Backdoor Disasters

Last week I explained why government-imposed backdoors cause more problems than they solve, and government-imposed weaknesses from the 1990s are still causing SSL/TLS security problems. Let’s see some of the other ways backdoors have spectacularly failed. This is nothing new The problem of insider abuse goes back to an era when letters and telegrams were […]
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What Could Possibly Go Wrong With Backdoors?

What could possibly go wrong with back doors? Pretty much everything imaginable. You must have seen about the debate between the FBI and Apple over providing a backdoor for the Apple iPhone 5C model. I strongly agree with Michael Hayden, former head of both the Central Intelligence Agency and the National Security Agency. In an […]
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Is “Perfect Forward Secrecy” Perfect?

My previous post was a response to a participant’s question — How Diffie-Hellman key exchange works? This time I’d like to talk about “Perfect Forward Secrecy” because some participants asked, “What makes it perfect?” Perfect Forward Secrecy or PFS is any scheme where discovering a key to access one message in an exchange between parties […]
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Is Curtailing the Use of Encryption Apps a Good Idea?

Here in the US, and indeed in the press around the world, there are new calls to curtail the use of encryption. I suppose it is natural for politicians to seek boogeymen. Encryption is a good one as it just sounds like something only governments and bad guys would want to use. Never mind that […]
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