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Google Cloud Blog
Future-proofing data integrity: Quantum-safe digital signatures in Cloud KMS
In response to the emerging threat of quantum computing, Google Cloud KMS has launched quantum-safe digital signatures and post-quantum key encapsulation. This development is vital as organizations, including U.S. government agencies, are mandated to transition to quantum-safe cryptography to maintain data integrity and authenticity. The new services available aim to simplify this complex process for organizations.
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Published 28 Jul 2026, 17:55 UTC3 min read
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Summary
TL;DR
- Google Cloud KMS introduces quantum-safe digital signatures.
- New algorithms include ML-DSA and SLH-DSA for enhanced security.
- Supports regulatory compliance amid quantum threats.
- PQC algorithms facilitate efficient signing of large data payloads.
- Cloud KMS provides broad algorithm options for organizations.
Interesting facts
- The transition to quantum-safe signatures is prioritized by regulatory bodies.
- External-µ variants optimize the signing process for large messages.
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