Espressif ESP32-S2 Programming Manual page 566

Chapter 2. API Reference
const unsigned char *buf;
int len;
... ...
ret = SSL_CTX_use_certificate_ASN1(ctx, len, buf);
}
4.8 int SSL_CTX_use_PrivateKey (SSL_CTX * ctx, EVP_PKEY * pkey)
Arguments:
ctx - SSL context point
pkey - private key object point
Return:
1 : OK
0 : failed
Description:
load the private key into the context object
Example:
void example(void)
{
int ret;
SSL_CTX *ctx;
EVP_PKEY *pkey;
... ...
ret = SSL_CTX_use_PrivateKey(ctx, pkey);
}
4.9 int SSL_CTX_use_PrivateKey_ASN1 (int pk, SSL_CTX * ctx, const unsigned char * d, long len)
Arguments:
ctx - SSL context point
d - data point
len - private key length
Return:
1 : OK
0 : failed
Description:
load the ASN1 private key into SSL context
Example:
void example(void)
{
int ret;
int pk;
SSL_CTX *ctx;
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