Why does showing my mental-health credential reveal which clinic issued it?
机会
Selective disclosure lets you share a single attribute without exposing your other data, but it cannot hide which institution signed the credential. A presentation from a credential issued by a psychiatric facility, an HIV clinic, or a criminal court tells the verifier something sensitive before a single attribute is shared. The EU Digital Identity Wallet Architecture and Reference Framework mandates issuer-hiding, but a June 2026 technical audit of the wallet finds no deployed mechanism that achieves it. Solutions in the research literature, anonymous credential schemes, issuer-set membership proofs, are incompatible with the SD-JWT and mdoc formats already locked in as the wallet defaults. Every sensitive-domain deployment today ships on a standard that leaks the one thing it was supposed to protect.
为什么重要
Issuer-hiding is the missing layer that makes selective disclosure usable in exactly the domains where privacy matters most.
我如何评估机会
机会评分是我的个人判断，而非量化指标：痛苦程度、发生频率，以及当前解决方案的匮乏程度。分数越高，意味着我认为越值得去构建。
出现时造成的痛苦程度。
人们实际遇到它的频率。
当前针对它的优质工具有多匮乏。