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... are secure for up to 30 years. Unfortunately, you didn't reference where this number comes from. Breaking asymmetric cryptosystems comes with various flavors: Scientific advances and new records, e.g. the factorization of RSA-768 in 2009 What intelligence agencies are capable of (it can be assumed to be a few years ahead of scientific advances, ...


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I think that there is no chance of getting such an asymmetric cipher simply because you forgot about science. The security on todays asymmetric cryptography is mostly based on the assumption that some mathematical algorithms cannot be reversed (e.g. the discrete logarithm or integer factorization). If mathematics solves this problems then the algorithm is ...


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The performance can be configuration specific, so beware that any outcome is specific to a machine. Take care that you test on the right configuration(s). The performance may also be specific to a certain input size. So test for specific amounts of data while keeping in mind that most hash methods operate on blocks (it doesn't make much sense to test 1 byte ...



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