RSA_blinding_on man page on MirBSD

RSA_blinding_on man page on MirBSD

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RSA_BLINDING_ON(3)	     OpenSSL	       RSA_BLINDING_ON(3)

NAME
     RSA_blinding_on, RSA_blinding_off - protect the RSA opera-
     tion from timing attacks

SYNOPSIS
      #include <openssl/rsa.h>

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

      void RSA_blinding_off(RSA *rsa);

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

     RSA_blinding_on() turns blinding on for key rsa and gen-
     erates a random blinding factor. ctx is NULL or a pre-
     allocated and initialized BN_CTX. The random number genera-
     tor must be seeded prior to calling RSA_blinding_on().

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

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

     RSA_blinding_off() returns no value.

SEE ALSO
     rsa(3), rand(3)

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

MirOS BSD #10-current	   2005-02-05				1

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