From f31f057113ec85ffb62a006ee3ed316a3277c43d Mon Sep 17 00:00:00 2001
From: DoZ10 <lemay1010@hotmail.com>
Date: Mon, 15 May 2017 22:49:44 -0400
Subject: [PATCH] Fixed minor error in offset calculation.

---
 OpenCL/m15400_a0.cl | 6 +++++-
 OpenCL/m15400_a1.cl | 6 +++++-
 OpenCL/m15400_a3.cl | 6 +++++-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/OpenCL/m15400_a0.cl b/OpenCL/m15400_a0.cl
index c030a9245..1d7cd50c0 100644
--- a/OpenCL/m15400_a0.cl
+++ b/OpenCL/m15400_a0.cl
@@ -111,7 +111,7 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
   x[14] += ctx[14];
   x[15] += ctx[15];
 
-  if (offset > 36)
+  if (offset > 56)
   {
     /**
      * Generate a second 64 byte keystream 
@@ -171,6 +171,10 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
     x[31] += ctx[15];
   }
 
+  /**
+   * Encrypt plaintext with keystream
+   */
+
   u32 index  = offset / 4;
   u32 remain = offset % 4;
 
diff --git a/OpenCL/m15400_a1.cl b/OpenCL/m15400_a1.cl
index 9fd51913c..ab7c2f570 100644
--- a/OpenCL/m15400_a1.cl
+++ b/OpenCL/m15400_a1.cl
@@ -111,7 +111,7 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
   x[14] += ctx[14];
   x[15] += ctx[15];
 
-  if (offset > 36)
+  if (offset > 56)
   {
     /**
      * Generate a second 64 byte keystream 
@@ -171,6 +171,10 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
     x[31] += ctx[15];
   }
 
+  /**
+   * Encrypt plaintext with keystream
+   */
+
   u32 index  = offset / 4;
   u32 remain = offset % 4;
 
diff --git a/OpenCL/m15400_a3.cl b/OpenCL/m15400_a3.cl
index 3896a8c23..3ef55c615 100644
--- a/OpenCL/m15400_a3.cl
+++ b/OpenCL/m15400_a3.cl
@@ -109,7 +109,7 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
   x[14] += ctx[14];
   x[15] += ctx[15];
 
-  if (offset > 36)
+  if (offset > 56)
   {
     /**
      * Generate a second 64 byte keystream 
@@ -169,6 +169,10 @@ void chacha20_transform (const u32x w0[4], const u32x w1[4], const u32 position[
     x[31] += ctx[15];
   }
 
+  /**
+   * Encrypt plaintext with keystream
+   */
+
   u32 index  = offset / 4;
   u32 remain = offset % 4;