EVP_PKEY_get_octet_string_param

Read an octet-string parameter from a key by OSSL_PKEY_PARAM name.

Synopsis

Declared in <openssl/evp.h>

int
EVP_PKEY_get_octet_string_param(
    EVP_PKEY const* pkey,
    char const* key_name,
    unsigned char* buf,
    size_t max_buf_sz,
    size_t* out_sz);

Return Value

1 on success, or 0 on error.

Parameters

NameDescription
pkeyKey to query.
key_nameParameter name (for example OSSL_PKEY_PARAM_PUB_KEY).
bufDestination buffer, or NULL to only query the required size.
max_buf_szCapacity of buf in bytes.
out_szReceives the parameter length in bytes.