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Google Research Flags Quantum Risk to ECDLP-256 Used Across Blockchains

Google Research Flags Quantum Risk to ECDLP-256 Used Across Blockchains

According to Google Research, a new white paper outlines responsible disclosure around quantum threats and says future attacks on Bitcoin’s ECDSA could place about 2 million BTC at risk.

BTC

Summary

Google Research published a white paper on quantum threats to cryptocurrency and responsible disclosure, adding detail to its earlier warnings about blockchain cryptography. The report says Bitcoin’s ECDSA could become vulnerable under future high-performance quantum computing and highlights potential risk to about 2 million BTC. This expands on Google’s broader warning that cryptographic systems based on ECDLP-256 face growing long-term pressure from quantum advances, reinforcing the need for migration to post-quantum cryptography.

Terms & Concepts
  • ECDSA: The Elliptic Curve Digital Signature Algorithm used to sign blockchain transactions and prove control of crypto assets.
  • ECDLP-256: A 256-bit elliptic curve discrete logarithm problem used as the security basis for many blockchain signature and public-key systems.
  • Post-quantum cryptography: Cryptographic methods designed to remain secure against attacks from quantum computers.