CECPQ1
In cryptography, CECPQ1 (combined elliptic-curve and post-quantum 1) is a post-quantum key-agreement protocol developed by Google as a limited experiment[1] for use in Transport Layer Security (TLS) by web browsers.[2] It was succeeded by CECPQ2.
Details
CECPQ1 was designed to test algorithms that can provide confidentiality even against an attacker who possesses a large quantum computer. It is a key-agreement algorithm for TLS that combines X25519 and NewHope, a ring learning with errors primitive. Even if NewHope were to turn out to be compromised, the parallel X25519 key-agreement ensures that CECPQ1 provides at least the security of existing connections.[2]
It was available in Google Chrome 54 beta.[3] In 2016, its experimental use in Chrome ended and it was planned to be disabled in a later Chrome update.[4]
It was succeeded by CECPQ2.
See also
- Elliptic-curve Diffie–Hellman (ECDH) – an anonymous key agreement protocol
References
- ↑ "Experimenting with Post-Quantum Cryptography" (in en). https://security.googleblog.com/2016/07/experimenting-with-post-quantum.html.
- ↑ 2.0 2.1 "Chrome: Stop future computers from cracking current encryption". CNET. https://www.cnet.com/au/news/chrome-updated-so-tomorrows-quantum-computers-cant-crack-todays-encryption.
- ↑ "Chrome 54 Beta Brings Custom Elements V1: Create Custom HTML Tags - Phoronix". Phoronix. https://phoronix.com/scan.php?page=news_item&px=Chrome-54-Beta-Released.
- ↑ "CECPQ1 results (28 Nov 2016)". Adam Langley, security officer at Google. https://www.imperialviolet.org/2016/11/28/cecpq1.html.
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