We can modify our ZK credential to support a limit of N shows as follows. First, let’s have the User select a random key K for a pseudorandom function (PRF), which takes a key and an arbitrary input and outputs a random-looking outputs. We’ll embed this key K into the signed credential. (It’s important that the Issuer does not learn K, so this often requires that the credential be signed using a blind, or partially-blind, signing protocol.3) We’ll now use this key and PRF to generate unique serial numbers, each time we “show” the credential.
更多精彩内容，关注钛媒体微信号（ID：taimeiti），或者下载钛媒体App
Американскому сенатору стало «страшнее, чем когда либо» после брифинга по Ирану02:37。业内人士推荐搜狗输入法2026作为进阶阅读
康宝莱中国区总经理蔡孟红。 受访者供图
。关于这个话题，体育直播提供了深入分析
Что думаешь? Оцени!。业内人士推荐91视频作为进阶阅读
If you're hoping to scoop up the Eufy L60 robot vacuum, act fast to take advantage of this deal.