Carrier-Anchored Proof-of-Human: SIM-Bound Cryptographic Identity via 3GPP AKMA

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Auteur principal: Yashesh Bharti
Format: Recurso digital
Publié: Zenodo 2026
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author Yashesh Bharti
author_facet Yashesh Bharti
contents <p>Proof-of-human verification has become a foundational requirement for digital systems as generative AI erodes the boundary between human-authored and machine-authored content. Existing approaches such as CAPTCHA, centralized biometric registries, and visual interaction puzzles face well-documented tradeoffs in robustness, privacy, and global reach. We present a proof-of-human protocol that derives application-scoped pseudonymous identifiers from 3GPP Authentication and Key Management for Applications (AKMA) session keys, binds them to the Subscriber Permanent Identifier (SUPI) so that any SIM swap or credential change automatically invalidates derived keys, and federates attestations across multiple independent authorities through a Global Human Identity Anchor (GHIA). The construction is privacy-preserving because cross-application identifiers are cryptographically unlinkable; it is fraud-resistant because revocation is cryptographic and automatic; and it is globally accessible because mobile network coverage already reaches more than 95 percent of the world's population. We describe the protocol, give a security analysis covering SIM-swap, replay, linkability, and Sybil attacks, and report on iOS and Android reference implementations. We further extend the framework to constrained IoT devices and to AI agent delegation scenarios in which a human user authorizes an agent to act on their behalf.</p> <p> </p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_20018638
institution Zenodo
language
publishDate 2026
publisher Zenodo
record_format zenodo
spellingShingle Carrier-Anchored Proof-of-Human: SIM-Bound Cryptographic Identity via 3GPP AKMA
Yashesh Bharti
proof-of-human
AKMA
3GPP
decentralized identity
federated identity
mobile authentication
privacy-preserving cryptography
<p>Proof-of-human verification has become a foundational requirement for digital systems as generative AI erodes the boundary between human-authored and machine-authored content. Existing approaches such as CAPTCHA, centralized biometric registries, and visual interaction puzzles face well-documented tradeoffs in robustness, privacy, and global reach. We present a proof-of-human protocol that derives application-scoped pseudonymous identifiers from 3GPP Authentication and Key Management for Applications (AKMA) session keys, binds them to the Subscriber Permanent Identifier (SUPI) so that any SIM swap or credential change automatically invalidates derived keys, and federates attestations across multiple independent authorities through a Global Human Identity Anchor (GHIA). The construction is privacy-preserving because cross-application identifiers are cryptographically unlinkable; it is fraud-resistant because revocation is cryptographic and automatic; and it is globally accessible because mobile network coverage already reaches more than 95 percent of the world's population. We describe the protocol, give a security analysis covering SIM-swap, replay, linkability, and Sybil attacks, and report on iOS and Android reference implementations. We further extend the framework to constrained IoT devices and to AI agent delegation scenarios in which a human user authorizes an agent to act on their behalf.</p> <p> </p>
title Carrier-Anchored Proof-of-Human: SIM-Bound Cryptographic Identity via 3GPP AKMA
topic proof-of-human
AKMA
3GPP
decentralized identity
federated identity
mobile authentication
privacy-preserving cryptography
url https://doi.org/10.5281/zenodo.20018638