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On L, 2017-11-11 at 00:10 +0000, Jorge Almeida wrote: |
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> Well, most programmers probably won't care about this stuff anyway, |
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> and people who deal with cryptography tend to be more cautious than |
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> average. But I'm not really making a case for safe versions of known |
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> functions. After all, the usual functions do fine for most |
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> applications. memset() would be enough to clear RAM with sensitive |
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> data if we had a pragma (or equivalent) to convince the compiler to |
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> not ignore it (I mean a pragma to invoke on a particular function |
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> definition when the programmer feels that a black box behaviour is |
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> undesirable). Of course, solving the problem of the compiler copying |
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> stuff around might be harder nut to crack. |
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Sounds like you want explicit_bzero from libbsd? |
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