ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc): Enable the automatic curve selection for ECDH by calling SSL_CTX_set_ecdh_auto(). With this a TLS server automatically selects a curve which both the client and the server support to use in ECDH. This changes the default behavior but users can still disable ECDH by excluding 'ECDH' cipher suites from the cipher list (with SSLContext#ciphers=). This commit also deprecate #tmp_ecdh_callback=. It was added in Ruby 2.3.0. It wraps SSL_CTX_set_tmp_ecdh_callback() which will be removed in OpenSSL 1.1.0. Its callback receives two values 'is_export' and 'keylength' but both are completely useless for determining a curve to use in ECDH. The automatic curve selection was introduced to replace this.
(ossl_sslctx_setup): Deprecate SSLContext#tmp_ecdh_callback=. Emit a warning if this is in use.
(ossl_sslctx_set_ecdh_curves): Add SSLContext#ecdh_curves=. Wrap SSL_CTX_set1_curves_list(). If it is not available, this falls back to SSL_CTX_set_tmp_ecdh().
(Init_ossl_ssl): Define SSLContext#ecdh_curves=.
ext/openssl/extconf.rb: Check the existence of EC_curve_nist2nid(), SSL_CTX_set1_curves_list(), SSL_CTX_set_ecdh_auto() and SSL_CTX_set_tmp_ecdh_callback().
ext/openssl/openssl_missing.[ch]: Implement EC_curve_nist2nid() if missing.
test/openssl/test_pair.rb (test_ecdh_callback): Use EnvUtil.suppress_warning to suppress deprecated warning.
(test_ecdh_curves): Test that SSLContext#ecdh_curves= works.
test/openssl/utils.rb (start_server): Use SSLContext#ecdh_curves=.
Added by rhenium (Kazuki Yamaguchi) over 9 years ago
openssl: add SSLContext#ecdh_curves=
ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc): Enable the automatic
curve selection for ECDH by calling SSL_CTX_set_ecdh_auto(). With
this a TLS server automatically selects a curve which both the client
and the server support to use in ECDH. This changes the default
behavior but users can still disable ECDH by excluding 'ECDH' cipher
suites from the cipher list (with SSLContext#ciphers=). This commit
also deprecate #tmp_ecdh_callback=. It was added in Ruby 2.3.0. It
wraps SSL_CTX_set_tmp_ecdh_callback() which will be removed in OpenSSL
1.1.0. Its callback receives two values 'is_export' and 'keylength'
but both are completely useless for determining a curve to use in
ECDH. The automatic curve selection was introduced to replace this.
(ossl_sslctx_setup): Deprecate SSLContext#tmp_ecdh_callback=. Emit a
warning if this is in use.
(ossl_sslctx_set_ecdh_curves): Add SSLContext#ecdh_curves=. Wrap
SSL_CTX_set1_curves_list(). If it is not available, this falls back
to SSL_CTX_set_tmp_ecdh().
(Init_ossl_ssl): Define SSLContext#ecdh_curves=.
ext/openssl/extconf.rb: Check the existence of EC_curve_nist2nid(),
SSL_CTX_set1_curves_list(), SSL_CTX_set_ecdh_auto() and
SSL_CTX_set_tmp_ecdh_callback().
ext/openssl/openssl_missing.[ch]: Implement EC_curve_nist2nid() if
missing.
test/openssl/test_pair.rb (test_ecdh_callback): Use
EnvUtil.suppress_warning to suppress deprecated warning.
(test_ecdh_curves): Test that SSLContext#ecdh_curves= works.
test/openssl/utils.rb (start_server): Use SSLContext#ecdh_curves=.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e