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Kotlin conversion: KeyRingReader

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This commit is contained in:
Paul Schaub 2023-09-01 14:29:48 +02:00
parent cd1a3e436c
commit 250be19eda
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
3 changed files with 333 additions and 423 deletions
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415
pgpainless-core/src/main/java/org/pgpainless/key/parsing/KeyRingReader.java
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// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.key.parsing;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPKeyRing;
import org.bouncycastle.openpgp.PGPMarker;
import org.bouncycastle.openpgp.PGPObjectFactory;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.openpgp.PGPSecretKeyRingCollection;
import org.bouncycastle.util.io.Streams;
import org.pgpainless.PGPainless;
import org.pgpainless.implementation.ImplementationFactory;
import org.pgpainless.key.collection.PGPKeyRingCollection;
import org.pgpainless.util.ArmorUtils;
public class KeyRingReader {
public static final int MAX_ITERATIONS = 10000;
@SuppressWarnings("CharsetObjectCanBeUsed")
public static final Charset UTF8 = Charset.forName("UTF-8");
/**
* Read a {@link PGPKeyRing} (either {@link PGPSecretKeyRing} or {@link PGPPublicKeyRing}) from the given
* {@link InputStream}.
*
* @param inputStream inputStream containing the OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Nullable
public PGPKeyRing keyRing(@Nonnull InputStream inputStream)
throws IOException {
return readKeyRing(inputStream);
}
/**
* Read a {@link PGPKeyRing} (either {@link PGPSecretKeyRing} or {@link PGPPublicKeyRing}) from the given
* byte array.
*
* @param bytes byte array containing the OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Nullable
public PGPKeyRing keyRing(@Nonnull byte[] bytes)
throws IOException {
return keyRing(new ByteArrayInputStream(bytes));
}
/**
* Read a {@link PGPKeyRing} (either {@link PGPSecretKeyRing} or {@link PGPPublicKeyRing}) from the given
* ASCII armored string.
*
* @param asciiArmored ASCII armored OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Nullable
public PGPKeyRing keyRing(@Nonnull String asciiArmored)
throws IOException {
return keyRing(asciiArmored.getBytes(UTF8));
}
@Nullable
public PGPPublicKeyRing publicKeyRing(@Nonnull InputStream inputStream)
throws IOException {
return readPublicKeyRing(inputStream);
}
@Nullable
public PGPPublicKeyRing publicKeyRing(@Nonnull byte[] bytes)
throws IOException {
return publicKeyRing(new ByteArrayInputStream(bytes));
}
@Nullable
public PGPPublicKeyRing publicKeyRing(@Nonnull String asciiArmored)
throws IOException {
return publicKeyRing(asciiArmored.getBytes(UTF8));
}
@Nonnull
public PGPPublicKeyRingCollection publicKeyRingCollection(@Nonnull InputStream inputStream)
throws IOException {
return readPublicKeyRingCollection(inputStream);
}
@Nonnull
public PGPPublicKeyRingCollection publicKeyRingCollection(@Nonnull byte[] bytes)
throws IOException {
return publicKeyRingCollection(new ByteArrayInputStream(bytes));
}
@Nonnull
public PGPPublicKeyRingCollection publicKeyRingCollection(@Nonnull String asciiArmored)
throws IOException {
return publicKeyRingCollection(asciiArmored.getBytes(UTF8));
}
@Nullable
public PGPSecretKeyRing secretKeyRing(@Nonnull InputStream inputStream)
throws IOException {
return readSecretKeyRing(inputStream);
}
@Nullable
public PGPSecretKeyRing secretKeyRing(@Nonnull byte[] bytes)
throws IOException {
return secretKeyRing(new ByteArrayInputStream(bytes));
}
@Nullable
public PGPSecretKeyRing secretKeyRing(@Nonnull String asciiArmored)
throws IOException {
return secretKeyRing(asciiArmored.getBytes(UTF8));
}
@Nonnull
public PGPSecretKeyRingCollection secretKeyRingCollection(@Nonnull InputStream inputStream)
throws IOException {
return readSecretKeyRingCollection(inputStream);
}
@Nonnull
public PGPSecretKeyRingCollection secretKeyRingCollection(@Nonnull byte[] bytes)
throws IOException {
return secretKeyRingCollection(new ByteArrayInputStream(bytes));
}
@Nonnull
public PGPSecretKeyRingCollection secretKeyRingCollection(@Nonnull String asciiArmored)
throws IOException {
return secretKeyRingCollection(asciiArmored.getBytes(UTF8));
}
@Nonnull
public PGPKeyRingCollection keyRingCollection(@Nonnull InputStream inputStream, boolean isSilent)
throws IOException, PGPException {
return readKeyRingCollection(inputStream, isSilent);
}
@Nonnull
public PGPKeyRingCollection keyRingCollection(@Nonnull byte[] bytes, boolean isSilent)
throws IOException, PGPException {
return keyRingCollection(new ByteArrayInputStream(bytes), isSilent);
}
@Nonnull
public PGPKeyRingCollection keyRingCollection(@Nonnull String asciiArmored, boolean isSilent)
throws IOException, PGPException {
return keyRingCollection(asciiArmored.getBytes(UTF8), isSilent);
}
/**
* Read a {@link PGPKeyRing} (either {@link PGPSecretKeyRing} or {@link PGPPublicKeyRing}) from the given
* {@link InputStream}.
* This method will attempt to read at most {@link #MAX_ITERATIONS} objects from the stream before aborting.
* The first {@link PGPPublicKeyRing} or {@link PGPSecretKeyRing} will be returned.
*
* @param inputStream inputStream containing the OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Nullable
public static PGPKeyRing readKeyRing(@Nonnull InputStream inputStream)
throws IOException {
return readKeyRing(inputStream, MAX_ITERATIONS);
}
/**
* Read a {@link PGPKeyRing} (either {@link PGPSecretKeyRing} or {@link PGPPublicKeyRing}) from the given
* {@link InputStream}.
* This method will attempt to read at most <pre>maxIterations</pre> objects from the stream before aborting.
* The first {@link PGPPublicKeyRing} or {@link PGPSecretKeyRing} will be returned.
*
* @param inputStream inputStream containing the OpenPGP key or certificate
* @param maxIterations maximum number of objects that are read before the method will abort
* @return key ring
* @throws IOException in case of an IO error
*/
@Nullable
public static PGPKeyRing readKeyRing(@Nonnull InputStream inputStream, int maxIterations)
throws IOException {
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream));
int i = 0;
Object next;
do {
next = objectFactory.nextObject();
if (next == null) {
return null;
}
if (next instanceof PGPMarker) {
continue;
}
if (next instanceof PGPSecretKeyRing) {
return (PGPSecretKeyRing) next;
}
if (next instanceof PGPPublicKeyRing) {
return (PGPPublicKeyRing) next;
}
} while (++i < maxIterations);
throw new IOException("Loop exceeded max iteration count.");
}
@Nullable
public static PGPPublicKeyRing readPublicKeyRing(@Nonnull InputStream inputStream)
throws IOException {
return readPublicKeyRing(inputStream, MAX_ITERATIONS);
}
/**
* Read a public key ring from the provided {@link InputStream}.
* If more than maxIterations PGP packets are encountered before a {@link PGPPublicKeyRing} is read,
* an {@link IOException} is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@Nullable
public static PGPPublicKeyRing readPublicKeyRing(@Nonnull InputStream inputStream, int maxIterations)
throws IOException {
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream));
int i = 0;
Object next;
do {
next = objectFactory.nextObject();
if (next == null) {
return null;
}
if (next instanceof PGPMarker) {
continue;
}
if (next instanceof PGPPublicKeyRing) {
return (PGPPublicKeyRing) next;
}
} while (++i < maxIterations);
throw new IOException("Loop exceeded max iteration count.");
}
@Nonnull
public static PGPPublicKeyRingCollection readPublicKeyRingCollection(@Nonnull InputStream inputStream)
throws IOException {
return readPublicKeyRingCollection(inputStream, MAX_ITERATIONS);
}
/**
* Read a public key ring collection from the provided {@link InputStream}.
* If more than maxIterations PGP packets are encountered before the stream is exhausted,
* an {@link IOException} is thrown.
* If the stream contain secret key packets, their public key parts are extracted and returned.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring collection
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@Nonnull
public static PGPPublicKeyRingCollection readPublicKeyRingCollection(@Nonnull InputStream inputStream, int maxIterations)
throws IOException {
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream));
List<PGPPublicKeyRing> rings = new ArrayList<>();
int i = 0;
Object next;
do {
next = objectFactory.nextObject();
if (next == null) {
return new PGPPublicKeyRingCollection(rings);
}
if (next instanceof PGPMarker) {
continue;
}
if (next instanceof PGPPublicKeyRing) {
rings.add((PGPPublicKeyRing) next);
continue;
}
// Parse public keys from secret keys
if (next instanceof PGPSecretKeyRing) {
rings.add(PGPainless.extractCertificate((PGPSecretKeyRing) next));
continue;
}
if (next instanceof PGPPublicKeyRingCollection) {
PGPPublicKeyRingCollection collection = (PGPPublicKeyRingCollection) next;
Iterator<PGPPublicKeyRing> iterator = collection.getKeyRings();
while (iterator.hasNext()) {
rings.add(iterator.next());
}
}
} while (++i < maxIterations);
throw new IOException("Loop exceeded max iteration count.");
}
@Nullable
public static PGPSecretKeyRing readSecretKeyRing(@Nonnull InputStream inputStream)
throws IOException {
return readSecretKeyRing(inputStream, MAX_ITERATIONS);
}
/**
* Read a secret key ring from the provided {@link InputStream}.
* If more than maxIterations PGP packets are encountered before a {@link PGPSecretKeyRing} is read,
* an {@link IOException} is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@Nullable
public static PGPSecretKeyRing readSecretKeyRing(@Nonnull InputStream inputStream, int maxIterations)
throws IOException {
InputStream decoderStream = ArmorUtils.getDecoderStream(inputStream);
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(decoderStream);
int i = 0;
Object next;
do {
next = objectFactory.nextObject();
if (next == null) {
return null;
}
if (next instanceof PGPMarker) {
continue;
}
if (next instanceof PGPSecretKeyRing) {
Streams.drain(decoderStream);
return (PGPSecretKeyRing) next;
}
} while (++i < maxIterations);
throw new IOException("Loop exceeded max iteration count.");
}
@Nonnull
public static PGPSecretKeyRingCollection readSecretKeyRingCollection(@Nonnull InputStream inputStream)
throws IOException {
return readSecretKeyRingCollection(inputStream, MAX_ITERATIONS);
}
/**
* Read a secret key ring collection from the provided {@link InputStream}.
* If more than maxIterations PGP packets are encountered before the stream is exhausted,
* an {@link IOException} is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return secret key ring collection
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@Nonnull
public static PGPSecretKeyRingCollection readSecretKeyRingCollection(@Nonnull InputStream inputStream,
int maxIterations)
throws IOException {
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream));
List<PGPSecretKeyRing> rings = new ArrayList<>();
int i = 0;
Object next;
do {
next = objectFactory.nextObject();
if (next == null) {
return new PGPSecretKeyRingCollection(rings);
}
if (next instanceof PGPMarker) {
continue;
}
if (next instanceof PGPSecretKeyRing) {
rings.add((PGPSecretKeyRing) next);
}
if (next instanceof PGPSecretKeyRingCollection) {
PGPSecretKeyRingCollection collection = (PGPSecretKeyRingCollection) next;
Iterator<PGPSecretKeyRing> iterator = collection.getKeyRings();
while (iterator.hasNext()) {
rings.add(iterator.next());
}
}
} while (++i < maxIterations);
throw new IOException("Loop exceeded max iteration count.");
}
@Nonnull
public static PGPKeyRingCollection readKeyRingCollection(@Nonnull InputStream inputStream, boolean isSilent)
throws IOException, PGPException {
return new PGPKeyRingCollection(inputStream, isSilent);
}
}

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pgpainless-core/src/main/java/org/pgpainless/key/parsing/package-info.java
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// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
/**
* Classes related to OpenPGP key reading.
*/
package org.pgpainless.key.parsing;

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pgpainless-core/src/main/kotlin/org/pgpainless/key/parsing/KeyRingReader.kt Normal file
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// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.key.parsing
import org.bouncycastle.openpgp.*
import org.bouncycastle.util.io.Streams
import org.pgpainless.PGPainless
import org.pgpainless.implementation.ImplementationFactory
import org.pgpainless.key.collection.PGPKeyRingCollection
import org.pgpainless.util.ArmorUtils
import java.io.IOException
import java.io.InputStream
import java.nio.charset.Charset
import kotlin.jvm.Throws
class KeyRingReader {
/**
* Read a [PGPKeyRing] (either [PGPSecretKeyRing] or [PGPPublicKeyRing]) from the given [InputStream].
*
* @param inputStream inputStream containing the OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Throws(IOException::class)
fun keyRing(inputStream: InputStream): PGPKeyRing? =
readKeyRing(inputStream)
/**
* Read a [PGPKeyRing] (either [PGPSecretKeyRing] or [PGPPublicKeyRing]) from the given byte array.
*
* @param bytes byte array containing the OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Throws(IOException::class)
fun keyRing(bytes: ByteArray): PGPKeyRing? =
keyRing(bytes.inputStream())
/**
* Read a [PGPKeyRing] (either [PGPSecretKeyRing] or [PGPPublicKeyRing]) from the given
* ASCII armored string.
*
* @param asciiArmored ASCII armored OpenPGP key or certificate
* @return key ring
* @throws IOException in case of an IO error
*/
@Throws(IOException::class)
fun keyRing(asciiArmored: String): PGPKeyRing? =
keyRing(asciiArmored.toByteArray(UTF8))
@Throws(IOException::class)
fun publicKeyRing(inputStream: InputStream): PGPPublicKeyRing? =
readPublicKeyRing(inputStream)
@Throws(IOException::class)
fun publicKeyRing(bytes: ByteArray): PGPPublicKeyRing? =
publicKeyRing(bytes.inputStream())
@Throws(IOException::class)
fun publicKeyRing(asciiArmored: String): PGPPublicKeyRing? =
publicKeyRing(asciiArmored.toByteArray(UTF8))
@Throws(IOException::class)
fun publicKeyRingCollection(inputStream: InputStream): PGPPublicKeyRingCollection =
readPublicKeyRingCollection(inputStream)
@Throws(IOException::class)
fun publicKeyRingCollection(bytes: ByteArray): PGPPublicKeyRingCollection =
publicKeyRingCollection(bytes.inputStream())
@Throws(IOException::class)
fun publicKeyRingCollection(asciiArmored: String): PGPPublicKeyRingCollection =
publicKeyRingCollection(asciiArmored.toByteArray(UTF8))
@Throws(IOException::class)
fun secretKeyRing(inputStream: InputStream): PGPSecretKeyRing? =
readSecretKeyRing(inputStream)
@Throws(IOException::class)
fun secretKeyRing(bytes: ByteArray): PGPSecretKeyRing? =
secretKeyRing(bytes.inputStream())
@Throws(IOException::class)
fun secretKeyRing(asciiArmored: String): PGPSecretKeyRing? =
secretKeyRing(asciiArmored.toByteArray(UTF8))
@Throws(IOException::class)
fun secretKeyRingCollection(inputStream: InputStream): PGPSecretKeyRingCollection =
readSecretKeyRingCollection(inputStream)
@Throws(IOException::class)
fun secretKeyRingCollection(bytes: ByteArray): PGPSecretKeyRingCollection =
secretKeyRingCollection(bytes.inputStream())
@Throws(IOException::class)
fun secretKeyRingCollection(asciiArmored: String): PGPSecretKeyRingCollection =
secretKeyRingCollection(asciiArmored.toByteArray(UTF8))
@Throws(IOException::class)
fun keyRingCollection(inptStream: InputStream, isSilent: Boolean): PGPKeyRingCollection =
readKeyRingCollection(inptStream, isSilent)
@Throws(IOException::class)
fun keyRingCollection(bytes: ByteArray, isSilent: Boolean): PGPKeyRingCollection =
keyRingCollection(bytes.inputStream(), isSilent)
@Throws(IOException::class)
fun keyRingCollection(asciiArmored: String, isSilent: Boolean): PGPKeyRingCollection =
keyRingCollection(asciiArmored.toByteArray(UTF8), isSilent)
companion object {
private const val MAX_ITERATIONS = 10000
@JvmStatic
val UTF8: Charset = charset("UTF8")
/**
* Read a [PGPKeyRing] (either [PGPSecretKeyRing] or [PGPPublicKeyRing]) from the given [InputStream].
* This method will attempt to read at most <pre>maxIterations</pre> objects from the stream before aborting.
* The first [PGPPublicKeyRing] or [PGPSecretKeyRing] will be returned.
*
* @param inputStream inputStream containing the OpenPGP key or certificate
* @param maxIterations maximum number of objects that are read before the method will abort
* @return key ring
* @throws IOException in case of an IO error
*/
@JvmStatic
@JvmOverloads
@Throws(IOException::class)
fun readKeyRing(inputStream: InputStream,
maxIterations: Int = MAX_ITERATIONS): PGPKeyRing? {
val objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream))
try {
for ((i, next) in objectFactory.withIndex()) {
if (i >= maxIterations) {
throw IOException("Loop exceeded max iteration count.")
}
if (next is PGPMarker) {
continue
}
if (next is PGPSecretKeyRing) {
return next
}
if (next is PGPPublicKeyRing) {
return next
}
continue
}
} catch (e : PGPRuntimeOperationException) {
throw e.cause!!
}
return null
}
/**
* Read a public key ring from the provided [InputStream].
* If more than maxIterations PGP packets are encountered before a [PGPPublicKeyRing] is read,
* an [IOException] is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@JvmStatic
@JvmOverloads
@Throws(IOException::class)
fun readPublicKeyRing(inputStream: InputStream,
maxIterations: Int = MAX_ITERATIONS): PGPPublicKeyRing? {
val objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream))
try {
for ((i, next) in objectFactory.withIndex()) {
if (i >= maxIterations) {
throw IOException("Loop exceeded max iteration count.")
}
if (next is PGPMarker) {
continue
}
if (next is PGPPublicKeyRing) {
return next
}
continue
}
} catch (e : PGPRuntimeOperationException) {
throw e.cause!!
}
return null
}
/**
* Read a public key ring collection from the provided [InputStream].
* If more than maxIterations PGP packets are encountered before the stream is exhausted,
* an [IOException] is thrown.
* If the stream contain secret key packets, their public key parts are extracted and returned.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring collection
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@JvmStatic
@JvmOverloads
@Throws(IOException::class)
fun readPublicKeyRingCollection(inputStream: InputStream,
maxIterations: Int = MAX_ITERATIONS): PGPPublicKeyRingCollection {
val objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream))
val certificates = mutableListOf<PGPPublicKeyRing>()
try {
for ((i, next) in objectFactory.withIndex()) {
if (i >= maxIterations) {
throw IOException("Loop exceeded max iteration count.")
}
if (next is PGPMarker) {
continue
}
if (next is PGPPublicKeyRing) {
certificates.add(next)
continue
}
if (next is PGPSecretKeyRing) {
certificates.add(PGPainless.extractCertificate(next))
continue
}
if (next is PGPPublicKeyRingCollection) {
certificates.addAll(next)
continue
}
}
} catch (e : PGPRuntimeOperationException) {
throw e.cause!!
}
return PGPPublicKeyRingCollection(certificates)
}
/**
* Read a secret key ring from the provided [InputStream].
* If more than maxIterations PGP packets are encountered before a [PGPSecretKeyRing] is read,
* an [IOException] is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return public key ring
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@JvmStatic
@JvmOverloads
@Throws(IOException::class)
fun readSecretKeyRing(inputStream: InputStream,
maxIterations: Int = MAX_ITERATIONS): PGPSecretKeyRing? {
val decoderStream = ArmorUtils.getDecoderStream(inputStream)
val objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(decoderStream)
try {
for ((i, next) in objectFactory.withIndex()) {
if (i >= maxIterations) {
throw IOException("Loop exceeded max iteration count.")
}
if (next is PGPMarker) {
continue
}
if (next is PGPSecretKeyRing) {
Streams.drain(decoderStream)
return next
}
}
} catch (e : PGPRuntimeOperationException) {
throw e.cause!!
}
return null
}
/**
* Read a secret key ring collection from the provided [InputStream].
* If more than maxIterations PGP packets are encountered before the stream is exhausted,
* an [IOException] is thrown.
*
* @param inputStream input stream
* @param maxIterations max iterations before abort
* @return secret key ring collection
*
* @throws IOException in case of an IO error or exceeding of max iterations
*/
@JvmStatic
@JvmOverloads
@Throws(IOException::class)
fun readSecretKeyRingCollection(inputStream: InputStream,
maxIterations: Int = MAX_ITERATIONS): PGPSecretKeyRingCollection {
val objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(
ArmorUtils.getDecoderStream(inputStream))
val secretKeys = mutableListOf<PGPSecretKeyRing>()
try {
for ((i, next) in objectFactory.withIndex()) {
if (i >= maxIterations) {
throw IOException("Loop exceeded max iteration count.")
}
if (next is PGPMarker) {
continue
}
if (next is PGPSecretKeyRing) {
secretKeys.add(next)
continue
}
if (next is PGPSecretKeyRingCollection) {
secretKeys.addAll(next)
continue
}
}
} catch (e : PGPRuntimeOperationException) {
throw e.cause!!
}
return PGPSecretKeyRingCollection(secretKeys)
}
@JvmStatic
@Throws(IOException::class)
fun readKeyRingCollection(inputStream: InputStream, isSilent: Boolean): PGPKeyRingCollection =
PGPKeyRingCollection(inputStream, isSilent)
}
}