# anonymous credentials

Published articles for anonymous credentials.

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## Anonymous credentials: an illustrated primer (Part 2)

DevFeed: [Anonymous credentials: an illustrated primer (Part 2)](<https://devfeed.tech/articles/anonymous-credentials-an-illustrated-primer-part-2-29095.md>)

Original publisher: [Read original article](<https://blog.cryptographyengineering.com/2026/04/17/anonymous-credentials-an-illustrated-primer-part-2/>)

Author: Matthew Green

Published: 2026-04-17T17:19:15Z

Content type: tutorial

Language: en

Sources: [Matthew Green](<https://devfeed.tech/sources/matthew-green.md>)

Topics: [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [Security, Privacy and Abuse Prevention](<https://devfeed.tech/topics/security-privacy-and-abuse-prevention.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [anonymous-credentials](<https://devfeed.tech/tags/anonymous-credentials.md>), [artificial-intelligence](<https://devfeed.tech/tags/artificial-intelligence.md>), [attacks](<https://devfeed.tech/tags/attacks.md>), [credentials](<https://devfeed.tech/tags/credentials.md>), [cybersecurity](<https://devfeed.tech/tags/cybersecurity.md>), [privacy](<https://devfeed.tech/tags/privacy.md>), [resources](<https://devfeed.tech/tags/resources.md>), [security](<https://devfeed.tech/tags/security.md>), [state](<https://devfeed.tech/tags/state.md>), [technology](<https://devfeed.tech/tags/technology.md>)

### AI overview

Part two of an illustrated primer on anonymous credentials moves from the theoretical overview in part one toward practical discussion of real-world credential systems. It explains privacy-preserving authentication, credential showing without linkability, limits on credential reuse, cloning attacks, and expressive claims.

### Source excerpt

This is the second in a series of posts about anonymous credentials. You can find the first part here. In the previous post, we introduced the notion of anonymous credentials as a technique that allows users to authenticate to a website without sacrificing their privacy. As a quick reminder, an anonymous credential system consists of ... Continue reading Anonymous credentials: an illustrated primer (Part 2) ->

## Anonymous credentials: an illustrated primer

DevFeed: [Anonymous credentials: an illustrated primer](<https://devfeed.tech/articles/anonymous-credentials-an-illustrated-primer-29094.md>)

Original publisher: [Read original article](<https://blog.cryptographyengineering.com/2026/03/02/anonymous-credentials-an-illustrated-primer/>)

Author: Matthew Green

Published: 2026-03-02T17:29:36Z

Content type: tutorial

Language: en

Sources: [Matthew Green](<https://devfeed.tech/sources/matthew-green.md>)

Topics: [Authentication](<https://devfeed.tech/topics/authentication.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [Security & Privacy](<https://devfeed.tech/topics/security-privacy.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [anonymous-credentials](<https://devfeed.tech/tags/anonymous-credentials.md>), [artificial-intelligence](<https://devfeed.tech/tags/artificial-intelligence.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [cybersecurity](<https://devfeed.tech/tags/cybersecurity.md>), [mfa](<https://devfeed.tech/tags/mfa.md>), [passwords](<https://devfeed.tech/tags/passwords.md>), [privacy](<https://devfeed.tech/tags/privacy.md>), [security](<https://devfeed.tech/tags/security.md>), [technology](<https://devfeed.tech/tags/technology.md>)

### AI overview

This primer introduces anonymous authentication as a computer-security problem and explains how websites use credentials, pseudonymous accounts, cookies, CAPTCHAs, MFA, and passkeys to control access. It argues that advertising-driven data collection and expanding age-verification laws are pushing more services toward identity checks, potentially reducing anonymous online use.

### Source excerpt

This post has been on my back burner for well over a year. This has bothered me, since with every month that goes by, I become more convinced that anonymous authentication the most important topic we could be talking about as cryptographers. This isn't just because I love neat cryptography: it's that I don't trust ... Continue reading Anonymous credentials: an illustrated primer ->