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
       string "P12" or "PEM" 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 file name as input.

DEFAULT

       NULL

PROTOCOLS

       All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         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");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY

       Added in 7.71.0. This option is supported by the OpenSSL, Secure Transport and Schannel backends.

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_SSLCERTTYPE(3), CURLOPT_SSLKEY(3),