Man page of RSA_blinding_on
Section: OpenSSL (3SSL)
Return to Main Contents
RSA_blinding_on, RSA_blinding_off - protect the RSA operation from timing attacks
int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
void RSA_blinding_off(RSA *rsa);
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 rsa and generates a
random blinding factor. ctx is NULL or a pre-allocated and
initialized BN_CTX. 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.
RSA_blinding_on() returns 1 on success, and 0 if an error occurred.
RSA_blinding_off() returns no value.
RSA_blinding_on() and RSA_blinding_off() appeared in SSLeay 0.9.0.
- RETURN VALUES
- SEE ALSO
This document was created by
using the manual pages.
Time: 04:14:18 GMT, September 24, 2010