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Add annotations to GnuPGDummyKeyUtil

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This commit is contained in:
Paul Schaub 2022-11-25 14:40:57 +01:00
parent 7cc2751527
commit e1ab128c2e
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
1 changed files with 10 additions and 9 deletions
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19
pgpainless-core/src/main/java/org/gnupg/GnuPGDummyKeyUtil.java
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@ -13,6 +13,7 @@ import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.pgpainless.key.SubkeyIdentifier;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
@ -40,7 +41,7 @@ public final class GnuPGDummyKeyUtil {
* @param secretKeys secret keys
* @return set of keys with S2K type GNU_DUMMY_S2K and protection mode DIVERT_TO_CARD
*/
public static Set<SubkeyIdentifier> getIdsOfKeysWithGnuPGS2KDivertedToCard(PGPSecretKeyRing secretKeys) {
public static Set<SubkeyIdentifier> getIdsOfKeysWithGnuPGS2KDivertedToCard(@Nonnull PGPSecretKeyRing secretKeys) {
Set<SubkeyIdentifier> hardwareBackedKeys = new HashSet<>();
for (PGPSecretKey secretKey : secretKeys) {
S2K s2K = secretKey.getS2K();
@ -65,7 +66,7 @@ public final class GnuPGDummyKeyUtil {
* @param secretKeys secret keys
* @return builder
*/
public static Builder modify(PGPSecretKeyRing secretKeys) {
public static Builder modify(@Nonnull PGPSecretKeyRing secretKeys) {
return new Builder(secretKeys);
}
@ -73,7 +74,7 @@ public final class GnuPGDummyKeyUtil {
private final PGPSecretKeyRing keys;
private Builder(PGPSecretKeyRing keys) {
private Builder(@Nonnull PGPSecretKeyRing keys) {
this.keys = keys;
}
@ -84,7 +85,7 @@ public final class GnuPGDummyKeyUtil {
* @param filter filter to select keys for removal
* @return modified key ring
*/
public PGPSecretKeyRing removePrivateKeys(KeyFilter filter) {
public PGPSecretKeyRing removePrivateKeys(@Nonnull KeyFilter filter) {
return replacePrivateKeys(GnuPGDummyExtension.NO_PRIVATE_KEY, null, filter);
}
@ -92,13 +93,12 @@ public final class GnuPGDummyKeyUtil {
* Remove all private keys that match the given {@link KeyFilter} from the key ring and replace them with
* GNU_DUMMY keys with S2K protection mode {@link GnuPGDummyExtension#DIVERT_TO_CARD}.
* This method will set the serial number of the card to 0x00000000000000000000000000000000.
*
* NOTE: This method does not actually move any keys to a card.
*
* @param filter filter to select keys for removal
* @return modified key ring
*/
public PGPSecretKeyRing divertPrivateKeysToCard(KeyFilter filter) {
public PGPSecretKeyRing divertPrivateKeysToCard(@Nonnull KeyFilter filter) {
return divertPrivateKeysToCard(filter, new byte[16]);
}
@ -106,21 +106,22 @@ public final class GnuPGDummyKeyUtil {
* Remove all private keys that match the given {@link KeyFilter} from the key ring and replace them with
* GNU_DUMMY keys with S2K protection mode {@link GnuPGDummyExtension#DIVERT_TO_CARD}.
* This method will include the card serial number into the encoded dummy key.
*
* NOTE: This method does not actually move any keys to a card.
*
* @param filter filter to select keys for removal
* @param cardSerialNumber serial number of the card (at most 16 bytes long)
* @return modified key ring
*/
public PGPSecretKeyRing divertPrivateKeysToCard(KeyFilter filter, byte[] cardSerialNumber) {
public PGPSecretKeyRing divertPrivateKeysToCard(@Nonnull KeyFilter filter, @Nullable byte[] cardSerialNumber) {
if (cardSerialNumber != null && cardSerialNumber.length > 16) {
throw new IllegalArgumentException("Card serial number length cannot exceed 16 bytes.");
}
return replacePrivateKeys(GnuPGDummyExtension.DIVERT_TO_CARD, cardSerialNumber, filter);
}
private PGPSecretKeyRing replacePrivateKeys(GnuPGDummyExtension extension, byte[] serial, KeyFilter filter) {
private PGPSecretKeyRing replacePrivateKeys(@Nonnull GnuPGDummyExtension extension,
@Nullable byte[] serial,
@Nonnull KeyFilter filter) {
byte[] encodedSerial = serial != null ? encodeSerial(serial) : null;
S2K s2k = extensionToS2K(extension);