This article provides an overview of the post-quantum cryptography (PQC) landscape, covering newer signature algorithms (FN-DSA/Falcon, SLH-DSA), composite signatures, and the IETF PLANTS working group's development of Merkle Tree Certificates to address TLS handshake bloat. It notes that while symmetric encryption remains quantum-safe, the industry is accelerating PQC adoption timelines to 2029 in response to research suggesting cryptographically relevant quantum computers may arrive sooner than expected.
Merkle Tree Certificates
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Post-Quantum Cryptography: What’s Next for Edge Security