PrivacyPass has two separate issuance protocols. One uses blind RSA signatures, which are more or less an exact mapping to the protocol we described above. The second one replaces the signature with a special kind of MAC scheme, which is built from an elliptic-curve OPRF scheme. MACs work very similarly to signatures, but require the secret key for verification. Hence, this version of PrivacyPass really only works in cases where the Resource and the Issuer are the same person, or where the Resource is willing to outsource verification of credentials to the Issuer.
12:59, 4 марта 2026Бывший СССР
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唯物史观认为，人的实践活动推动社会基本矛盾发展，人的实践能力解决社会基本矛盾问题，人的实践目的影响社会基本矛盾轨迹，而社会基本矛盾运动的根本指向在于实现人的自由全面发展。在物质生产、精神创造和社会活动中，社会基本矛盾运动通常是以作为实践主体的人的能动性、社会性、历史性体现出来的。社会基本矛盾运动规律的客观规定性与人的主体性、实践性和能动性有机统一，推动了社会发展，创造了人类文明。在社会主义社会，社会基本矛盾的主客观有机统一性，典型地体现在以下几个方面。，这一点在91视频中也有详细论述
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