NAME

       CURLOPT_SSLCERT_BLOB - SSL client certificate from memory blob

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLCERT_BLOB,
                                 struct curl_blob *stblob);

DESCRIPTION

       Pass  a  pointer  to  a  curl_blob  structure,  which contains (pointer and size) a client
       certificate. The format must be "P12" on Secure Transport or Schannel. The format must  be
       "P12"  or  "PEM" on OpenSSL. The format must be "DER" or "PEM" on mbedTLS. The format must
       be specified with CURLOPT_SSLCERTTYPE(3).

       If  the  blob  is  initialized  with  the  flags  member  of  struct  curl_blob   set   to
       CURL_BLOB_COPY,  the  application  does  not  have to keep the buffer around after setting
       this.

       This option is an alternative to CURLOPT_SSLCERT(3) which instead expects  a  filename  as
       input.

DEFAULT

       NULL

PROTOCOLS

       This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

       This  option  works  only  with  the  following  TLS  backends:  OpenSSL, Schannel, Secure
       Transport and mbedTLS

EXAMPLE

       extern char *certificateData; /* point to data */
       extern size_t filesize; /* size of data */

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           struct curl_blob stblob;
           stblob.data = certificateData;
           stblob.len = filesize;
           stblob.flags = CURL_BLOB_COPY;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           curl_easy_setopt(curl, CURLOPT_SSLCERT_BLOB, &stblob);
           curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, "P12");
           curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "s3cret");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 7.71.0

RETURN VALUE

       Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not,  or  CURLE_OUT_OF_MEMORY  if
       there was insufficient heap space.

SEE ALSO

       CURLOPT_KEYPASSWD(3), CURLOPT_SSLCERTTYPE(3), CURLOPT_SSLKEY(3)