diff --git a/bindings/java/lang.py b/bindings/java/lang.py
index 904aff78..47d5a3b5 100644
--- a/bindings/java/lang.py
+++ b/bindings/java/lang.py
@@ -364,7 +364,7 @@ protected static native void destroy(long cptr);
             elif c[0] == 's':
                 print >>fd, wrapper_decl(s,'jstring')
                 print >>fd, ') {'
-                print >>fd, '   return (*env)->NewStringUTF(env, %s);' % c[1]
+                print >>fd, '   return (*env)->NewStringUTF(env, (char*) %s);' % c[1]
                 print >>fd, '}'
             elif c[0] == 'b':
                 print >>fd, wrapper_decl(s,'jboolean')
diff --git a/bindings/perl/lang.py b/bindings/perl/lang.py
index 0d3e4f8b..7390ecb4 100644
--- a/bindings/perl/lang.py
+++ b/bindings/perl/lang.py
@@ -223,7 +223,7 @@ INCLUDE: LassoNode.xs
                 if type == 'i':
                     self.xs.pn('ct = newSViv(%s);' % name)
                 elif type == 's':
-                    self.xs.pn('ct = newSVpv(%s, 0);' % name)
+                    self.xs.pn('ct = newSVpv((char*)%s, 0);' % name)
                 elif type == 'b': # only one case LASSO_WSF_ENABLED
                     self.xs.unindent()
                     self.xs.pn('''#ifdef %s
diff --git a/bindings/php5/wrapper_source.py b/bindings/php5/wrapper_source.py
index 9b2698f2..7148fd9c 100644
--- a/bindings/php5/wrapper_source.py
+++ b/bindings/php5/wrapper_source.py
@@ -76,7 +76,7 @@ PHP_MINIT_FUNCTION(lasso)
             if c[0] == 'i':
                 print >> self.fd, '    REGISTER_LONG_CONSTANT("%s", %s, CONST_CS|CONST_PERSISTENT);' % (c[1], c[1])
             elif c[0] == 's':
-                print >> self.fd, '    REGISTER_STRING_CONSTANT("%s", %s, CONST_CS|CONST_PERSISTENT);' % (c[1], c[1])
+                print >> self.fd, '    REGISTER_STRING_CONSTANT("%s", (char*) %s, CONST_CS|CONST_PERSISTENT);' % (c[1], c[1])
             elif c[0] == 'b':
                 print >> self.fd, '''\
 #ifdef %s
diff --git a/bindings/python/lang.py b/bindings/python/lang.py
index ab987266..8be92e39 100644
--- a/bindings/python/lang.py
+++ b/bindings/python/lang.py
@@ -692,7 +692,7 @@ register_constants(PyObject *d)
             if c[0] == 'i':
                 print >> fd, '    obj = PyInt_FromLong(%s);' % c[1]
             elif c[0] == 's':
-                print >> fd, '    obj = PyString_FromString(%s);' % c[1]
+                print >> fd, '    obj = PyString_FromString((char*)%s);' % c[1]
             elif c[0] == 'b':
                 print >> fd, '''\
 #ifdef %s
diff --git a/lasso/xml/strings.h b/lasso/xml/strings.h
index 9638e9c1..097eac7d 100644
--- a/lasso/xml/strings.h
+++ b/lasso/xml/strings.h
@@ -131,6 +131,41 @@
  */
 #define LASSO_PYTHON_HREF "http://www.entrouvert.org/namespaces/python/0.0"
 
+/**
+ * LASSO_SIGNATURE_TYPE_ATTRIBUTE:
+ *
+ * Attribute name for the Lasso signature type attribute.
+ */
+#define LASSO_SIGNATURE_TYPE_ATTRIBUTE BAD_CAST "SignatureType"
+
+/**
+ * LASSO_SIGNATURE_METHOD_ATTRIBUTE:
+ *
+ * Attribute name for the Lasso signature type attribute.
+ */
+#define LASSO_SIGNATURE_METHOD_ATTRIBUTE BAD_CAST "SignatureMethod"
+
+/**
+ * LASSO_PRIVATE_KEY_ATTRIBUTE:
+ *
+ * Attribute name for the Lasso private key attribute.
+ */
+#define LASSO_PRIVATE_KEY_ATTRIBUTE BAD_CAST "PrivateKey"
+
+/**
+ * LASSO_PRIVATE_KEY_PASSWORD_ATTRIBUTE:
+ *
+ * Attribute name for the Lasso private key attribute.
+ */
+#define LASSO_PRIVATE_KEY_PASSWORD_ATTRIBUTE BAD_CAST "PrivateKeyPassword"
+
+/**
+ * LASSO_CERTIFICATE_ATTRIBUTE:
+ *
+ * Attribute name for the Lasso private key attribute.
+ */
+#define LASSO_CERTIFICATE_ATTRIBUTE BAD_CAST "Certificate"
+
 /*****************************************************************************/
 /* Liberty Alliance ID-FF                                                    */
 /*****************************************************************************/