diff --git a/docs/manual/mod/mod_ssl.html.en b/docs/manual/mod/mod_ssl.html.en
index 98540cd..4580f1c 100644
--- a/docs/manual/mod/mod_ssl.html.en
+++ b/docs/manual/mod/mod_ssl.html.en
@@ -197,6 +197,12 @@ the <code class="directive"><a href="#ssloptions">SSLOptions</a></code> directiv
 first (or only) attribute of any DN is added only under a non-suffixed
 name; i.e. no <code>_0</code> suffixed entries are added.</p>
 
+<p>The <em>_RAW</em> suffix may now be added to mod_ssl DN variable names
+(such as SSL_CLIENT_I_O_RAW). When this suffix is used, conversion
+of certificate name attributes to UTF-8 is omitted. This allows variable
+lookups and comparisons for certificates with incorrectly tagged name
+attributes.</p>
+
 <p>The format of the <em>*_DN</em> variables has changed in Apache HTTPD
 2.3.11. See the <code>LegacyDNStringFormat</code> option for
 <code class="directive"><a href="#ssloptions">SSLOptions</a></code> for details.</p>
@@ -861,7 +867,7 @@ SSLEngine on
 &lt;/VirtualHost&gt;
 </pre>
 </div>
-<p>In Apache 2.1 and later, <code class="directive">SSLEngine</code> can be set to
+<p>In httpd 2.2.0 and later, <code class="directive">SSLEngine</code> can be set to
 <code>optional</code>. This enables support for
 <a href="http://www.ietf.org/rfc/rfc2817.txt">RFC 2817</a>, Upgrading to TLS
 Within HTTP/1.1. At this time no web browsers support RFC 2817.</p>
diff --git a/modules/ssl/ssl_engine_vars.c b/modules/ssl/ssl_engine_vars.c
index 2b7c9ba..e25a6d4 100644
--- a/modules/ssl/ssl_engine_vars.c
+++ b/modules/ssl/ssl_engine_vars.c
@@ -41,7 +41,7 @@
 
 static char *ssl_var_lookup_ssl(apr_pool_t *p, conn_rec *c, request_rec *r, char *var);
 static char *ssl_var_lookup_ssl_cert(apr_pool_t *p, request_rec *r, X509 *xs, char *var);
-static char *ssl_var_lookup_ssl_cert_dn(apr_pool_t *p, X509_NAME *xsname, char *var);
+static char *ssl_var_lookup_ssl_cert_dn(apr_pool_t *p, X509_NAME *xsname, const char *var);
 static char *ssl_var_lookup_ssl_cert_san(apr_pool_t *p, X509 *xs, char *var);
 static char *ssl_var_lookup_ssl_cert_valid(apr_pool_t *p, ASN1_TIME *tm);
 static char *ssl_var_lookup_ssl_cert_remain(apr_pool_t *p, ASN1_TIME *tm);
@@ -562,15 +562,23 @@ static const struct {
     { NULL,    0,                          0 }
 };
 
-static char *ssl_var_lookup_ssl_cert_dn(apr_pool_t *p, X509_NAME *xsname, char *var)
+static char *ssl_var_lookup_ssl_cert_dn(apr_pool_t *p, X509_NAME *xsname,
+                                        const char *var)
 {
-    char *result, *ptr;
+    const char *ptr;
+    char *result;
     X509_NAME_ENTRY *xsne;
-    int i, j, n, idx = 0;
+    int i, j, n, idx = 0, raw = 0;
     apr_size_t varlen;
 
+    ptr = ap_strrchr_c(var, '_');
+    if (ptr && ptr > var && strcmp(ptr + 1, "RAW") == 0) {
+        var = apr_pstrmemdup(p, var, ptr - var);
+        raw = 1;
+    }
+
     /* if an _N suffix is used, find the Nth attribute of given name */
-    ptr = strchr(var, '_');
+    ptr = ap_strchr_c(var, '_');
     if (ptr != NULL && strspn(ptr + 1, "0123456789") == strlen(ptr + 1)) {
         idx = atoi(ptr + 1);
         varlen = ptr - var;
@@ -592,7 +600,7 @@ static char *ssl_var_lookup_ssl_cert_dn(apr_pool_t *p, X509_NAME *xsname, char *
                 n =OBJ_obj2nid((ASN1_OBJECT *)X509_NAME_ENTRY_get_object(xsne));
 
                 if (n == ssl_var_lookup_ssl_cert_dn_rec[i].nid && idx-- == 0) {
-                    result = SSL_X509_NAME_ENTRY_to_string(p, xsne);
+                    result = SSL_X509_NAME_ENTRY_to_string(p, xsne, raw);
                     break;
                 }
             }
@@ -897,7 +905,7 @@ static void extract_dn(apr_table_t *t, apr_hash_t *nids, const char *pfx,
                  apr_hash_set(count, &nid, sizeof nid, dup);
                  key = apr_pstrcat(p, pfx, tag, NULL);
              }
-             value = SSL_X509_NAME_ENTRY_to_string(p, xsne);
+             value = SSL_X509_NAME_ENTRY_to_string(p, xsne, 0);
              apr_table_setn(t, key, value);
          }
     }
diff --git a/modules/ssl/ssl_util_ssl.c b/modules/ssl/ssl_util_ssl.c
index 09a9877..fbd701f 100644
--- a/modules/ssl/ssl_util_ssl.c
+++ b/modules/ssl/ssl_util_ssl.c
@@ -236,18 +236,21 @@ BOOL SSL_X509_getBC(X509 *cert, int *ca, int *pathlen)
     return TRUE;
 }
 
-/* convert an ASN.1 string to a UTF-8 string (escaping control characters) */
-char *SSL_ASN1_STRING_to_utf8(apr_pool_t *p, ASN1_STRING *asn1str)
+/* Convert ASN.1 string to a pool-allocated char * string, escaping
+ * control characters.  If raw is zero, convert to UTF-8, otherwise
+ * unchanged from the character set. */
+char *SSL_ASN1_STRING_convert(apr_pool_t *p, ASN1_STRING *asn1str, int raw)
 {
     char *result = NULL;
     BIO *bio;
-    int len;
+    int len, flags = ASN1_STRFLGS_ESC_CTRL;
 
     if ((bio = BIO_new(BIO_s_mem())) == NULL)
         return NULL;
 
-    ASN1_STRING_print_ex(bio, asn1str, ASN1_STRFLGS_ESC_CTRL|
-                                       ASN1_STRFLGS_UTF8_CONVERT);
+    if (!raw) flags |= ASN1_STRFLGS_UTF8_CONVERT;
+
+    ASN1_STRING_print_ex(bio, asn1str, flags);
     len = BIO_pending(bio);
     if (len > 0) {
         result = apr_palloc(p, len+1);
@@ -258,10 +261,13 @@ char *SSL_ASN1_STRING_to_utf8(apr_pool_t *p, ASN1_STRING *asn1str)
     return result;
 }
 
+#define SSL_ASN1_STRING_to_utf8(p, a) SSL_ASN1_STRING_convert(p, a, 0)
+
 /* convert a NAME_ENTRY to UTF8 string */
-char *SSL_X509_NAME_ENTRY_to_string(apr_pool_t *p, X509_NAME_ENTRY *xsne)
+char *SSL_X509_NAME_ENTRY_to_string(apr_pool_t *p, X509_NAME_ENTRY *xsne,
+                                    int raw) 
 {
-    char *result = SSL_ASN1_STRING_to_utf8(p, X509_NAME_ENTRY_get_data(xsne));
+    char *result = SSL_ASN1_STRING_convert(p, X509_NAME_ENTRY_get_data(xsne), raw);
     ap_xlate_proto_from_ascii(result, len);
     return result;
 }
@@ -414,7 +420,7 @@ BOOL SSL_X509_getIDs(apr_pool_t *p, X509 *x509, apr_array_header_t **ids)
     subj = X509_get_subject_name(x509);
     while ((i = X509_NAME_get_index_by_NID(subj, NID_commonName, i)) != -1) {
         APR_ARRAY_PUSH(*ids, const char *) = 
-            SSL_X509_NAME_ENTRY_to_string(p, X509_NAME_get_entry(subj, i));
+            SSL_X509_NAME_ENTRY_to_string(p, X509_NAME_get_entry(subj, i), 0);
     }
 
     return apr_is_empty_array(*ids) ? FALSE : TRUE;
diff --git a/modules/ssl/ssl_util_ssl.h b/modules/ssl/ssl_util_ssl.h
index be07ab7..611957e 100644
--- a/modules/ssl/ssl_util_ssl.h
+++ b/modules/ssl/ssl_util_ssl.h
@@ -65,8 +65,8 @@ EVP_PKEY   *SSL_read_PrivateKey(char *, EVP_PKEY **, pem_password_cb *, void *);
 int         SSL_smart_shutdown(SSL *ssl);
 BOOL        SSL_X509_isSGC(X509 *);
 BOOL        SSL_X509_getBC(X509 *, int *, int *);
-char       *SSL_ASN1_STRING_to_utf8(apr_pool_t *, ASN1_STRING *);
-char       *SSL_X509_NAME_ENTRY_to_string(apr_pool_t *p, X509_NAME_ENTRY *xsne);
+char       *SSL_ASN1_STRING_to_utf8(apr_pool_t *, ASN1_STRING *, int raw);
+char       *SSL_X509_NAME_ENTRY_to_string(apr_pool_t *p, X509_NAME_ENTRY *xsne, int raw);
 char       *SSL_X509_NAME_to_string(apr_pool_t *, X509_NAME *, int);
 BOOL        SSL_X509_getSAN(apr_pool_t *, X509 *, int, const char *, int, apr_array_header_t **);
 BOOL        SSL_X509_getIDs(apr_pool_t *, X509 *, apr_array_header_t **);