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 file name as input.

DEFAULT

       NULL

PROTOCOLS

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

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 7.71.0. This option is supported by the OpenSSL, Secure Transport, Schannel and  mbedTLS  (since
       7.78.0) 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), CURLOPT_KEYPASSWD(3)

ibcurl 8.5.0                                    December 04, 2023                        CURLOPT_SSLCERT_BLOB(3)