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Add documentation to KeyRingUtils
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@ -32,6 +32,13 @@ import org.pgpainless.key.protection.SecretKeyRingProtector;
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public class KeyRingUtils {
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/**
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* Return the primary {@link PGPSecretKey} from the provided {@link PGPSecretKeyRing}.
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* If it has no primary secret key, throw a {@link NoSuchElementException}.
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*
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* @param secretKeys secret keys
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* @return primary secret key
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*/
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public static PGPSecretKey requirePrimarySecretKeyFrom(PGPSecretKeyRing secretKeys) {
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PGPSecretKey primarySecretKey = getPrimarySecretKeyFrom(secretKeys);
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if (primarySecretKey == null) {
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@ -40,6 +47,12 @@ public class KeyRingUtils {
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return primarySecretKey;
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}
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/**
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* Return the primary {@link PGPSecretKey} from the provided {@link PGPSecretKeyRing} or null if it has none.
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*
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* @param secretKeys secret key ring
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* @return primary secret key
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*/
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public static PGPSecretKey getPrimarySecretKeyFrom(PGPSecretKeyRing secretKeys) {
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PGPSecretKey secretKey = secretKeys.getSecretKey();
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if (secretKey.isMasterKey()) {
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@ -48,6 +61,13 @@ public class KeyRingUtils {
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return null;
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}
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/**
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* Return the primary {@link PGPPublicKey} from the provided key ring.
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* Throws a {@link NoSuchElementException} if the key ring has no primary public key.
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*
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* @param keyRing key ring
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* @return primary public key
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*/
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public static PGPPublicKey requirePrimaryPublicKeyFrom(PGPKeyRing keyRing) {
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PGPPublicKey primaryPublicKey = getPrimaryPublicKeyFrom(keyRing);
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if (primaryPublicKey == null) {
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@ -56,6 +76,12 @@ public class KeyRingUtils {
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return primaryPublicKey;
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}
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/**
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* Return the primary {@link PGPPublicKey} from the provided key ring or null if it has none.
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*
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* @param keyRing key ring
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* @return primary public key
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*/
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public static PGPPublicKey getPrimaryPublicKeyFrom(PGPKeyRing keyRing) {
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PGPPublicKey primaryPublicKey = keyRing.getPublicKey();
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if (primaryPublicKey.isMasterKey()) {
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@ -64,6 +90,12 @@ public class KeyRingUtils {
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return null;
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}
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/**
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* Extract a {@link PGPPublicKeyRing} containing all public keys from the provided {@link PGPSecretKeyRing}.
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*
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* @param secretKeys secret key ring
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* @return public key ring
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*/
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public static PGPPublicKeyRing publicKeyRingFrom(PGPSecretKeyRing secretKeys) {
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List<PGPPublicKey> publicKeyList = new ArrayList<>();
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Iterator<PGPPublicKey> publicKeyIterator = secretKeys.getPublicKeys();
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@ -74,6 +106,15 @@ public class KeyRingUtils {
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return publicKeyRing;
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}
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/**
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* Unlock a {@link PGPSecretKey} and return the resulting {@link PGPPrivateKey}.
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*
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* @param secretKey secret key
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* @param protector protector to unlock the secret key
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* @return private key
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*
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* @throws PGPException if something goes wrong (eg. wrong passphrase)
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*/
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public static PGPPrivateKey unlockSecretKey(PGPSecretKey secretKey, SecretKeyRingProtector protector) throws PGPException {
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PBESecretKeyDecryptor secretKeyDecryptor = protector.getDecryptor(secretKey.getKeyID());
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PGPPrivateKey privateKey = secretKey.extractPrivateKey(secretKeyDecryptor);
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