sk_CMS_CertificateChoices_value
cch = sk_CMS_CertificateChoices_value(org->certificates, i);
cch = sk_CMS_CertificateChoices_value(*pcerts, i);
cch = sk_CMS_CertificateChoices_value(*pcerts, i);
cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
cch = sk_CMS_CertificateChoices_value(certs, j);