Encrypted images vulnerable to new attack
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rifles only
rifles only writes "A German techie has found a remarkably simple way to discern some of the content of encrypted volumes containing images. The encrypted images don't reveal themselves totally, but in many cases do let an attacker see the outline of a high-contrast image. The attack works regardless of the encryption algorithm used (the widely-used AES for instance), and affects all utilities that use single symmetric keys. More significant to police around the world struggling with criminal and terrorist use of encryption, the attack also breaks the ability of users to 'hide' separate encrypted volumes inside already encrypted volumes, whose existence can now for the first time now be revealed. Encryption won't save us after all.
http://www.techworld.com/security/news/index.cfm?newsid=105263"
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Encrypted images vulnerable to new attack