Manual Pages for UNIX Operating System command usage for man RSA_blinding_off

OpenSSL                                 RSA_blinding_on(3openssl)



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     RSA_blinding_on, RSA_blinding_off - protect the RSA
     operation from timing attacks

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      #include 

      int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);

      void RSA_blinding_off(RSA *rsa);


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     RSA is vulnerable to timing attacks. In a setup where
     attackers can measure the time of RSA decryption or
     signature operations, blinding must be used to protect the
     RSA operation from that attack.

     RSA_blinding_on() turns blinding on for key rrrrssssaaaa and
     generates a random blinding factor. ccccttttxxxx is NNNNUUUULLLLLLLL or a pre-
     allocated and initialized BBBBNNNN_CCCCTTTTXXXX. The random number
     generator must be seeded prior to calling RSA_blinding_on().

     RSA_blinding_off() turns blinding off and frees the memory
     used for the blinding factor.

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     RSA_blinding_on() returns 1 on success, and 0 if an error
     occurred.

     RSA_blinding_off() returns no value.

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     rsa(3), rand(3)

HHHHIIIISSSSTTTTOOOORRRRYYYY
     RSA_blinding_on() and RSA_blinding_off() appeared in SSLeay
     0.9.0.

















24/Feb/2000            Last change: 0.9.8o                      1