Generate parameters or a key pair into *ppkey (unified keygen/paramgen entry).
1 on success, or a non-positive value on failure.
| Name | Description |
|---|---|
| ctx | Context prepared with EVP_PKEY_keygen_init() or EVP_PKEY_paramgen_init(). |
| ppkey | Address of an EVP_PKEY pointer that receives the new object (allocated if NULL). |