diff --git a/simon.h b/simon.h
index 3ecd0318..4530df07 100644
--- a/simon.h
+++ b/simon.h
@@ -94,7 +94,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Enc : public Base
     {
-    protected:
+    public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SIMON64_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -107,7 +107,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Dec : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SIMON64_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -151,7 +151,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Enc : public Base
     {
-    protected:
+    public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SIMON128_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -164,7 +164,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Dec : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SIMON128_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
diff --git a/speck.h b/speck.h
index e0c4051f..8ce4a871 100644
--- a/speck.h
+++ b/speck.h
@@ -94,7 +94,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Enc : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SPECK64_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -107,7 +107,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Dec : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SPECK64_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -151,7 +151,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Enc : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
@@ -164,7 +164,7 @@ public:
     /// \since Crypto++ 6.0
     class CRYPTOPP_NO_VTABLE Dec : public Base
     {
-    protected:
+	public:
         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 #if CRYPTOPP_SPECK128_ADVANCED_PROCESS_BLOCKS
         size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;