Bug fixes in hash algorithm, parameters, and time lock support

src/crypto/verus_hash.h

@@ -46,7 +46,8 @@ class CVerusHash
         }
 
     private:
-        unsigned char buf1[64], buf2[64];
+        // only buf1, the first source, needs to be zero initialized
+        unsigned char buf1[64] = {0}, buf2[64];
         unsigned char *curBuf = buf1, *result = buf2;
         size_t curPos = 0;
 };