|RSA_BLINDING_ON(3)||Library Functions Manual||RSA_BLINDING_ON(3)|
RSA_blinding_off — protect
the RSA operation from timing attacks
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.
NULL or a pre-allocated
and initialized BN_CTX.
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() first appeared in SSLeay 0.9.0
and have been available since OpenBSD 2.4.
|June 6, 2019||OpenBSD-current|