diff --git a/core/src/main/java/moe/kyokobot/koe/crypto/EncryptionMode.java b/core/src/main/java/moe/kyokobot/koe/crypto/EncryptionMode.java
index 4a22a5b..09f9444 100644
--- a/core/src/main/java/moe/kyokobot/koe/crypto/EncryptionMode.java
+++ b/core/src/main/java/moe/kyokobot/koe/crypto/EncryptionMode.java
@@ -5,6 +5,8 @@
 import java.util.List;
 
 public interface EncryptionMode {
+    int ZERO_BYTES_LENGTH = 32; // For XSalsa20Poly1305
+
     boolean box(ByteBuf opus, int start, ByteBuf output, byte[] secretKey);
 
     String getName();
diff --git a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305EncryptionMode.java b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305EncryptionMode.java
index 2d62aec..ccd53d8 100644
--- a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305EncryptionMode.java
+++ b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305EncryptionMode.java
@@ -5,8 +5,8 @@
 
 public class XSalsa20Poly1305EncryptionMode implements EncryptionMode {
     private final byte[] extendedNonce = new byte[24];
-    private final byte[] m = new byte[984];
-    private final byte[] c = new byte[984];
+    private final byte[] m = new byte[1276 + ZERO_BYTES_LENGTH];
+    private final byte[] c = new byte[1276 + ZERO_BYTES_LENGTH];
     private final TweetNaclFastInstanced nacl = new TweetNaclFastInstanced();
 
     @Override
diff --git a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305LiteEncryptionMode.java b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305LiteEncryptionMode.java
index 98b4395..6dfd0f1 100644
--- a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305LiteEncryptionMode.java
+++ b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305LiteEncryptionMode.java
@@ -5,8 +5,8 @@
 
 public class XSalsa20Poly1305LiteEncryptionMode implements EncryptionMode {
     private final byte[] extendedNonce = new byte[24];
-    private final byte[] m = new byte[984];
-    private final byte[] c = new byte[984];
+    private final byte[] m = new byte[1276 + ZERO_BYTES_LENGTH];
+    private final byte[] c = new byte[1276 + ZERO_BYTES_LENGTH];
     private final TweetNaclFastInstanced nacl = new TweetNaclFastInstanced();
     private int seq = 0x80000000;
 
diff --git a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305SuffixEncryptionMode.java b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305SuffixEncryptionMode.java
index 6ad2925..db7fb95 100644
--- a/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305SuffixEncryptionMode.java
+++ b/core/src/main/java/moe/kyokobot/koe/crypto/XSalsa20Poly1305SuffixEncryptionMode.java
@@ -7,8 +7,8 @@
 
 public class XSalsa20Poly1305SuffixEncryptionMode implements EncryptionMode {
     private final byte[] extendedNonce = new byte[24];
-    private final byte[] m = new byte[984];
-    private final byte[] c = new byte[984];
+    private final byte[] m = new byte[1276 + ZERO_BYTES_LENGTH];
+    private final byte[] c = new byte[1276 + ZERO_BYTES_LENGTH];
     private final TweetNaclFastInstanced nacl = new TweetNaclFastInstanced();
 
     @Override