diff --git a/lib/softoken/lowpbe.c b/lib/softoken/lowpbe.c

--- a/lib/softoken/lowpbe.c

+++ b/lib/softoken/lowpbe.c

@@ -565,17 +565,17 @@ struct KDFCacheItemStr {

     int iterations;

     int keyLen;

 };

 typedef struct KDFCacheItemStr KDFCacheItem;

 /* Bug 1606992 - Cache the hash result for the common case that we're

  * asked to repeatedly compute the key for the same password item,

  * hash, iterations and salt. */

-#define KDF2_CACHE_COUNT 3

+#define KDF2_CACHE_COUNT 150

 static struct {

     PZLock *lock;

     struct {

         KDFCacheItem common;

         int ivLen;

         PRBool faulty3DES;

     } cacheKDF1;

     struct {