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'Serious' Microsoft Office Encryption Flaw Uncovered | |
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| Time: 09:10 EST/14:10 GMT | News Source: PC World | Posted By: Chris Hedlund | ||
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Cryptographer says defect leaves users vulnerable. Cryptography expert Phil Zimmermann says he believes a flaw recently discovered in Microsoft Office's Word and Excel encryption is serious and warrants immediate attention. "I think this is a serious flaw--it is highly exploitable. It is not a theoretical attack," says Zimmermann, referring to a flaw in Microsoft's use of RC4 document encryption unearthed recently by a researcher in Singapore. Zimmermann is best known as the creator of Pretty Good Privacy, a desktop encryption program so powerful that U.S. authorities attempted to have its distribution stopped and Zimmermann imprisoned for writing it. The case was abandoned in 1996. | ||
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