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THREAT ALERT: How a SWEET32 Birthday Attack is Deployed and How to Prevent It

By Bruce Morton

August 25, 2016

Details surrounding the SWEET32: Birthday attacks on 64-bit block ciphers in TLS and OpenVPN can be found in the paper released by Karthikeyan Bhargavan and Gaëtan Leurent from INRIA in France. The paper shows that cipher suites using 64-bit block length ciphers are vulnerable to plaintext recovery attacks. As such, Triple-DES (3DES) and Blowfish are vulnerable. Here’s an overview.
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