revocationKeySubpackets as MutableList).add(revocationKey)
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}
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override fun clearRevocationKeys(): SignatureSubpackets = apply {
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(this.revocationKeySubpackets as MutableList).clear()
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}
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override fun setFeatures(vararg features: Feature): SignatureSubpackets = apply {
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setFeatures(true, *features)
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}
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override fun setFeatures(isCritical: Boolean, vararg features: Feature): SignatureSubpackets = apply {
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setFeatures(Features(isCritical, Feature.toBitmask(*features)))
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}
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override fun setFeatures(features: Features?): SignatureSubpackets = apply {
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this.featuresSubpacket = features
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}
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override fun setIssuerFingerprintAndKeyId(key: PGPPublicKey): SignatureSubpackets = apply {
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setIssuerKeyId(key.keyID)
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setIssuerFingerprint(key)
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}
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override fun setIssuerKeyId(keyId: Long): SignatureSubpackets = apply {
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setIssuerKeyId(false, keyId)
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}
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override fun setIssuerKeyId(isCritical: Boolean, keyId: Long): SignatureSubpackets = apply {
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setIssuerKeyId(IssuerKeyID(isCritical, keyId))
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}
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override fun setIssuerKeyId(issuerKeyID: IssuerKeyID?): SignatureSubpackets = apply {
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this.issuerKeyIdSubpacket = issuerKeyID
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}
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override fun setIssuerFingerprint(isCritical: Boolean, issuer: PGPPublicKey): SignatureSubpackets = apply {
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setIssuerFingerprint(IssuerFingerprint(isCritical, issuer.version, issuer.fingerprint))
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}
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override fun setIssuerFingerprint(issuer: PGPPublicKey): SignatureSubpackets = apply {
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setIssuerFingerprint(false, issuer)
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}
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override fun setIssuerFingerprint(fingerprint: IssuerFingerprint?): SignatureSubpackets = apply {
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this.issuerFingerprintSubpacket = fingerprint
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}
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override fun setSignatureCreationTime(creationTime: Date): SignatureSubpackets = apply {
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setSignatureCreationTime(true, creationTime)
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}
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override fun setSignatureCreationTime(isCritical: Boolean, creationTime: Date): SignatureSubpackets = apply {
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setSignatureCreationTime(SignatureCreationTime(isCritical, creationTime))
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}
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override fun setSignatureCreationTime(creationTime: SignatureCreationTime?): SignatureSubpackets = apply {
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this.signatureCreationTimeSubpacket = creationTime
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}
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override fun setSignatureExpirationTime(creationTime: Date, expirationTime: Date?): SignatureSubpackets = apply {
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setSignatureExpirationTime(true, creationTime, expirationTime)
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}
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override fun setSignatureExpirationTime(isCritical: Boolean, creationTime: Date, expirationTime: Date?): SignatureSubpackets = apply {
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if (expirationTime != null) {
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require(creationTime.toSecondsPrecision() < expirationTime.toSecondsPrecision()) {
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"Expiration time MUST NOT be less or equal the creation time."
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}
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setSignatureExpirationTime(SignatureExpirationTime(isCritical, creationTime.secondsTill(expirationTime)))
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} else {
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setSignatureExpirationTime(SignatureExpirationTime(isCritical, 0))
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}
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}
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override fun setSignatureExpirationTime(isCritical: Boolean, seconds: Long): SignatureSubpackets = apply {
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enforceExpirationBounds(seconds)
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setSignatureExpirationTime(SignatureExpirationTime(isCritical, seconds))
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}
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/**
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* Enforce that <pre>seconds</pre> is within bounds of an unsigned 32bit number.
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* Values less than 0 are illegal, as well as values greater 0xffffffff.
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*
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* @param seconds number to check
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* @throws IllegalArgumentException in case of an under- or overflow
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*/
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private fun enforceExpirationBounds(seconds: Long) {
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require(seconds <= 0xffffffffL) {
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"Integer overflow. Seconds from creation to expiration (${seconds}) cannot be larger than ${0xffffffffL}."
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}
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require(seconds >= 0) {
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"Seconds from creation to expiration cannot be less than 0."
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}
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}
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override fun setSignatureExpirationTime(expirationTime: SignatureExpirationTime?): SignatureSubpackets = apply {
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this.signatureExpirationTimeSubpacket = expirationTime
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}
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override fun setSignerUserId(userId: CharSequence): SignatureSubpackets = apply {
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setSignerUserId(false, userId)
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}
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override fun setSignerUserId(isCritical: Boolean, userId: CharSequence): SignatureSubpackets = apply {
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setSignerUserId(SignerUserID(isCritical, userId.toString()))
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}
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override fun setSignerUserId(signerUserID: SignerUserID?): SignatureSubpackets = apply {
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this.signerUserIdSubpacket = signerUserID
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}
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override fun addNotationData(isCritical: Boolean, notationName: String, notationValue: String): SignatureSubpackets = apply {
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addNotationData(isCritical, true, notationName, notationValue)
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}
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override fun addNotationData(isCritical: Boolean, isHumanReadable: Boolean, notationName: String, notationValue: String): SignatureSubpackets = apply {
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addNotationData(NotationData(isCritical, isHumanReadable, notationName, notationValue))
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}
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override fun addNotationData(notationData: NotationData): SignatureSubpackets = apply {
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(this.notationDataSubpackets as MutableList).add(notationData)
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}
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override fun clearNotationData(): SignatureSubpackets = apply {
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(this.notationDataSubpackets as MutableList).clear()
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}
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override fun addIntendedRecipientFingerprint(recipientKey: PGPPublicKey): SignatureSubpackets = apply {
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addIntendedRecipientFingerprint(false, recipientKey)
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}
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override fun addIntendedRecipientFingerprint(isCritical: Boolean, recipientKey: PGPPublicKey): SignatureSubpackets = apply {
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addIntendedRecipientFingerprint(IntendedRecipientFingerprint(isCritical, recipientKey.version, recipientKey.fingerprint))
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}
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override fun addIntendedRecipientFingerprint(intendedRecipient: IntendedRecipientFingerprint): SignatureSubpackets = apply {
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(this.intendedRecipientFingerprintSubpackets as MutableList).add(intendedRecipient)
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}
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override fun clearIntendedRecipientFingerprints(): SignatureSubpackets = apply {
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(this.intendedRecipientFingerprintSubpackets as MutableList).clear()
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}
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override fun setExportable(): SignatureSubpackets = apply {
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setExportable(true)
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}
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override fun setExportable(isExportable: Boolean): SignatureSubpackets = apply {
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setExportable(true, isExportable)
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}
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override fun setExportable(isCritical: Boolean, isExportable: Boolean): SignatureSubpackets = apply {
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setExportable(Exportable(isCritical, isExportable))
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}
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override fun setExportable(exportable: Exportable?): SignatureSubpackets = apply {
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this.exportableSubpacket = exportable
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}
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override fun setPolicyUrl(policyUrl: URL): SignatureSubpackets = apply {
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setPolicyUrl(false, policyUrl)
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}
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override fun setPolicyUrl(isCritical: Boolean, policyUrl: URL): SignatureSubpackets = apply {
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setPolicyUrl(PolicyURI(isCritical, policyUrl.toString()))
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}
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override fun setPolicyUrl(policyUrl: PolicyURI?): SignatureSubpackets = apply {
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this.policyURISubpacket = policyURISubpacket
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}
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override fun setRegularExpression(regex: CharSequence): SignatureSubpackets = apply {
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setRegularExpression(false, regex)
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}
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override fun setRegularExpression(isCritical: Boolean, regex: CharSequence): SignatureSubpackets = apply {
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setRegularExpression(RegularExpression(isCritical, regex.toString()))
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}
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override fun setRegularExpression(regex: RegularExpression?): SignatureSubpackets = apply {
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this.regularExpressionSubpacket = regex
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}
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override fun setRevocable(): SignatureSubpackets = apply {
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setRevocable(true)
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}
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override fun setRevocable(isRevocable: Boolean): SignatureSubpackets = apply {
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setRevocable(true, isRevocable)
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}
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override fun setRevocable(isCritical: Boolean, isRevocable: Boolean): SignatureSubpackets = apply {
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setRevocable(Revocable(isCritical, isRevocable))
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}
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override fun setRevocable(revocable: Revocable?): SignatureSubpackets = apply {
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this.revocableSubpacket = revocable
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}
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override fun setSignatureTarget(keyAlgorithm: PublicKeyAlgorithm, hashAlgorithm: HashAlgorithm, hashData: ByteArray): SignatureSubpackets = apply {
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setSignatureTarget(true, keyAlgorithm, hashAlgorithm, hashData)
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}
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override fun setSignatureTarget(isCritical: Boolean, keyAlgorithm: PublicKeyAlgorithm, hashAlgorithm: HashAlgorithm, hashData: ByteArray): SignatureSubpackets = apply {
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setSignatureTarget(SignatureTarget(isCritical, keyAlgorithm.algorithmId, hashAlgorithm.algorithmId, hashData))
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}
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override fun setSignatureTarget(signatureTarget: SignatureTarget?): SignatureSubpackets = apply {
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this.signatureTargetSubpacket = signatureTarget
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}
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override fun setTrust(depth: Int, amount: Int): SignatureSubpackets = apply {
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setTrust(true, depth, amount)
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}
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override fun setTrust(isCritical: Boolean, depth: Int, amount: Int): SignatureSubpackets = apply {
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setTrust(TrustSignature(isCritical, depth, amount))
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}
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override fun setTrust(trust: TrustSignature?): SignatureSubpackets = apply {
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this.trustSubpacket = trust
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}
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override fun addEmbeddedSignature(signature: PGPSignature): SignatureSubpackets = apply {
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addEmbeddedSignature(true, signature)
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}
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override fun addEmbeddedSignature(isCritical: Boolean, signature: PGPSignature): SignatureSubpackets = apply {
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val sig = signature.encoded
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val data = if (sig.size - 1 > 256) {
|
|
ByteArray(sig.size - 3)
|
|
} else {
|
|
ByteArray(sig.size - 2)
|
|
}
|
|
System.arraycopy(sig, sig.size - data.size, data, 0, data.size)
|
|
addEmbeddedSignature(EmbeddedSignature(isCritical, false, data))
|
|
}
|
|
|
|
override fun addEmbeddedSignature(embeddedSignature: EmbeddedSignature): SignatureSubpackets = apply {
|
|
(this.embeddedSignatureSubpackets as MutableList).add(embeddedSignature)
|
|
}
|
|
|
|
override fun clearEmbeddedSignatures(): SignatureSubpackets = apply {
|
|
(this.embeddedSignatureSubpackets as MutableList).clear()
|
|
}
|
|
|
|
fun addResidualSubpacket(subpacket: org.bouncycastle.bcpg.SignatureSubpacket): SignatureSubpackets = apply {
|
|
(residualSubpackets as MutableList).add(subpacket)
|
|
}
|
|
} |