diff --git a/lib/cryptohi/sechash.c b/lib/cryptohi/sechash.c
index b12621100a..53d8bc0aeb 100644
--- a/lib/cryptohi/sechash.c
+++ b/lib/cryptohi/sechash.c
@@ -202,13 +202,45 @@ HASH_GetHashTypeByOidTag(SECOidTag hashOid)
             ht = HASH_AlgSHA512;
             break;
         default:
-            ht = HASH_AlgNULL;
             PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
             break;
     }
     return ht;
 }
 
+HASH_GetHashOidTagByHashType(HASH_HashType type)
+{
+    SECOidTag oid = SEC_OID_UNKNOWN;
+
+    switch (type) {
+        case HASH_AlgMD2:
+            oid = SEC_OID_MD2;
+            break;
+        case HASH_AlgMD5:
+            oid = SEC_OID_MD5;
+            break;
+        case HASH_AlgSHA1:
+            oid = SEC_OID_SHA1;
+            break;
+        case HASH_AlgSHA224:
+            oid = SEC_OID_SHA224;
+            break;
+        case HASH_AlgSHA256:
+            oid = SEC_OID_SHA256;
+            break;
+        case HASH_AlgSHA384:
+            oid = SEC_OID_SHA384;
+            break;
+        case HASH_AlgSHA512:
+            oid = SEC_OID_SHA512;
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return oid;
+}
+
 SECOidTag
 HASH_GetHashOidTagByHMACOidTag(SECOidTag hmacOid)
 {
diff --git a/lib/cryptohi/sechash.h b/lib/cryptohi/sechash.h
index 94ff7ed3d0..16e8b67133 100644
--- a/lib/cryptohi/sechash.h
+++ b/lib/cryptohi/sechash.h
@@ -53,6 +53,8 @@ extern HASH_HashType HASH_GetHashTypeByOidTag(SECOidTag hashOid);
 extern SECOidTag HASH_GetHashOidTagByHMACOidTag(SECOidTag hmacOid);
 extern SECOidTag HASH_GetHMACOidTagByHashOidTag(SECOidTag hashOid);
 
+extern SECOidTag HASH_GetHashOidTagByHashType(HASH_HashType type);
+
 SEC_END_PROTOS
 
 #endif /* _HASH_H_ */
diff --git a/lib/nss/nss.def b/lib/nss/nss.def
index 8a9b3b030c..d589fd30e2 100644
--- a/lib/nss/nss.def
+++ b/lib/nss/nss.def
@@ -1139,3 +1139,9 @@ CERT_GetCertKeyType;
 ;+    local:
 ;+       *;
 ;+};
+;+NSS_3.43 { 	# NSS 3.43 release
+;+    global:
+HASH_GetHashOidTagByHashType;
+;+    local:
+;+       *;
+;+};