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SSL: implement public key pinning

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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
This commit is contained in:
moparisthebest 2014-09-30 22:31:17 -04:00 • committed by Daniel Stenberg
parent d1b56d0043
commit 93e450793c
20 changed files with 311 additions and 2 deletions
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1
src/tool_cfgable.c
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@ -101,6 +101,7 @@ static void free_config_fields(struct OperationConfig *config)
Curl_safefree(config->cacert);
Curl_safefree(config->capath);
Curl_safefree(config->crlfile);
Curl_safefree(config->pinnedpubkey);
Curl_safefree(config->key);
Curl_safefree(config->key_type);
Curl_safefree(config->key_passwd);