• Bodo Möller's avatar
    Implement fixed-window exponentiation to mitigate hyper-threading · 46a64376
    Bodo Möller authored
    timing attacks.
    
    BN_FLG_EXP_CONSTTIME requests this algorithm, and this done by default for
    RSA/DSA/DH private key computations unless
    RSA_FLAG_NO_EXP_CONSTTIME/DSA_FLAG_NO_EXP_CONSTTIME/
    DH_FLAG_NO_EXP_CONSTTIME is set.
    
    Submitted by: Matthew D Wood
    Reviewed by: Bodo Moeller
    46a64376
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