CMS_EncryptedData
.offset = offsetof(CMS_EncryptedData, version),
.offset = offsetof(CMS_EncryptedData, encryptedContentInfo),
.offset = offsetof(CMS_EncryptedData, unprotectedAttrs),
.size = sizeof(CMS_EncryptedData),
cms->d.encryptedData = (CMS_EncryptedData *)ASN1_item_new(&CMS_EncryptedData_it);
CMS_EncryptedData *enc = cms->d.encryptedData;
CMS_EncryptedData *encryptedData;