Initialise ctx for signature verification with optional parameters.
Declared in <openssl/evp.h>
int
EVP_PKEY_verify_init_ex(
EVP_PKEY_CTX* ctx,
OSSL_PARAM const params[]);1 on success, or a non-positive value on failure.
| Name | Description |
|---|---|
| ctx | Key context holding the public key (or key pair) used to verify. |
| params | Optional parameter array terminated by OSSL_PARAM_END, or NULL. |