Search results for Shor's algorithm
Crypto
Stellar pursues quantum-resistant migration without address changes, signing key replacement central
The Stellar Development Foundation unveiled QPP, a roadmap to prepare the Stellar (XLM) network for quantum computers, and said it aims to complete a shift of all accounts to quantum-resistant signatures by the end of 2027. The plan is designed to keep existing addresses and transaction histories intact while replacing only signing keys. It outlines a three-stage rollout from 2026, adds NIST-standardised ML-DSA support, and raises dormant-account handling as a remaining issue.
Crypto
Quantum computers still not a practical threat to AES-128 symmetric encryption
Even if quantum computing advances, symmetric-key encryption such as AES-128 is not a realistic target for attacks, a claim said. Cryptography engineer Filippo Valsorda, who maintains the Go programming language’s cryptography standard library, said quantum threats should distinguish between public-key and symmetric-key cryptography. He said Shor’s algorithm threatens asymmetric systems such as RSA and ECDSA, while Grover-based attacks on AES-128 remain extremely costly. He also urged focusing resources on replacing Shor-vulnerable public-key cryptography.
Crypto
StarkWare researcher proposes way to block quantum attacks on bitcoin without soft fork
A StarkWare researcher has published a paper proposing a way to protect bitcoin transactions from quantum-computing attacks without a soft fork. The paper introduces “Quantum Safe Bitcoin,” or QSB, which aims to add quantum resistance using only existing legacy script constraints. It replaces elliptic-curve cryptography with a Binohash-based structure using one-time signatures and a new hash-to-signature puzzle. The author said the approach is costly, at about $75 to $150 per transaction.
