AES 128 Encryption Remains Secure Against Quantum Computing Threats
Contrary to popular superstition, AES 128 is just fine in a post-quantum world
Ars Technica
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Filippo Valsorda, a cryptography engineer, asserts that AES 128 encryption is secure in a post-quantum computing world, countering popular misconceptions. Despite claims that quantum computers could undermine its effectiveness, AES 128's robust security features and extensive key combinations make it a reliable choice.
- 01AES 128 is widely used and considered secure despite quantum computing advancements.
- 02The encryption standard has no known vulnerabilities in its 30-year history.
- 03Brute-force attacks on AES 128 would take approximately 9 billion years with current resources.
- 04Claims that quantum computers could easily break AES 128 are overstated.
- 05Grover's algorithm does not significantly weaken AES 128's security as previously suggested.
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Filippo Valsorda, a cryptography engineer, emphasizes that AES 128 encryption remains secure even in the face of emerging quantum computing technologies. AES 128, part of the Advanced Encryption Standard adopted by the National Institute of Standards and Technology (NIST) in 2001, is favored for its balance of security and computational efficiency. With 2^128 possible key combinations, a brute-force attack would take around 9 billion years using the entire Bitcoin mining resources projected for 2026. While some amateur cryptographers have claimed that quantum computing, particularly through Grover's algorithm, could halve its effectiveness, Valsorda argues that these assertions are misleading. A cryptographically relevant quantum computer (CRQC) would not be able to parallelize the workload as assumed, maintaining AES 128's integrity. Thus, the encryption standard continues to be a reliable choice for securing sensitive information.
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