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11.12.2013 Kategorie: Journal zur Sicherheitsforschung, IT-Sicherheit

New MJS Article released

Why Android SSL was downgraded from AES256-SHA to RC4-MD5 in late 2010 by Dr. Georg Lukas

Android is using the combination of broken RC4 and MD5 as the first default cipher on all SSL connections. This impacts all apps that did not change the list of enabled ciphers (i.e. almost all existing apps). This paper investigates why RC4-MD5 is the default cipher, and why it replaced better ciphers which were in use prior to the Android 2.3 release in December 2010.