lac_sym_hash_precomp_op_data_t
((sizeof(lac_sym_hash_precomp_op_data_t) * 2) + \
lac_sym_hash_precomp_op_data_t *pHmacIpadOpData =
(lac_sym_hash_precomp_op_data_t *)pWorkingMemory;
lac_sym_hash_precomp_op_data_t *pHmacOpadOpData = pHmacIpadOpData + 1;