diff --git a/qse/Makefile.in b/qse/Makefile.in
index a4379b48..bddee473 100644
--- a/qse/Makefile.in
+++ b/qse/Makefile.in
@@ -165,7 +165,7 @@ am__DIST_COMMON = $(srcdir)/Makefile.in $(top_srcdir)/ac/ar-lib \
 	$(top_srcdir)/ac/compile $(top_srcdir)/ac/config.guess \
 	$(top_srcdir)/ac/config.sub $(top_srcdir)/ac/install-sh \
 	$(top_srcdir)/ac/ltmain.sh $(top_srcdir)/ac/missing README \
-	ac/ar-lib ac/compile ac/config.guess ac/config.sub \
+	ac/ar-lib ac/compile ac/config.guess ac/config.sub ac/depcomp \
 	ac/install-sh ac/ltmain.sh ac/missing
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
diff --git a/qse/configure b/qse/configure
index c9170f1d..56810392 100755
--- a/qse/configure
+++ b/qse/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for qse 0.8.2.
+# Generated by GNU Autoconf 2.69 for qse 0.8.3.
 #
 # Report bugs to <Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='qse'
 PACKAGE_TARNAME='qse'
-PACKAGE_VERSION='0.8.2'
-PACKAGE_STRING='qse 0.8.2'
+PACKAGE_VERSION='0.8.3'
+PACKAGE_STRING='qse 0.8.3'
 PACKAGE_BUGREPORT='Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)'
 PACKAGE_URL='http://code.miflux.com/@qse'
 
@@ -1414,7 +1414,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures qse 0.8.2 to adapt to many kinds of systems.
+\`configure' configures qse 0.8.3 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1484,7 +1484,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of qse 0.8.2:";;
+     short | recursive ) echo "Configuration of qse 0.8.3:";;
    esac
   cat <<\_ACEOF
 
@@ -1629,7 +1629,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-qse configure 0.8.2
+qse configure 0.8.3
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2413,7 +2413,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by qse $as_me 0.8.2, which was
+It was created by qse $as_me 0.8.3, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -3288,7 +3288,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='qse'
- VERSION='0.8.2'
+ VERSION='0.8.3'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -24323,7 +24323,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by qse $as_me 0.8.2, which was
+This file was extended by qse $as_me 0.8.3, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -24390,7 +24390,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-qse config.status 0.8.2
+qse config.status 0.8.3
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/qse/configure.ac b/qse/configure.ac
index 0053a7fa..4b8ceef3 100644
--- a/qse/configure.ac
+++ b/qse/configure.ac
@@ -4,7 +4,7 @@ dnl Make sure you change the version information
 dnl in include/qse/conf_*.h whenever you change the version 
 dnl here. Those files don't depend on autoconf, thus requiring
 dnl manual change.
-AC_INIT([qse],[0.8.2],[Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)],[],[http://code.miflux.com/@qse])
+AC_INIT([qse],[0.8.3],[Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)],[],[http://code.miflux.com/@qse])
 
 AC_CONFIG_HEADER([include/qse/config.h])
 AC_CONFIG_AUX_DIR([ac])
diff --git a/qse/include/qse/cry/hmac.h b/qse/include/qse/cry/hmac.h
index 7bafc2d4..d3847785 100644
--- a/qse/include/qse/cry/hmac.h
+++ b/qse/include/qse/cry/hmac.h
@@ -105,7 +105,7 @@ qse_size_t qse_get_hmac_block_size (
  * prefixed with hmac followed by the pair values encoded in hexdecimal
  * digits seperated by a dash 
  */
-qse_mchar_t* qse_encode_hmacstr (
+qse_mchar_t* qse_encode_hmacmbs (
 	qse_hmac_sha_type_t sha_type,
 	const qse_uint8_t*  keyptr,
 	qse_size_t          keylen,
@@ -114,16 +114,43 @@ qse_mchar_t* qse_encode_hmacstr (
 	qse_mmgr_t*         mmgr
 );
 
-qse_xptl_t* qse_decode_hmacstr (
+qse_xptl_t* qse_decode_hmacmbs (
 	qse_hmac_sha_type_t sha_type,
 	const qse_uint8_t*  keyptr,
 	qse_size_t          keylen,
-	const qse_mchar_t*  hmacstr,
+	const qse_mchar_t*  hmacmbs,
 	qse_size_t*         count,
 	qse_mmgr_t*         mmgr
 );
 
 
+qse_wchar_t* qse_encode_hmacwcs (
+	qse_hmac_sha_type_t sha_type,
+	const qse_uint8_t*  keyptr,
+	qse_size_t          keylen,
+	qse_xptl_t*         data,
+	qse_size_t          count,
+	qse_mmgr_t*         mmgr
+);
+
+qse_xptl_t* qse_decode_hmacwcs (
+	qse_hmac_sha_type_t sha_type,
+	const qse_uint8_t*  keyptr,
+	qse_size_t          keylen,
+	const qse_wchar_t*  hmacwcs,
+	qse_size_t*         count,
+	qse_mmgr_t*         mmgr
+);
+
+
+#if defined(QSE_CHAR_IS_MCHAR)
+#	define qse_encode_hmacstr qse_encode_hmacmbs
+#	define qse_decode_hmacstr qse_decode_hmacmbs
+#else
+#	define qse_encode_hmacstr qse_encode_hmacwcs
+#	define qse_decode_hmacstr qse_decode_hmacwcs
+#endif
+
 #if defined(__cplusplus)
 }
 #endif
diff --git a/qse/include/qse/si/Mutex.hpp b/qse/include/qse/si/Mutex.hpp
index 969c46dc..8602312a 100644
--- a/qse/include/qse/si/Mutex.hpp
+++ b/qse/include/qse/si/Mutex.hpp
@@ -29,6 +29,7 @@
 
 #include <qse/Types.hpp>
 #include <qse/Uncopyable.hpp>
+#include <qse/cmn/Mmgr.hpp>
 #include <qse/si/mtx.h>
 
 QSE_BEGIN_NAMESPACE(QSE)
diff --git a/qse/lib/cry/hmac.c b/qse/lib/cry/hmac.c
index 68fa8488..4fe1867c 100644
--- a/qse/lib/cry/hmac.c
+++ b/qse/lib/cry/hmac.c
@@ -245,8 +245,9 @@ qse_size_t qse_hmac_digest (qse_hmac_t* ctx, qse_uint8_t* digest, qse_size_t siz
 }
 
 
+/* ------------------------------------------------------------------------ */
 
-qse_mchar_t* qse_encode_hmacstr (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, qse_xptl_t* data, qse_size_t count, qse_mmgr_t* mmgr)
+qse_mchar_t* qse_encode_hmacmbs (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, qse_xptl_t* data, qse_size_t count, qse_mmgr_t* mmgr)
 {
 	qse_size_t reqsize = 0, i , j;
 	qse_mchar_t* buf, * ptr;
@@ -277,13 +278,14 @@ qse_mchar_t* qse_encode_hmacstr (qse_hmac_sha_type_t sha_type, const qse_uint8_t
 	qse_hmac_digest (&hmac, digest, digest_len);
 
 	ptr = buf;
-	for (i = 0; i < digest_len; i++) ptr += qse_mbsfmt(ptr, ("%02x"), digest[i]);
+	for (i = 0; i < digest_len; i++) ptr += qse_mbsfmt(ptr, QSE_MT("%02x"), digest[i]);
 	*ptr = '-';
 
 	return buf;
 }
 
-qse_xptl_t* qse_decode_hmacstr (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, const qse_mchar_t* hmacstr, qse_size_t* count, qse_mmgr_t* mmgr)
+
+qse_xptl_t* qse_decode_hmacmbs (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, const qse_mchar_t* hmacstr, qse_size_t* count, qse_mmgr_t* mmgr)
 {
 	qse_uint8_t digest[QSE_HMAC_MAX_DIGEST_LEN];
 	qse_uint8_t orgdig[QSE_HMAC_MAX_DIGEST_LEN];
@@ -352,3 +354,114 @@ qse_xptl_t* qse_decode_hmacstr (qse_hmac_sha_type_t sha_type, const qse_uint8_t*
 	*count = segcount;
 	return (qse_xptl_t*)data;
 }
+
+/* ------------------------------------------------------------------------ */
+
+
+qse_wchar_t* qse_encode_hmacwcs (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, qse_xptl_t* data, qse_size_t count, qse_mmgr_t* mmgr)
+{
+	qse_size_t reqsize = 0, i , j;
+	qse_wchar_t* buf, * ptr;
+	qse_xptl_t* dptr;
+	qse_hmac_t hmac;
+	qse_uint8_t digest[QSE_HMAC_MAX_DIGEST_LEN];
+	qse_size_t digest_len = sha_digest_size(sha_type);
+
+	for (i = 0, dptr = data; i < count; i++, dptr++) reqsize += 1 + (dptr->len * 2);
+	reqsize += digest_len * 2 + 1;
+
+	buf = (qse_wchar_t*)QSE_MMGR_ALLOC(mmgr, reqsize * QSE_SIZEOF(*buf));
+	if (!buf) return QSE_NULL;
+
+	ptr = &buf[digest_len * 2 + 1];
+	for (i = 0, dptr = data; i < count; i++, dptr++)
+	{
+		for (j = 0; j < dptr->len; j++) 
+		{
+			ptr += qse_wcsfmt(ptr, QSE_WT("%02x"), *((qse_uint8_t*)dptr->ptr + j));
+		}
+		if (i < count - 1) *ptr++ = QSE_WT('-');
+	}
+	*ptr = '\0';
+
+	qse_hmac_initialize (&hmac, sha_type, keyptr, keylen);
+	qse_hmac_update (&hmac, (const qse_uint8_t*)&buf[digest_len * 2 + 1], ptr - &buf[digest_len * 2 + 1]);
+	qse_hmac_digest (&hmac, digest, digest_len);
+
+	ptr = buf;
+	for (i = 0; i < digest_len; i++) ptr += qse_wcsfmt(ptr, QSE_WT("%02x"), digest[i]);
+	*ptr = '-';
+
+	return buf;
+}
+
+
+qse_xptl_t* qse_decode_hmacwcs (qse_hmac_sha_type_t sha_type, const qse_uint8_t* keyptr, qse_size_t keylen, const qse_wchar_t* hmacstr, qse_size_t* count, qse_mmgr_t* mmgr)
+{
+	qse_uint8_t digest[QSE_HMAC_MAX_DIGEST_LEN];
+	qse_uint8_t orgdig[QSE_HMAC_MAX_DIGEST_LEN];
+	qse_size_t digest_len = sha_digest_size(sha_type);
+	const qse_wchar_t* ptr, * segptr, * segstart;
+	qse_size_t seglen, reqlen = 0, segcount = 0, i;
+	qse_uint8_t* data, * uptr;
+	qse_xptl_t* xptl;
+	qse_hmac_t hmac;
+
+	for (ptr = hmacstr, i = 0; *ptr != QSE_WT('\0') && *ptr != QSE_WT('-'); ptr += 2, i++)
+	{
+		if (!QSE_ISWXDIGIT(ptr[0]) || !QSE_ISWXDIGIT(ptr[1])) return QSE_NULL;
+		if (i >= digest_len) return QSE_NULL; /* digest too long */
+		orgdig[i] = QSE_WXDIGITTONUM(ptr[0]) * 16 + QSE_WXDIGITTONUM(ptr[1]);
+	}
+
+	if (*ptr == QSE_WT('\0')) return QSE_NULL; /* no dash found after digest */
+	if (i != digest_len) return QSE_NULL; /* digest too short */
+	ptr++;
+	qse_hmac_initialize (&hmac, sha_type, keyptr, keylen);
+	qse_hmac_update (&hmac, (const qse_uint8_t*)ptr, qse_wcslen(ptr));
+	qse_hmac_digest (&hmac, digest, digest_len);
+
+	if (QSE_MEMCMP(digest, orgdig, digest_len) != 0) return QSE_NULL; /* wrong hmac */
+
+	segstart = ptr;
+	while (1)
+	{
+		segptr = ptr;
+
+		for (ptr = segptr; *ptr != QSE_WT('\0') && *ptr != QSE_WT('-'); ptr++) ;
+		seglen = ptr - segptr;
+
+		if (seglen & 1) return QSE_NULL; /* odd-length segment */
+
+		reqlen += (seglen >> 1) + QSE_SIZEOF(*xptl);
+		segcount++;
+
+		if (*ptr == QSE_WT('\0')) break;
+		ptr++;
+	}
+
+	data = (qse_uint8_t*)QSE_MMGR_ALLOC(mmgr, reqlen);
+	if (!data) return QSE_NULL;
+
+	ptr = segstart;
+	xptl = (qse_xptl_t*)data;
+	uptr = data + (segcount * QSE_SIZEOF(*xptl)); 
+	while (1)
+	{
+		segptr = ptr;
+
+		xptl->ptr = uptr;
+		for (ptr = segptr, i = 0; *ptr != QSE_WT('\0') && *ptr != QSE_WT('-'); ptr += 2, i++)
+		{
+			*uptr++ = QSE_WXDIGITTONUM(ptr[0]) * 16 + QSE_WXDIGITTONUM(ptr[1]);
+		}
+		xptl->len = i;
+		xptl++;
+
+		if (*ptr == QSE_WT('\0')) break;
+		ptr++;
+	}
+
+	*count = segcount;
+	return (qse_xptl_t*)data;
+}