SN-1638 已核对来源，附原文与上下文。
Red，谢谢你先私下告诉我！请发出来吧（也替大家解除悬念！）
Red, thanks for telling me privately first! Please go ahead and post it (and relieve the suspense for everyone!)
他的观点是：支付到比特币地址的交易，其安全性只取决于哈希函数。为了让比特币地址简短，它是公钥的哈希，而非公钥本身。攻击者只需要破解哈希函数，不需要破解 ECDSA。
His point is that transactions paid to a Bitcoin Address are only as secure as the hash function. To make Bitcoin Addresses short, they are a hash of the public key, not the public key itself. An attacker would only have to break the hash function, not ECDSA.
