diff --git a/phpseclib/File/ASN1.php b/phpseclib/File/ASN1.php
index 56bf8787..f5a752c1 100644
--- a/phpseclib/File/ASN1.php
+++ b/phpseclib/File/ASN1.php
@@ -438,14 +438,15 @@ class File_ASN1 {
      */
     function asn1map($decoded, $mapping, $idx = NULL)
     {
+        if (isset($mapping['explicit'])) {
+            $decoded = $decoded['content'][0];
+        }
+
         switch (true) {
             case $mapping['type'] == FILE_ASN1_TYPE_CHOICE:
                 foreach ($mapping['children'] as $key => $option) {
                     switch (true) {
                         case isset($option['constant']) && $option['constant'] == $decoded['constant']:
-                            // $decoded['content'] is only an array if the type is constructed
-                            $value = is_array($decoded['content']) ? $this->asn1map($decoded['content'][0], $option) : $this->asn1map($decoded, $option);
-                            break;
                         case !isset($option['constant']) && $option['type'] == $decoded['type']:
                             $value = $this->asn1map($decoded, $option);
                     }
@@ -463,10 +464,6 @@ class File_ASN1 {
                 return NULL;
         }
 
-        if (isset($mapping['explicit'])) {
-            $decoded = $decoded['content'][0];
-        }
-
         if (isset($mapping['implicit'])) {
             $decoded['type'] = $mapping['type'];
         }
@@ -1131,4 +1128,3 @@ class File_ASN1 {
         return $substr;
     }
 }
-
diff --git a/phpseclib/File/X509.php b/phpseclib/File/X509.php
index 12a079fa..57674516 100644
--- a/phpseclib/File/X509.php
+++ b/phpseclib/File/X509.php
@@ -660,7 +660,7 @@ class File_X509 {
                 'directoryName'             => array(
                                                  'constant' => 4,
                                                  'optional' => true,
-                                                 'implicit' => true
+                                                 'explicit' => true
                                                ) + $Name,
                 'ediPartyName'              => array(
                                                  'constant' => 5,
@@ -734,7 +734,7 @@ class File_X509 {
                 'distributionPoint' => array(
                                                  'constant' => 0,
                                                  'optional' => true,
-                                                 'implicit' => true
+                                                 'explicit' => true
                                        ) + $DistributionPointName,
                 'reasons'           => array(
                                                  'constant' => 1,