diff --git a/apps/enclave/Makefile b/apps/enclave/Makefile
index 499868fcc..34b45f0a1 100644
--- a/apps/enclave/Makefile
+++ b/apps/enclave/Makefile
@@ -41,6 +41,7 @@ LIBS = -lsam -ltomcrypt
 #
 
 OBJS =	$(OBJDIR)/bigint.o \
+		$(OBJDIR)/chk.o \
 		$(OBJDIR)/logger.o \
 		$(OBJDIR)/main.o \
 		$(OBJDIR)/peers.o \
diff --git a/apps/enclave/src/chk.cpp b/apps/enclave/src/chk.cpp
new file mode 100644
index 000000000..59b3506d2
--- /dev/null
+++ b/apps/enclave/src/chk.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2004, Matthew P. Cashdollar <mpc@innographx.com>
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the author nor the names of any contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "platform.hpp"
+#include "chk.hpp"
+
+Chk::Chk(const uchar_t* plaintext, size_t size, const string& mime_type)
+	: data_size(size), mime_type(mime_type)
+{
+	encrypt(plaintext);
+}
+
+void Chk::encrypt(const uchar_t *pt)
+{
+	int rc = register_cipher(&twofish_desc);
+	assert(rc != -1);
+
+	uchar_t key[CRYPT_KEY_SIZE], iv[CRYPT_BLOCK_SIZE];
+	prng.get_bytes(key, CRYPT_KEY_SIZE);
+	prng.get_bytes(iv, CRYPT_BLOCK_SIZE);	
+
+	symmetric_CTR ctr;
+	rc = ctr_start(find_cipher("twofish"), iv, key, CRYPT_KEY_SIZE, 0, &ctr);
+	assert(rc == CRYPT_OK);
+
+	ct = new uchar_t[data_size];
+	rc = ctr_encrypt(pt, ct, data_size, &ctr);
+	assert(rc == CRYPT_OK);
+}
diff --git a/apps/enclave/src/chk.hpp b/apps/enclave/src/chk.hpp
new file mode 100644
index 000000000..8767d5ea4
--- /dev/null
+++ b/apps/enclave/src/chk.hpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2004, Matthew P. Cashdollar <mpc@innographx.com>
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the author nor the names of any contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CHK_HPP
+#define CHK_HPP
+
+class Chk {
+	public:
+		//Chk(const uchar_t* cypertext, size_t size);
+		Chk(const uchar_t* plaintext, size_t size, const string& mime_type);
+		~Chk(void) { delete ct; }
+
+	private:
+		static const size_t CRYPT_BLOCK_SIZE = 16;
+		static const size_t CRYPT_KEY_SIZE = 32;
+
+		void encrypt(const uchar_t *pt);
+
+		uchar_t* ct;  // cyphertext
+		const size_t data_size;
+		const string& mime_type;  // I hate mimes.
+};
+
+#endif  // CHK_HPP
diff --git a/apps/enclave/src/logger.cpp b/apps/enclave/src/logger.cpp
index 9ef448a35..44dc7e470 100644
--- a/apps/enclave/src/logger.cpp
+++ b/apps/enclave/src/logger.cpp
@@ -31,7 +31,8 @@
 #include "platform.hpp"
 #include "logger.hpp"
 
-Logger::Logger(const string& file): file(file)
+Logger::Logger(const string& file)
+	: file(file)
 {
 	loglevel = priority = debug;
 	logf.open(file.c_str(), ios::app);