From 83ef9cfe80cfbf12d59f7ad7beac3f7eda6c2631 Mon Sep 17 00:00:00 2001
From: Paul Schaub <vanitasvitae@fsfe.org>
Date: Tue, 31 Jan 2023 18:20:03 +0100
Subject: [PATCH] SOP encrypt: Throw MissingArg if no encryption method was
 provided.

---
 .../src/main/java/org/pgpainless/sop/EncryptImpl.java          | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java b/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
index 1874d9e1..62d20bf0 100644
--- a/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
+++ b/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
@@ -113,6 +113,9 @@ public class EncryptImpl implements Encrypt {
 
     @Override
     public Ready plaintext(InputStream plaintext) throws IOException {
+        if (!encryptionOptions.hasEncryptionMethod()) {
+            throw new SOPGPException.MissingArg("Missing encryption method.");
+        }
         ProducerOptions producerOptions = signingOptions != null ?
                 ProducerOptions.signAndEncrypt(encryptionOptions, signingOptions) :
                 ProducerOptions.encrypt(encryptionOptions);