PGPainless/pgpainless
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Code Issues Releases Wiki Activity

Allow for setting of expiration date during key generation

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This commit is contained in:
Paul Schaub 2021-02-13 12:22:28 +01:00
parent 83117c99cb
commit f2f7305fec
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
3 changed files with 30 additions and 0 deletions
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15
pgpainless-core/src/main/java/org/pgpainless/key/generation/KeyRingBuilder.java
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@ -66,6 +66,7 @@ public class KeyRingBuilder implements KeyRingBuilderInterface {
private String userId;
private final Set<String> additionalUserIds = new LinkedHashSet<>();
private Passphrase passphrase;
private Date expirationDate = null;
/**
* Creates a simple, unencrypted RSA KeyPair of length {@code length} with user-id {@code userId}.
@ -288,6 +289,16 @@ public class KeyRingBuilder implements KeyRingBuilderInterface {
class WithAdditionalUserIdOrPassphraseImpl implements WithAdditionalUserIdOrPassphrase {
@Override
public WithAdditionalUserIdOrPassphrase setExpirationDate(@Nonnull Date expirationDate) {
Date now = new Date();
if (now.after(expirationDate)) {
throw new IllegalArgumentException("Expiration date must be in the future.");
}
KeyRingBuilder.this.expirationDate = expirationDate;
return this;
}
@Override
public WithAdditionalUserIdOrPassphrase withAdditionalUserId(@Nonnull String userId) {
String trimmed = userId.trim();
@ -341,6 +352,10 @@ public class KeyRingBuilder implements KeyRingBuilderInterface {
signatureGenerator = new PGPSignatureGenerator(signer);
PGPSignatureSubpacketGenerator hashedSubPacketGenerator = certKeySpec.getSubpacketGenerator();
hashedSubPacketGenerator.setPrimaryUserID(false, true);
if (expirationDate != null) {
SignatureSubpacketGeneratorUtil.setExpirationDateInSubpacketGenerator(
expirationDate, new Date(), hashedSubPacketGenerator);
}
PGPSignatureSubpacketVector hashedSubPackets = hashedSubPacketGenerator.generate();
// Generator which the user can get the key pair from

9
pgpainless-core/src/main/java/org/pgpainless/key/generation/KeyRingBuilderInterface.java
View file

@ -17,6 +17,7 @@ package org.pgpainless.key.generation;
import java.security.InvalidAlgorithmParameterException;
import java.security.NoSuchAlgorithmException;
import java.util.Date;
import javax.annotation.Nonnull;
import org.bouncycastle.openpgp.PGPException;
@ -60,6 +61,14 @@ public interface KeyRingBuilderInterface {
return withAdditionalUserId(userId.toString());
}
/**
* Set an expiration date for the key.
*
* @param expirationDate date on which the key will expire.
* @return builder
*/
WithAdditionalUserIdOrPassphrase setExpirationDate(@Nonnull Date expirationDate);
WithAdditionalUserIdOrPassphrase withAdditionalUserId(@Nonnull String userId);
WithAdditionalUserIdOrPassphrase withAdditionalUserId(@Nonnull byte[] userId);