From 5bccc1960e51a1cdcc085a780a3bd663e0b7897f Mon Sep 17 00:00:00 2001
From: Paul Schaub <vanitasvitae@fsfe.org>
Date: Tue, 27 Sep 2022 16:11:45 +0200
Subject: [PATCH] Add PGPainless.asciiArmor(key, outputStream)

---
 .../main/java/org/pgpainless/PGPainless.java  | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/pgpainless-core/src/main/java/org/pgpainless/PGPainless.java b/pgpainless-core/src/main/java/org/pgpainless/PGPainless.java
index 9ff2a3b0..e41304b7 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/PGPainless.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/PGPainless.java
@@ -5,9 +5,11 @@
 package org.pgpainless;
 
 import java.io.IOException;
+import java.io.OutputStream;
 import java.util.Date;
 import javax.annotation.Nonnull;
 
+import org.bouncycastle.bcpg.ArmoredOutputStream;
 import org.bouncycastle.openpgp.PGPException;
 import org.bouncycastle.openpgp.PGPKeyRing;
 import org.bouncycastle.openpgp.PGPPublicKeyRing;
@@ -89,9 +91,10 @@ public final class PGPainless {
      * @param key key or certificate
      * @return ascii armored string
      *
-     * @throws IOException in case of an error in the {@link org.bouncycastle.bcpg.ArmoredOutputStream}
+     * @throws IOException in case of an error in the {@link ArmoredOutputStream}
      */
-    public static String asciiArmor(@Nonnull PGPKeyRing key) throws IOException {
+    public static String asciiArmor(@Nonnull PGPKeyRing key)
+            throws IOException {
         if (key instanceof PGPSecretKeyRing) {
             return ArmorUtils.toAsciiArmoredString((PGPSecretKeyRing) key);
         } else {
@@ -99,6 +102,21 @@ public final class PGPainless {
         }
     }
 
+    /**
+     * Wrap a key of certificate in ASCII armor and write the result into the given {@link OutputStream}.
+     *
+     * @param key key or certificate
+     * @param outputStream output stream
+     *
+     * @throws IOException in case of an error ion the {@link ArmoredOutputStream}
+     */
+    public static void asciiArmor(@Nonnull PGPKeyRing key, @Nonnull OutputStream outputStream)
+            throws IOException {
+        ArmoredOutputStream armorOut = ArmorUtils.toAsciiArmoredStream(key, outputStream);
+        key.encode(armorOut);
+        armorOut.close();
+    }
+
     /**
      * Create an {@link EncryptionStream}, which can be used to encrypt and/or sign data using OpenPGP.
      *