A group of cryptographers has developed a new attack that has broken Kasumi, the encryption algorithm used to secure traffic on 3G GSM wireless networks. The technique enables them to recover a full key by using a tactic known as a related-hey attack, but experts say it is not the end of the world for Kasumi.. Kasumi, also known as A5/3, is the standard cipher used to encrypt communications on 3G GSM networks, and it's a modified version of an older algorithm called Misty. The paper describing the new attack is not yet public, but the Emergent Chaos blog has a good description of the attack, including an excerpt from the abstract: The link for this article located at Threat Post is no longer available. . A5/1, often referred to as Kaito, is the conventional algorithm employed to secure data transmissions over GSM mobile networks in the 2G realm.. GSM Cipher, Kasumi Attack, 3G Security, Mobile Encryption. . LinuxSecurity.com Team
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