SN-2520 已核对来源，附原文与上下文。
VIA C7 的硬件 SHA-256 公布的性能数字并不惊人。只有 1500 khash/s 左右。想想就知道，用硬件实现并不意味着快得离谱。每一步还是得做。只有当把它简化成单一用途硬件后小到可以大量并行摆放，才会有飞跃。这未必容易，也不是理所当然。
The performance numbers posted from a VIA C7's hardware SHA-256 weren't astronomical. Only in the 1500 khash/s range. If you think about it, just because it's implemented in hardware doesn't mean it's crazy fast. It still has to do all the steps. It's only if simplifying it down to single-purpose hardware makes it small enough to fit many in parallel. That's not necessarily easy or a given.
