Add tqca-tls plugin to the tqca package.

Signed-off-by: gregory guy <gregory-tde@laposte.net>
Signed-off-by: Slavek Banko <slavek.banko@axis.cz>

5 files changed, 1630 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f76e9e8..4f7ea5d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,6 +50,13 @@ option( WITH_ALL_OPTIONS    "Enable all optional support" OFF )
 option( WITH_GCC_VISIBILITY "Enable fvisibility and fvisibility-inlines-hidden" ${WITH_ALL_OPTIONS} )
 
 
+##### user requested modules
+
+option( BUILD_ALL      "Build all" ON )
+option( BUILD_TQCA     "Build tqca shared lib" ${BUILD_ALL} )
+option( BUILD_TQCA_TLS "Build tqca-tls plugin" ${BUILD_ALL} )
+
+
 ##### configure checks
 
 include( ConfigureChecks.cmake )
@@ -66,7 +73,8 @@ set( CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--no-undefined"
 
 ##### source directories
 
-add_subdirectory( src )
+tde_conditional_add_subdirectory( BUILD_TQCA src )
+tde_conditional_add_subdirectory( BUILD_TQCA_TLS src/tls )
 
 
 ##### write configure files
diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index c9b5ddc..6c90f15 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -23,6 +23,7 @@ if( WITH_GCC_VISIBILITY )
 endif( WITH_GCC_VISIBILITY )
 
 
+if( BUILD_TQCA )
 ##### look for tqt3 headers path
 
 execute_process(
@@ -31,3 +32,47 @@ execute_process(
       OUTPUT_VARIABLE TQT_HEADERS_DIRS
       OUTPUT_STRIP_TRAILING_WHITESPACE
 )
+endif( BUILD_TQCA )
+
+
+if( BUILD_TQCA_TLS )
+##### check for openssl
+
+pkg_search_module( SSL openssl )
+
+if( NOT SSL_FOUND )
+    check_include_file( openssl/ssl.h HAVE_OPENSSL_H )
+    check_library_exists( ssl OPENSSL_init_ssl "" HAVE_LIBSSL_11 )
+    check_library_exists( crypto EVP_EncryptInit_ex "" HAVE_LIBCRYPTO )
+
+    if( NOT HAVE_LIBSSL_11 )
+        check_library_exists( ssl SSL_library_init "" HAVE_LIBSSL )
+    endif()
+
+    if( HAVE_OPENSSL_H AND HAVE_LIBCRYPTO AND (HAVE_LIBSSL_11 OR HAVE_LIBSSL)  )
+        set( SSL_FOUND 1 CACHE INTERNAL "" FORCE )
+        find_file( OPENSSLV_H openssl/opensslv.h )
+        file( STRINGS "${OPENSSLV_H}" SSL_VERSION REGEX "#[ \t]*define[ \t]*OPENSSL_VERSION_TEXT" )
+        string( REGEX REPLACE "# *define[ \t]*OPENSSL_VERSION_TEXT[ \t]*\"[^0-9 ]* *([^ ]*).*" "\\1" SSL_VERSION "${SSL_VERSION}" )
+        set( SSL_VERSION "${SSL_VERSION}" CACHE INTERNAL "" FORCE )
+        set( SSL_LIBRARIES "ssl;crypto" CACHE INTERNAL "ssl and crypto libs" FORCE )
+    endif()
+endif( NOT SSL_FOUND )
+
+if( NOT SSL_FOUND )
+    tde_message_fatal( "OpenSSL is required but was not found on your system" )
+endif()
+
+
+##### look for tqt3 plugins path
+
+execute_process(
+      COMMAND ${PKG_CONFIG_EXECUTABLE}
+      --variable=pluginsdir tqt-mt
+      OUTPUT_VARIABLE TQT_PLUGINS_DIR
+      OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+if( TQT_PLUGINS_DIR )
+    set( TQT_PLUGINS_CRYPTO_DIR "${TQT_PLUGINS_DIR}/crypto" )
+endif()
+endif( BUILD_TQCA_TLS )
diff --git a/src/tls/CMakeLists.txt b/src/tls/CMakeLists.txt
new file mode 100644
index 0000000..45fcf10
--- /dev/null
+++ b/src/tls/CMakeLists.txt
@@ -0,0 +1,27 @@
+include_directories(
+  ${CMAKE_CURRENT_BINARY_DIR}
+  ${CMAKE_CURRENT_SOURCE_DIR}
+  ${CMAKE_BINARY_DIR}
+  ${CMAKE_SOURCE_DIR}
+  ${TQT_INCLUDE_DIRS}
+)
+
+link_directories(
+  ${TQT_LIBRARY_DIRS}
+)
+
+add_definitions( -DTQCA_PLUGIN )
+
+
+##### tqca-tls (shared)
+
+tde_add_library( tqca-tls SHARED NO_LIBTOOL_FILE AUTOMOC
+
+  SOURCES
+        tqca-tls.cpp
+  LINK
+     ${TQT_LIBRARIES}
+     ${SSL_LIBRARIES}
+
+  DESTINATION ${TQT_PLUGINS_CRYPTO_DIR}
+)
diff --git a/src/tls/tqca-tls.cpp b/src/tls/tqca-tls.cpp
new file mode 100644
index 0000000..e17f649
--- /dev/null
+++ b/src/tls/tqca-tls.cpp
@@ -0,0 +1,1514 @@
+/*
+ * qca-tls.cpp - TLS plugin for TQCA
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "tqca-tls.h"
+
+#include <tqregexp.h>
+
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+#include <openssl/evp.h>
+#include <openssl/bio.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+#if OPENSSL_VERSION_NUMBER >= 0x00907000
+#define OSSL_097
+#endif
+
+#ifndef OSSL_097
+#define NO_AES
+#endif
+
+static TQByteArray lib_randomArray(int size)
+{
+	if(RAND_status() == 0) {
+		srand(time(NULL));
+		char buf[128];
+		for(int n = 0; n < 128; ++n)
+			buf[n] = rand();
+		RAND_seed(buf, 128);
+	}
+	TQByteArray a(size);
+	RAND_bytes((unsigned char *)a.data(), a.size());
+	return a;
+}
+
+static bool lib_generateKeyIV(const EVP_CIPHER *_type, const TQByteArray &data, const TQByteArray &salt, TQByteArray *key, TQByteArray *iv, int keysize=-1)
+{
+	TQByteArray k, i;
+	unsigned char *kp = 0;
+	unsigned char *ip = 0;
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+	EVP_CIPHER type = *_type;
+	EVP_CIPHER *loctype = &type;
+	if(keysize != -1)
+		type.key_len = keysize;
+#else
+	EVP_CIPHER *loctype = EVP_CIPHER_meth_dup(_type);
+	Q_UNUSED(keysize)
+#endif
+	if(key) {
+		k.resize(EVP_CIPHER_key_length(loctype));
+		kp = (unsigned char *)k.data();
+	}
+	if(iv) {
+		i.resize(EVP_CIPHER_iv_length(loctype));
+		ip = (unsigned char *)i.data();
+	}
+	int res = EVP_BytesToKey(loctype, EVP_sha1(), (unsigned char *)salt.data(), (unsigned char *)data.data(), data.size(), 1, kp, ip);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
+	EVP_CIPHER_meth_free(loctype);
+#endif
+	if (!res)
+		return false;
+	if(key)
+		*key = k;
+	if(iv)
+		*iv = i;
+	return true;
+}
+
+static void appendArray(TQByteArray *a, const TQByteArray &b)
+{
+	int oldsize = a->size();
+	a->resize(oldsize + b.size());
+	memcpy(a->data() + oldsize, b.data(), b.size());
+}
+
+static TQByteArray bio2buf(BIO *b)
+{
+	TQByteArray buf;
+	while(1) {
+		char block[1024];
+		int ret = BIO_read(b, block, 1024);
+		int oldsize = buf.size();
+		buf.resize(oldsize + ret);
+		memcpy(buf.data() + oldsize, block, ret);
+		if(ret != 1024)
+			break;
+	}
+	BIO_free(b);
+	return buf;
+}
+
+class SHA1Context : public TQCA_HashContext
+{
+public:
+	SHA1Context()
+	{
+		reset();
+	}
+
+	TQCA_HashContext *clone()
+	{
+		return new SHA1Context(*this);
+	}
+
+	void reset()
+	{
+		SHA1_Init(&c);
+	}
+
+	void update(const char *in, unsigned int len)
+	{
+		SHA1_Update(&c, in, len);
+	}
+
+	void final(TQByteArray *out)
+	{
+		TQByteArray buf(20);
+		SHA1_Final((unsigned char *)buf.data(), &c);
+		*out = buf;
+	}
+
+	SHA_CTX c;
+};
+
+class MD5Context : public TQCA_HashContext
+{
+public:
+	MD5Context()
+	{
+		reset();
+	}
+
+	TQCA_HashContext *clone()
+	{
+		return new MD5Context(*this);
+	}
+
+	void reset()
+	{
+		MD5_Init(&c);
+	}
+
+	void update(const char *in, unsigned int len)
+	{
+		MD5_Update(&c, in, len);
+	}
+
+	void final(TQByteArray *out)
+	{
+		TQByteArray buf(16);
+		MD5_Final((unsigned char *)buf.data(), &c);
+		*out = buf;
+	}
+
+	MD5_CTX c;
+};
+
+class EVPCipherContext : public TQCA_CipherContext
+{
+public:
+	EVPCipherContext()
+	{
+		type = 0;
+	}
+
+	virtual ~EVPCipherContext()
+	{
+		if(type) {
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+			EVP_CIPHER_CTX_cleanup(c);
+			OPENSSL_free(c);
+#else
+			EVP_CIPHER_CTX_free(c);
+#endif
+			type = 0;
+		}
+	}
+
+	TQCA_CipherContext *clone()
+	{
+		EVPCipherContext *cc = cloneSelf();
+		cc->r = r.copy();
+		return cc;
+	}
+
+	virtual EVPCipherContext *cloneSelf() const=0;
+	virtual const EVP_CIPHER *getType(int mode) const=0;
+
+	int keySize() { return EVP_CIPHER_key_length(getType(TQCA::CBC)); }
+	int blockSize() { return EVP_CIPHER_block_size(getType(TQCA::CBC)); }
+
+	bool generateKey(char *out, int keysize)
+	{
+		TQByteArray a;
+		if(!lib_generateKeyIV(getType(TQCA::CBC), lib_randomArray(128), lib_randomArray(2), &a, 0, keysize))
+			return false;
+		memcpy(out, a.data(), a.size());
+		return true;
+	}
+
+	bool generateIV(char *out)
+	{
+		TQByteArray a;
+		if(!lib_generateKeyIV(getType(TQCA::CBC), lib_randomArray(128), lib_randomArray(2), 0, &a))
+			return false;
+		memcpy(out, a.data(), a.size());
+		return true;
+	}
+
+	bool setup(int _dir, int mode, const char *key, int keysize, const char *iv, bool _pad)
+	{
+		dir = _dir;
+		pad = _pad;
+		type = getType(mode);
+		r.resize(0);
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+		c = (EVP_CIPHER_CTX*)OPENSSL_malloc(sizeof(EVP_CIPHER_CTX));
+		EVP_CIPHER_CTX_init(c);
+#else
+		c = EVP_CIPHER_CTX_new();
+#endif
+
+		if(dir == TQCA::Encrypt) {
+			if(!EVP_EncryptInit(c, type, NULL, NULL))
+				return false;
+			if(keysize != EVP_CIPHER_key_length(type))
+				EVP_CIPHER_CTX_set_key_length(c, keysize);
+			if(!EVP_EncryptInit(c, NULL, (unsigned char *)key, (unsigned char *)iv))
+				return false;
+		}
+		else {
+			if(!EVP_DecryptInit(c, type, NULL, NULL))
+				return false;
+			if(keysize != EVP_CIPHER_key_length(type))
+				EVP_CIPHER_CTX_set_key_length(c, keysize);
+			if(!EVP_DecryptInit(c, NULL, (unsigned char *)key, (unsigned char *)iv))
+				return false;
+		}
+		return true;
+	}
+
+	bool update(const char *in, unsigned int len)
+	{
+		TQByteArray result(len + EVP_CIPHER_block_size(type));
+		int olen;
+		if(dir == TQCA::Encrypt || !pad) {
+			if(!EVP_EncryptUpdate(c, (unsigned char *)result.data(), &olen, (unsigned char *)in, len))
+				return false;
+		}
+		else {
+			if(!EVP_DecryptUpdate(c, (unsigned char *)result.data(), &olen, (unsigned char *)in, len))
+				return false;
+		}
+		result.resize(olen);
+		appendArray(&r, result);
+		return true;
+	}
+
+	bool final(TQByteArray *out)
+	{
+		if(pad) {
+			TQByteArray result(EVP_CIPHER_block_size(type));
+			int olen;
+			if(dir == TQCA::Encrypt) {
+				if(!EVP_EncryptFinal_ex(c, (unsigned char *)result.data(), &olen))
+					return false;
+			}
+			else {
+				if(!EVP_DecryptFinal_ex(c, (unsigned char *)result.data(), &olen))
+					return false;
+			}
+			result.resize(olen);
+			appendArray(&r, result);
+		}
+
+		*out = r.copy();
+		r.resize(0);
+		return true;
+	}
+
+	EVP_CIPHER_CTX *c;
+	const EVP_CIPHER *type;
+	TQByteArray r;
+	int dir;
+	bool pad;
+};
+
+class BlowFishContext : public EVPCipherContext
+{
+public:
+	EVPCipherContext *cloneSelf() const { return new BlowFishContext(*this); }
+	const EVP_CIPHER *getType(int mode) const
+	{
+		if(mode == TQCA::CBC)
+			return EVP_bf_cbc();
+		else if(mode == TQCA::CFB)
+			return EVP_bf_cfb();
+		else
+			return 0;
+	}
+};
+
+class TripleDESContext : public EVPCipherContext
+{
+public:
+	EVPCipherContext *cloneSelf() const { return new TripleDESContext(*this); }
+	const EVP_CIPHER *getType(int mode) const
+	{
+		if(mode == TQCA::CBC)
+			return EVP_des_ede3_cbc();
+		else if(mode == TQCA::CFB)
+			return EVP_des_ede3_cfb();
+		else
+			return 0;
+	}
+};
+
+#ifndef NO_AES
+class AES128Context : public EVPCipherContext
+{
+public:
+	EVPCipherContext *cloneSelf() const { return new AES128Context(*this); }
+	const EVP_CIPHER *getType(int mode) const
+	{
+		if(mode == TQCA::CBC)
+			return EVP_aes_128_cbc();
+		else if(mode == TQCA::CFB)
+			return EVP_aes_128_cfb();
+		else
+			return 0;
+	}
+};
+
+class AES256Context : public EVPCipherContext
+{
+public:
+	EVPCipherContext *cloneSelf() const { return new AES256Context(*this); }
+	const EVP_CIPHER *getType(int mode) const
+	{
+		if(mode == TQCA::CBC)
+			return EVP_aes_256_cbc();
+		else if(mode == TQCA::CFB)
+			return EVP_aes_256_cfb();
+		else
+			return 0;
+	}
+};
+#endif
+
+class RSAKeyContext : public TQCA_RSAKeyContext
+{
+public:
+	RSAKeyContext()
+	{
+		pub = 0;
+		sec = 0;
+	}
+
+	~RSAKeyContext()
+	{
+		reset();
+	}
+
+	void reset()
+	{
+		if(pub) {
+			RSA_free(pub);
+			pub = 0;
+		}
+		if(sec) {
+			RSA_free(sec);
+			sec = 0;
+		}
+	}
+
+	void separate(RSA *r, RSA **_pub, RSA **_sec)
+	{
+		// public
+		unsigned char *buf, *p;
+		int len = i2d_RSAPublicKey(r, NULL);
+		if(len > 0) {
+			buf = (unsigned char *)malloc(len);
+			p = buf;
+			i2d_RSAPublicKey(r, &p);
+			p = buf;
+#ifdef OSSL_097
+			*_pub = d2i_RSAPublicKey(NULL, (const unsigned char **)&p, len);
+#else
+			*_pub = d2i_RSAPublicKey(NULL, (unsigned char **)&p, len);
+#endif
+			free(buf);
+		}
+
+		len = i2d_RSAPrivateKey(r, NULL);
+		if(len > 0) {
+			buf = (unsigned char *)malloc(len);
+			p = buf;
+			i2d_RSAPrivateKey(r, &p);
+			p = buf;
+#ifdef OSSL_097
+			*_sec = d2i_RSAPrivateKey(NULL, (const unsigned char **)&p, len);
+#else
+			*_sec = d2i_RSAPrivateKey(NULL, (unsigned char **)&p, len);
+#endif
+			free(buf);
+		}
+	}
+
+	bool isNull() const
+	{
+		if(!pub && !sec)
+			return true;
+		return false;
+	}
+
+	bool havePublic() const
+	{
+		return pub ? true : false;
+	}
+
+	bool havePrivate() const
+	{
+		return sec ? true : false;
+	}
+
+	bool createFromDER(const char *in, unsigned int len)
+	{
+		RSA *r;
+		void *p;
+
+		// private?
+		p = (void *)in;
+#ifdef OSSL_097
+		r = d2i_RSAPrivateKey(NULL, (const unsigned char **)&p, len);
+#else
+		r = d2i_RSAPrivateKey(NULL, (unsigned char **)&p, len);
+#endif
+		if(r) {
+			reset();
+
+			// private means both, I think, so separate them
+			separate(r, &pub, &sec);
+			return true;
+		}
+		else {
+			// public?
+			p = (void *)in;
+#ifdef OSSL_097
+			r = d2i_RSAPublicKey(NULL, (const unsigned char **)&p, len);
+#else
+			r = d2i_RSAPublicKey(NULL, (unsigned char **)&p, len);
+#endif
+			if(!r) {
+				// try this other public function, for whatever reason
+				p = (void *)in;
+				r = d2i_RSA_PUBKEY(NULL, (const unsigned char **)&p, len);
+			}
+			if(r) {
+				if(pub) {
+					RSA_free(pub);
+				}
+				pub = r;
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	bool createFromPEM(const char *in, unsigned int len)
+	{
+		BIO *bi;
+
+		// private?
+		bi = BIO_new(BIO_s_mem());
+		BIO_write(bi, in, len);
+		RSA *r = PEM_read_bio_RSAPrivateKey(bi, NULL, NULL, NULL);
+		BIO_free(bi);
+		if(r) {
+			reset();
+			separate(r, &pub, &sec);
+			return true;
+		}
+		else {
+			// public?
+			bi = BIO_new(BIO_s_mem());
+			BIO_write(bi, in, len);
+			r = PEM_read_bio_RSAPublicKey(bi, NULL, NULL, NULL);
+			BIO_free(bi);
+			if(r) {
+				if(pub) {
+					RSA_free(pub);
+				}
+				pub = r;
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	bool createFromNative(void *in)
+	{
+		reset();
+		separate((RSA *)in, &pub, &sec);
+		return true;
+	}
+
+	bool generate(unsigned int bits)
+	{
+		BIGNUM *bign = BN_new();
+		if (BN_set_word(bign, RSA_F4) != 1)
+		{
+			BN_free(bign);
+			return false;
+		}
+		RSA *r = RSA_new();
+		if(!r)
+		{
+			BN_free(bign);
+			return false;
+		}
+		RSA_generate_key_ex(r, bits, bign, NULL);
+		separate(r, &pub, &sec);
+		RSA_free(r);
+		BN_free(bign);
+		return true;
+	}
+
+	TQCA_RSAKeyContext *clone() const
+	{
+		// deep copy
+		RSAKeyContext *c = new RSAKeyContext;
+		if(pub) {
+			c->pub = RSAPublicKey_dup(pub);
+		}
+		if(sec) {
+			c->sec = RSAPrivateKey_dup(sec);
+		}
+		return c;
+	}
+
+	bool toDER(TQByteArray *out, bool publicOnly)
+	{
+		if(sec && !publicOnly) {
+			int len = i2d_RSAPrivateKey(sec, NULL);
+			TQByteArray buf(len);
+			unsigned char *p;
+			p = (unsigned char *)buf.data();
+			i2d_RSAPrivateKey(sec, &p);
+			*out = buf;
+			return true;
+		}
+		else if(pub) {
+			int len = i2d_RSAPublicKey(pub, NULL);
+			TQByteArray buf(len);
+			unsigned char *p;
+			p = (unsigned char *)buf.data();
+			i2d_RSAPublicKey(pub, &p);
+			*out = buf;
+			return true;
+		}
+		else
+			return false;
+	}
+
+	bool toPEM(TQByteArray *out, bool publicOnly)
+	{
+		if(sec && !publicOnly) {
+			BIO *bo = BIO_new(BIO_s_mem());
+			PEM_write_bio_RSAPrivateKey(bo, sec, NULL, NULL, 0, NULL, NULL);
+			*out = bio2buf(bo);
+			return true;
+		}
+		else if(pub) {
+			BIO *bo = BIO_new(BIO_s_mem());
+			PEM_write_bio_RSAPublicKey(bo, pub);
+			*out = bio2buf(bo);
+			return true;
+		}
+		else
+			return false;
+
+	}
+
+	bool encrypt(const TQByteArray &in, TQByteArray *out, bool oaep)
+	{
+		if(!pub)
+			return false;
+
+		int size = RSA_size(pub);
+		int flen = in.size();
+		if(oaep) {
+			if(flen >= size - 41)
+				flen = size - 41;
+		}
+		else {
+			if(flen >= size - 11)
+				flen = size - 11;
+		}
+		TQByteArray result(size);
+		unsigned char *from = (unsigned char *)in.data();
+		unsigned char *to = (unsigned char *)result.data();
+		int ret = RSA_public_encrypt(flen, from, to, pub, oaep ? RSA_PKCS1_OAEP_PADDING : RSA_PKCS1_PADDING);
+		if(ret == -1)
+			return false;
+		result.resize(ret);
+
+		*out = result;
+		return true;
+	}
+
+	bool decrypt(const TQByteArray &in, TQByteArray *out, bool oaep)
+	{
+		if(!sec)
+			return false;
+
+		int size = RSA_size(sec);
+		int flen = in.size();
+		TQByteArray result(size);
+		unsigned char *from = (unsigned char *)in.data();
+		unsigned char *to = (unsigned char *)result.data();
+		int ret = RSA_private_decrypt(flen, from, to, sec, oaep ? RSA_PKCS1_OAEP_PADDING : RSA_PKCS1_PADDING);
+		if(ret == -1)
+			return false;
+		result.resize(ret);
+
+		*out = result;
+		return true;
+	}
+
+	RSA *pub, *sec;
+};
+
+static TQValueList<TQCA_CertProperty> nameToProperties(struct X509_name_st *name)
+{
+	TQValueList<TQCA_CertProperty> list;
+
+	for(int n = 0; n < X509_NAME_entry_count(name); ++n) {
+		X509_NAME_ENTRY *ne = X509_NAME_get_entry(name, n);
+		TQCA_CertProperty p;
+
+		ASN1_OBJECT *ao = X509_NAME_ENTRY_get_object(ne);
+		int nid = OBJ_obj2nid(ao);
+		if(nid == NID_undef)
+			continue;
+		p.var = OBJ_nid2sn(nid);
+
+		ASN1_STRING *as = X509_NAME_ENTRY_get_data(ne);
+		TQCString c;
+		c.resize(as->length+1);
+		strncpy(c.data(), (char *)as->data, as->length);
+		p.val = TQString::fromLatin1(c);
+		list += p;
+	}
+
+	return list;
+}
+
+// (taken from tdelibs) -- Justin
+//
+// This code is mostly taken from OpenSSL v0.9.5a
+// by Eric Young
+TQDateTime ASN1_UTCTIME_TQDateTime(ASN1_UTCTIME *tm, int *isGmt)
+{
+	TQDateTime qdt;
+	char *v;
+	int gmt=0;
+	int i;
+	int y=0,M=0,d=0,h=0,m=0,s=0;
+	TQDate qdate;
+	TQTime qtime;
+
+	i = tm->length;
+	v = (char *)tm->data;
+
+	if (i < 10) goto auq_err;
+	if (v[i-1] == 'Z') gmt=1;
+	for (i=0; i<10; i++)
+		if ((v[i] > '9') || (v[i] < '0')) goto auq_err;
+	y = (v[0]-'0')*10+(v[1]-'0');
+	if (y < 50) y+=100;
+	M = (v[2]-'0')*10+(v[3]-'0');
+	if ((M > 12) || (M < 1)) goto auq_err;
+	d = (v[4]-'0')*10+(v[5]-'0');
+	h = (v[6]-'0')*10+(v[7]-'0');
+	m =  (v[8]-'0')*10+(v[9]-'0');
+	if (    (v[10] >= '0') && (v[10] <= '9') &&
+		(v[11] >= '0') && (v[11] <= '9'))
+		s = (v[10]-'0')*10+(v[11]-'0');
+
+	// localize the date and display it.
+	qdate.setYMD(y+1900, M, d);
+	qtime.setHMS(h,m,s);
+	qdt.setDate(qdate); qdt.setTime(qtime);
+auq_err:
+	if (isGmt) *isGmt = gmt;
+	return qdt;
+}
+
+// (adapted from tdelibs) -- Justin
+static bool cnMatchesAddress(const TQString &_cn, const TQString &peerHost)
+{
+	TQString cn = _cn.stripWhiteSpace().lower();
+	TQRegExp rx;
+
+	// Check for invalid characters
+	if(TQRegExp("[^a-zA-Z0-9\\.\\*\\-]").search(cn) >= 0)
+		return false;
+
+	// Domains can legally end with '.'s.  We don't need them though.
+	while(cn.endsWith("."))
+		cn.truncate(cn.length()-1);
+
+	// Do not let empty CN's get by!!
+	if(cn.isEmpty())
+		return false;
+
+	// Check for IPv4 address
+	rx.setPattern("[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}");
+	if(rx.exactMatch(peerHost))
+		return peerHost == cn;
+
+	// Check for IPv6 address here...
+	rx.setPattern("^\\[.*\\]$");
+	if(rx.exactMatch(peerHost))
+		return peerHost == cn;
+
+	if(cn.contains('*')) {
+		// First make sure that there are at least two valid parts
+		// after the wildcard (*).
+		TQStringList parts = TQStringList::split('.', cn, false);
+
+		while(parts.count() > 2)
+			parts.remove(parts.begin());
+
+		if(parts.count() != 2) {
+			return false;  // we don't allow *.root - that's bad
+		}
+
+		if(parts[0].contains('*') || parts[1].contains('*')) {
+			return false;
+		}
+
+		// RFC2818 says that *.example.com should match against
+		// foo.example.com but not bar.foo.example.com
+		// (ie. they must have the same number of parts)
+		if(TQRegExp(cn, false, true).exactMatch(peerHost) &&
+			TQStringList::split('.', cn, false).count() ==
+			TQStringList::split('.', peerHost, false).count())
+			return true;
+
+		return false;
+	}
+
+	// We must have an exact match in this case (insensitive though)
+	// (note we already did .lower())
+	if(cn == peerHost)
+		return true;
+	return false;
+}
+
+class CertContext : public TQCA_CertContext
+{
+public:
+	CertContext()
+	{
+		x = 0;
+	}
+
+	~CertContext()
+	{
+		reset();
+	}
+
+	TQCA_CertContext *clone() const
+	{
+		CertContext *c = new CertContext(*this);
+		if(x) {
+			c->x = X509_dup(x);
+		}
+		return c;
+	}
+
+	void reset()
+	{
+		if(x) {
+			X509_free(x);
+			x = 0;
+
+			serial = "";
+			v_subject = "";
+			v_issuer = "";
+			cp_subject.clear();
+			cp_issuer.clear();
+			na = TQDateTime();
+			nb = TQDateTime();
+		}
+	}
+
+	bool isNull() const
+	{
+		return (x ? false: true);
+	}
+
+	bool createFromDER(const char *in, unsigned int len)
+	{
+		const unsigned char *p = (const unsigned char *)in;
+		X509 *t = d2i_X509(NULL, &p, len);
+		if(!t)
+			return false;
+		fromX509(t);
+		X509_free(t);
+		return true;
+	}
+
+	bool createFromPEM(const char *in, unsigned int len)
+	{
+		BIO *bi = BIO_new(BIO_s_mem());
+		BIO_write(bi, in, len);
+		X509 *t = PEM_read_bio_X509(bi, NULL, NULL, NULL);
+		BIO_free(bi);
+		if(!t)
+			return false;
+		fromX509(t);
+		X509_free(t);
+		return true;
+	}
+
+	bool toDER(TQByteArray *out)
+	{
+		int len = i2d_X509(x, NULL);
+		TQByteArray buf(len);
+		unsigned char *p = (unsigned char *)buf.data();
+		i2d_X509(x, &p);
+		*out = buf;
+		return true;
+	}
+
+	bool toPEM(TQByteArray *out)
+	{
+		BIO *bo = BIO_new(BIO_s_mem());
+		PEM_write_bio_X509(bo, x);
+		*out = bio2buf(bo);
+		return true;
+	}
+
+	void fromX509(X509 *t)
+	{
+		reset();
+		x = X509_dup(t);
+
+		// serial number
+		ASN1_INTEGER *ai = X509_get_serialNumber(x);
+		if(ai) {
+			char *rep = i2s_ASN1_INTEGER(NULL, ai);
+			serial = rep;
+			OPENSSL_free(rep);
+		}
+
+		// validity dates
+		nb = ASN1_UTCTIME_TQDateTime(X509_get_notBefore(x), NULL);
+		na = ASN1_UTCTIME_TQDateTime(X509_get_notAfter(x), NULL);
+
+		// extract the subject/issuer strings
+		struct X509_name_st *sn = X509_get_subject_name(x);
+		struct X509_name_st *in = X509_get_issuer_name(x);
+		char buf[1024];
+		X509_NAME_oneline(sn, buf, 1024);
+		v_subject = buf;
+		X509_NAME_oneline(in, buf, 1024);
+		v_issuer = buf;
+
+		// extract the subject/issuer contents
+		cp_subject = nameToProperties(sn);
+		cp_issuer  = nameToProperties(in);
+	}
+
+	TQString serialNumber() const
+	{
+		return serial;
+	}
+
+	TQString subjectString() const
+	{
+		return v_subject;
+	}
+
+	TQString issuerString() const
+	{
+		return v_issuer;
+	}
+
+	TQValueList<TQCA_CertProperty> subject() const
+	{
+		return cp_subject;
+	}
+
+	TQValueList<TQCA_CertProperty> issuer() const
+	{
+		return cp_issuer;
+	}
+
+	TQDateTime notBefore() const
+	{
+		return nb;
+	}
+
+	TQDateTime notAfter() const
+	{
+		return na;
+	}
+
+	bool matchesAddress(const TQString &realHost) const
+	{
+		TQString peerHost = realHost.stripWhiteSpace();
+		while(peerHost.endsWith("."))
+			peerHost.truncate(peerHost.length()-1);
+		peerHost = peerHost.lower();
+
+		TQString cn;
+		for(TQValueList<TQCA_CertProperty>::ConstIterator it = cp_subject.begin(); it != cp_subject.end(); ++it) {
+			if((*it).var == "CN") {
+				cn = (*it).val;
+				break;
+			}
+		}
+		if(cnMatchesAddress(cn, peerHost))
+			return true;
+		return false;
+	}
+
+	X509 *x;
+	TQString serial, v_subject, v_issuer;
+	TQValueList<TQCA_CertProperty> cp_subject, cp_issuer;
+	TQDateTime nb, na;
+};
+
+static bool ssl_init = false;
+class TLSContext : public TQCA_TLSContext
+{
+public:
+	enum { Good, TryAgain, Bad };
+	enum { Idle, Connect, Accept, Handshake, Active, Closing };
+
+	bool serv;
+	int mode;
+	TQByteArray sendQueue, recvQueue;
+
+	CertContext *cert;
+	RSAKeyContext *key;
+
+	SSL *ssl;
+	SSL_METHOD *method;
+	SSL_CTX *context;
+	BIO *rbio, *wbio;
+	CertContext cc;
+	int vr;
+	bool v_eof;
+
+	TLSContext()
+	{
+		if(!ssl_init) {
+			SSL_library_init();
+			SSL_load_error_strings();
+			ssl_init = true;
+		}
+
+		ssl = 0;
+		context = 0;
+		cert = 0;
+		key = 0;
+	}
+
+	~TLSContext()
+	{
+		reset();
+	}
+
+	void reset()
+	{
+		if(ssl) {
+			SSL_free(ssl);
+			ssl = 0;
+		}
+		if(context) {
+			SSL_CTX_free(context);
+			context = 0;
+		}
+		if(cert) {
+			delete cert;
+			cert = 0;
+		}
+		if(key) {
+			delete key;
+			key = 0;
+		}
+
+		sendQueue.resize(0);
+		recvQueue.resize(0);
+		mode = Idle;
+		cc.reset();
+		vr = TQCA::TLS::Unknown;
+		v_eof = false;
+	}
+
+	bool eof() const
+	{
+		return v_eof;
+	}
+
+	bool startClient(const TQPtrList<TQCA_CertContext> &store, const TQCA_CertContext &_cert, const TQCA_RSAKeyContext &_key)
+	{
+		reset();
+		serv = false;
+		method = const_cast<SSL_METHOD*>(SSLv23_client_method());
+
+		if(!setup(store, _cert, _key))
+			return false;
+
+		mode = Connect;
+		return true;
+	}
+
+	bool startServer(const TQPtrList<TQCA_CertContext> &store, const TQCA_CertContext &_cert, const TQCA_RSAKeyContext &_key)
+	{
+		reset();
+		serv = true;
+		method = const_cast<SSL_METHOD*>(SSLv23_server_method());
+
+		if(!setup(store, _cert, _key))
+			return false;
+
+		mode = Accept;
+		return true;
+	}
+
+	bool setup(const TQPtrList<TQCA_CertContext> &list, const TQCA_CertContext &_cc, const TQCA_RSAKeyContext &kc)
+	{
+		context = SSL_CTX_new(method);
+		if(!context) {
+			reset();
+			return false;
+		}
+
+		// load the cert store
+		if(!list.isEmpty()) {
+			X509_STORE *store = SSL_CTX_get_cert_store(context);
+			TQPtrListIterator<TQCA_CertContext> it(list);
+			for(CertContext *i; (i = (CertContext *)it.current()); ++it)
+				X509_STORE_add_cert(store, i->x);
+		}
+
+		ssl = SSL_new(context);
+		if(!ssl) {
+			reset();
+			return false;
+		}
+		SSL_set_ssl_method(ssl, method); // can this return error?
+
+		// setup the memory bio
+		rbio = BIO_new(BIO_s_mem());
+		wbio = BIO_new(BIO_s_mem());
+
+		// this passes control of the bios to ssl.  we don't need to free them.
+		SSL_set_bio(ssl, rbio, wbio);
+
+		// setup the cert to send
+		if(!_cc.isNull() && !kc.isNull()) {
+			cert = static_cast<CertContext*>(_cc.clone());
+			key = static_cast<RSAKeyContext*>(kc.clone());
+			if(SSL_use_certificate(ssl, cert->x) != 1) {
+				reset();
+				return false;
+			}
+			if(SSL_use_RSAPrivateKey(ssl, key->sec) != 1) {
+				reset();
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	int handshake(const TQByteArray &in, TQByteArray *out)
+	{
+		if(!in.isEmpty())
+			BIO_write(rbio, in.data(), in.size());
+
+		if(mode == Connect) {
+			int ret = doConnect();
+			if(ret == Good) {
+				mode = Handshake;
+			}
+			else if(ret == Bad) {
+				reset();
+				return Error;
+			}
+		}
+
+		if(mode == Accept) {
+			int ret = doAccept();
+			if(ret == Good) {
+				getCert();
+				mode = Active;
+			}
+			else if(ret == Bad) {
+				reset();
+				return Error;
+			}
+		}
+
+		if(mode == Handshake) {
+			int ret = doHandshake();
+			if(ret == Good) {
+				getCert();
+				mode = Active;
+			}
+			else if(ret == Bad) {
+				reset();
+				return Error;
+			}
+		}
+
+		// process outgoing
+		*out = readOutgoing();
+
+		if(mode == Active)
+			return Success;
+		else
+			return Continue;
+	}
+
+	int shutdown(const TQByteArray &in, TQByteArray *out)
+	{
+		if(!in.isEmpty())
+			BIO_write(rbio, in.data(), in.size());
+
+		int ret = doShutdown();
+		if(ret == Bad) {
+			reset();
+			return Error;
+		}
+
+		*out = readOutgoing();
+
+		if(ret == Good) {
+			mode = Idle;
+			return Success;
+		}
+		else {
+			mode = Closing;
+			return Continue;
+		}
+	}
+
+	void getCert()
+	{
+		// verify the certificate
+		int code = TQCA::TLS::Unknown;
+		X509 *x = SSL_get_peer_certificate(ssl);
+		if(x) {
+			cc.fromX509(x);
+			X509_free(x);
+			int ret = SSL_get_verify_result(ssl);
+			if(ret == X509_V_OK)
+				code = TQCA::TLS::Valid;
+			else
+				code = resultToCV(ret);
+		}
+		else {
+			cc.reset();
+			code = TQCA::TLS::NoCert;
+		}
+		vr = code;
+	}
+
+	bool encode(const TQByteArray &plain, TQByteArray *to_net, int *enc)
+	{
+		if(mode != Active)
+			return false;
+		appendArray(&sendQueue, plain);
+
+		int encoded = 0;
+		if(sendQueue.size() > 0) {
+			int ret = SSL_write(ssl, sendQueue.data(), sendQueue.size());
+
+			enum { Good, Continue, Done, Error };
+			int m;
+			if(ret <= 0) {
+				int x = SSL_get_error(ssl, ret);
+				if(x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+					m = Continue;
+				else if(x == SSL_ERROR_ZERO_RETURN)
+					m = Done;
+				else
+					m = Error;
+			}
+			else {
+				m = Good;
+				encoded = ret;
+				int newsize = sendQueue.size() - encoded;
+				char *r = sendQueue.data();
+				memmove(r, r + encoded, newsize);
+				sendQueue.resize(newsize);
+			}
+
+			if(m == Done) {
+				sendQueue.resize(0);
+				v_eof = true;
+				return false;
+			}
+			if(m == Error) {
+				sendQueue.resize(0);
+				return false;
+			}
+		}
+
+		*to_net = readOutgoing();
+		*enc = encoded;
+		return true;
+	}
+
+	bool decode(const TQByteArray &from_net, TQByteArray *plain, TQByteArray *to_net)
+	{
+		if(mode != Active)
+			return false;
+		if(!from_net.isEmpty())
+			BIO_write(rbio, from_net.data(), from_net.size());
+
+		TQByteArray a;
+		while(!v_eof) {
+			a.resize(8192);
+			int ret = SSL_read(ssl, a.data(), a.size());
+			if(ret > 0) {
+				if(ret != (int)a.size())
+					a.resize(ret);
+				appendArray(&recvQueue, a);
+			}
+			else if(ret <= 0) {
+				int x = SSL_get_error(ssl, ret);
+				if(x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+					break;
+				else if(x == SSL_ERROR_ZERO_RETURN)
+					v_eof = true;
+				else
+					return false;
+			}
+		}
+
+		*plain = recvQueue.copy();
+		recvQueue.resize(0);
+
+		// could be outgoing data also
+		*to_net = readOutgoing();
+		return true;
+	}
+
+	TQByteArray unprocessed()
+	{
+		TQByteArray a;
+		int size = BIO_pending(rbio);
+		if(size <= 0)
+			return a;
+		a.resize(size);
+
+		int r = BIO_read(rbio, a.data(), size);
+		if(r <= 0) {
+			a.resize(0);
+			return a;
+		}
+		if(r != size)
+			a.resize(r);
+		return a;
+	}
+
+	TQByteArray readOutgoing()
+	{
+		TQByteArray a;
+		int size = BIO_pending(wbio);
+		if(size <= 0)
+			return a;
+		a.resize(size);
+
+		int r = BIO_read(wbio, a.data(), size);
+		if(r <= 0) {
+			a.resize(0);
+			return a;
+		}
+		if(r != size)
+			a.resize(r);
+		return a;
+	}
+
+	int doConnect()
+	{
+		int ret = SSL_connect(ssl);
+		if(ret < 0) {
+			int x = SSL_get_error(ssl, ret);
+			if(x == SSL_ERROR_WANT_CONNECT || x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+				return TryAgain;
+			else
+				return Bad;
+		}
+		else if(ret == 0)
+			return Bad;
+		return Good;
+	}
+
+	int doAccept()
+	{
+		int ret = SSL_accept(ssl);
+		if(ret < 0) {
+			int x = SSL_get_error(ssl, ret);
+			if(x == SSL_ERROR_WANT_CONNECT || x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+				return TryAgain;
+			else
+				return Bad;
+		}
+		else if(ret == 0)
+			return Bad;
+		return Good;
+	}
+
+	int doHandshake()
+	{
+		int ret = SSL_do_handshake(ssl);
+		if(ret < 0) {
+			int x = SSL_get_error(ssl, ret);
+			if(x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+				return TryAgain;
+			else
+				return Bad;
+		}
+		else if(ret == 0)
+			return Bad;
+		return Good;
+	}
+
+	int doShutdown()
+	{
+		int ret = SSL_shutdown(ssl);
+		if(ret >= 1)
+			return Good;
+		else {
+			if(ret == 0)
+				return TryAgain;
+			int x = SSL_get_error(ssl, ret);
+			if(x == SSL_ERROR_WANT_READ || x == SSL_ERROR_WANT_WRITE)
+				return TryAgain;
+			return Bad;
+		}
+	}
+
+	TQCA_CertContext *peerCertificate() const
+	{
+		return cc.clone();
+	}
+
+	int validityResult() const
+	{
+		return vr;
+	}
+
+	int resultToCV(int ret) const
+	{
+		int rc;
+
+		switch(ret) {
+			case X509_V_ERR_CERT_REJECTED:
+				rc = TQCA::TLS::Rejected;
+				break;
+			case X509_V_ERR_CERT_UNTRUSTED:
+				rc = TQCA::TLS::Untrusted;
+				break;
+			case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
+			case X509_V_ERR_CERT_SIGNATURE_FAILURE:
+			case X509_V_ERR_CRL_SIGNATURE_FAILURE:
+			case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
+			case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
+				rc = TQCA::TLS::SignatureFailed;
+				break;
+			case X509_V_ERR_INVALID_CA:
+			case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+			case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
+			case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
+				rc = TQCA::TLS::InvalidCA;
+				break;
+			case X509_V_ERR_INVALID_PURPOSE:
+				rc = TQCA::TLS::InvalidPurpose;
+				break;
+			case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+			case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
+				rc = TQCA::TLS::SelfSigned;
+				break;
+			case X509_V_ERR_CERT_REVOKED:
+				rc = TQCA::TLS::Revoked;
+				break;
+			case X509_V_ERR_PATH_LENGTH_EXCEEDED:
+				rc = TQCA::TLS::PathLengthExceeded;
+				break;
+			case X509_V_ERR_CERT_NOT_YET_VALID:
+			case X509_V_ERR_CERT_HAS_EXPIRED:
+			case X509_V_ERR_CRL_NOT_YET_VALID:
+			case X509_V_ERR_CRL_HAS_EXPIRED:
+			case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+			case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+			case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
+			case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
+				rc = TQCA::TLS::Expired;
+				break;
+			case X509_V_ERR_APPLICATION_VERIFICATION:
+			case X509_V_ERR_OUT_OF_MEM:
+			case X509_V_ERR_UNABLE_TO_GET_CRL:
+			case X509_V_ERR_CERT_CHAIN_TOO_LONG:
+			default:
+				rc = TQCA::TLS::Unknown;
+				break;
+		}
+		return rc;
+	}
+};
+
+class TQCAOpenSSL : public TQCAProvider
+{
+public:
+	TQCAOpenSSL() {}
+	~TQCAOpenSSL() {}
+
+	void init()
+	{
+	}
+
+	int qcaVersion() const
+	{
+		return TQCA_PLUGIN_VERSION;
+	}
+
+	int capabilities() const
+	{
+		int caps =
+			TQCA::CAP_SHA1 |
+			TQCA::CAP_MD5 |
+			TQCA::CAP_BlowFish |
+			TQCA::CAP_TripleDES |
+#ifndef NO_AES
+			TQCA::CAP_AES128 |
+			TQCA::CAP_AES256 |
+#endif
+			TQCA::CAP_RSA |
+			TQCA::CAP_X509 |
+			TQCA::CAP_TLS;
+		return caps;
+	}
+
+	void *context(int cap)
+	{
+		if(cap == TQCA::CAP_SHA1)
+			return new SHA1Context;
+		else if(cap == TQCA::CAP_MD5)
+			return new MD5Context;
+		else if(cap == TQCA::CAP_BlowFish)
+			return new BlowFishContext;
+		else if(cap == TQCA::CAP_TripleDES)
+			return new TripleDESContext;
+#ifndef NO_AES
+		else if(cap == TQCA::CAP_AES128)
+			return new AES128Context;
+		else if(cap == TQCA::CAP_AES256)
+			return new AES256Context;
+#endif
+		else if(cap == TQCA::CAP_RSA)
+			return new RSAKeyContext;
+		else if(cap == TQCA::CAP_X509)
+			return new CertContext;
+		else if(cap == TQCA::CAP_TLS)
+			return new TLSContext;
+		return 0;
+	}
+};
+
+#ifdef TQCA_PLUGIN
+TQCAProvider *createProvider()
+#else
+TQCAProvider *createProviderTLS()
+#endif
+{
+	return (new TQCAOpenSSL);
+}
diff --git a/src/tls/tqca-tls.h b/src/tls/tqca-tls.h
new file mode 100644
index 0000000..d8412f0
--- /dev/null
+++ b/src/tls/tqca-tls.h
@@ -0,0 +1,35 @@
+/*
+ * qca-tls.h - TLS plugin for TQCA
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef TQCA_TLS_H
+#define TQCA_TLS_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "../tqcaprovider.h"
+
+#ifdef TQCA_PLUGIN
+TQCA_PLUGIN_EXPORT TQCAProvider *createProvider();
+#else
+TQCAProvider *createProviderTLS();
+#endif
+#endif