EVP_PKEY_get_utf8_string_param

Read a UTF-8 string parameter from a key by OSSL_PKEY_PARAM name.

Synopsis

Declared in <openssl/evp.h>

int
EVP_PKEY_get_utf8_string_param(
    EVP_PKEY const* pkey,
    char const* key_name,
    char* str,
    size_t max_buf_sz,
    size_t* out_sz);

Return Value

1 on success, or 0 on failure.

Parameters

NameDescription
pkeyKey to query.
key_nameParameter name such as OSSL_PKEY_PARAM_GROUP_NAME.
strOutput buffer for the NUL-terminated string, or NULL to query size only.
max_buf_szCapacity of str in bytes.
out_szOptional pointer receiving the required/written length including NUL.