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PQC Adoption 45.2% in SSH but Under 10% in HTTPS

1 source · 2 articlesFirst reported Updated ()
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First merged summary.

Merged summary · x-ai/grok-4.7 · rewritten as coverage arrivesSummaries by Vani AI

Post-quantum cryptography support reaches 45.2% of SSH hosts but only 9.1% of HTTPS servers.

Two empirical studies assess post-quantum cryptography deployment in SSH and TLS protocols. Researchers examined 1.52 million SSH hosts on port 22 and found 45.2% support PQC with 39.9% of 27,012 entities enabling it on at least one host. In contrast, analysis of 10,000 targets per protocol showed 9.1% HTTPS server support, 7.39% for LDAPS, and below 1% for other protocols, with entity-level HTTPS support at 11%. Adoption correlates with industry, geography, and organizational size.

Key facts
  • 45.2% of 1.52M SSH hosts support PQC
  • 39.9% of 27,012 entities enable SSH PQC
  • 9.1% HTTPS server support at origin level
  • Below 1% for most other TLS protocols
  • 11% entity-level HTTPS PQC support
  • Correlates with industry, geography, size
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What each outlet adds

beyond the shared facts
  • arXiv SSH studyPQC on 45.2% of 1.52M SSH hosts and 39.9% of entities
  • arXiv TLS study9.1% HTTPS server support and below 1% for most protocols

Coverage

oldest first · one row per article · UTC
  1. · 5d ago arXiv cs.CRFirst report

    arXiv study assesses post-quantum cryptography adoption in SSH

    PQC enabled on 45.2% of SSH hosts but only 39.9% of entities show any support.

  2. · 5d ago arXiv cs.CR

    arXiv study assesses post-quantum cryptography adoption in TLS

    PQC support reaches only 9.1% for HTTPS and below 1% for other protocols at server level.