22 (ii) (b) in a repository; or otherwise demonstrates approval of the certificate while knowing or having notice of its contents. (2) A subscriber referred to in a certificate shall, by accepting a certificate, certify to any person who may rely on the information contained in the certificate that - 35. - he rightfully holds the private key corresponding to the public key referred to in the certificate; (b) every representation made by him to the certification authority which is material to the information set out in the certificate are true; and (c) all information in the certificate that is within his knowledge is true. Control of private key (1) (2) 36. (a) A subscriber identified in a certificate shall, on accepting a certificate (a) exercise reasonable care to retain control of the private key corresponding to the public key referred to in the certificate; and (b) prevent its disclosure to create his digital signature. Subsection (1) shall continue to apply during (a) the operational period of the certificate; and (b) any period of suspension of the certificate. Initiating suspension or revocation Where the private key corresponding to the public key referred to in a certificate has been compromised or otherwise becomes unreliable, a subscriber who has accepted the certificate shall forthwith request the relevant certification authority to suspend or revoke the certificate.