93e450793c
Option --pinnedpubkey takes a path to a public key in DER format and only connect if it matches (currently only implemented with OpenSSL). Provides CURLOPT_PINNEDPUBLICKEY for curl_easy_setopt(). Extract a public RSA key from a website like so: openssl s_client -connect google.com:443 2>&1 < /dev/null | \ sed -n '/-----BEGIN/,/-----END/p' | openssl x509 -noout -pubkey \ | openssl rsa -pubin -outform DER > google.com.der
52 lines
2.2 KiB
Groff
52 lines
2.2 KiB
Groff
.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at http://curl.haxx.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_PINNEDPUBLICKEY 3 "27 Aug 2014" "libcurl 7.38.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_PINNEDPUBLICKEY \- set pinned public key
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PINNEDPUBLICKEY, char *pinnedpubkey);
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.SH DESCRIPTION
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Pass a pointer to a zero terminated string as parameter. The string should be
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the file name of your pinned public key. The format expected is "DER".
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When negotiating a TLS or SSL connection, the server sends a certificate
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indicating its identity. A public key is extracted from this certificate
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and if it does not exactly match the public key provided to this option,
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curl will abort the connection before sending or receiving any data.
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This is currently only implemented in the OpenSSL backend, with more backends
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expected to follow shortly.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc.
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.SH EXAMPLE
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TODO
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.SH AVAILABILITY
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If built TLS enabled.
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.SH RETURN VALUE
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Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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