If B<CMS_NO_ATTR_VERIFY> is set the signed attributes signature is not
verified, unless CMS_CADES flag is also set.
-If B<CMS_CADES> is set, each signer certificate is checked against the
+If B<CMS_CADES> is set, each signer certificate is checked against the
ESS signingCertificate or ESS signingCertificateV2 extension
that is required in the signed attributes of the signature.