对于Mac OS X上的Python应用程序,我需要设置一个带有TLSv1.2,Forward Secrecy和没有RC4密码的HTTPS服务器 . 使用Paste和pyOpenSSL我写了下面的代码:
from paste import httpserver
from OpenSSL import SSL
context = SSL.Context(SSL.SSLv23_METHOD)
context.use_privatekey_file("/Path/to/my/private.key")
context.use_certificate_chain_file("/Path/to/my/chain-cert.pem")
context.set_options(SSL.OP_NO_SSLv2)
context.set_options(SSL.OP_NO_SSLv3)
context.set_options(SSL.OP_SINGLE_DH_USE)
context.set_cipher_list("EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:EDH+aRSA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4")
logger.debug("OPENSSL version: %s" % SSL.SSLeay_version(SSL.SSLEAY_VERSION))
httpserver.serve(app_logged, host=http_host, port=http_port, server_version=server_version, ssl_context=context, use_threadpool=True, threadpool_workers=15, request_queue_size=5)
但Safari,Chrome和OpenSSL客户端无法连接到我的服务器,错误为“无共享密码” . 那么,我做错了什么?
Note :Python(2.7.6)和OpenSSL(0.9.8)的默认OS X版本与TLSv1.2不兼容,因此我必须从源代码编译OpenSSL 1.0.2和Python 2.7.10 .
如果我检查我的OpenSSL密码列表,它会给我这个:
$ /usr/local/bin/openssl ciphers -V 'EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:EDH+aRSA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4'
0xC0,0x2C - ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AESGCM(256) Mac=AEAD
0xC0,0x2B - ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AESGCM(128) Mac=AEAD
0xC0,0x30 - ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AESGCM(256) Mac=AEAD
0xC0,0x2F - ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH Au=RSA Enc=AESGCM(128) Mac=AEAD
0xC0,0x24 - ECDHE-ECDSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AES(256) Mac=SHA384
0xC0,0x23 - ECDHE-ECDSA-AES128-SHA256 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AES(128) Mac=SHA256
0xC0,0x28 - ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
0xC0,0x27 - ECDHE-RSA-AES128-SHA256 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(128) Mac=SHA256
0xC0,0x14 - ECDHE-RSA-AES256-SHA SSLv3 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA1
0xC0,0x0A - ECDHE-ECDSA-AES256-SHA SSLv3 Kx=ECDH Au=ECDSA Enc=AES(256) Mac=SHA1
0xC0,0x13 - ECDHE-RSA-AES128-SHA SSLv3 Kx=ECDH Au=RSA Enc=AES(128) Mac=SHA1
0xC0,0x09 - ECDHE-ECDSA-AES128-SHA SSLv3 Kx=ECDH Au=ECDSA Enc=AES(128) Mac=SHA1
0x00,0x9F - DHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=DH Au=RSA Enc=AESGCM(256) Mac=AEAD
0x00,0x6B - DHE-RSA-AES256-SHA256 TLSv1.2 Kx=DH Au=RSA Enc=AES(256) Mac=SHA256
0x00,0x39 - DHE-RSA-AES256-SHA SSLv3 Kx=DH Au=RSA Enc=AES(256) Mac=SHA1
0x00,0x88 - DHE-RSA-CAMELLIA256-SHA SSLv3 Kx=DH Au=RSA Enc=Camellia(256) Mac=SHA1
0x00,0x9E - DHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=DH Au=RSA Enc=AESGCM(128) Mac=AEAD
0x00,0x67 - DHE-RSA-AES128-SHA256 TLSv1.2 Kx=DH Au=RSA Enc=AES(128) Mac=SHA256
0x00,0x33 - DHE-RSA-AES128-SHA SSLv3 Kx=DH Au=RSA Enc=AES(128) Mac=SHA1
0x00,0x9A - DHE-RSA-SEED-SHA SSLv3 Kx=DH Au=RSA Enc=SEED(128) Mac=SHA1
0x00,0x45 - DHE-RSA-CAMELLIA128-SHA SSLv3 Kx=DH Au=RSA Enc=Camellia(128) Mac=SHA1
我知道Safari 8与密码“ECDHE-RSA-AES128-SHA256”兼容,所以为什么我有一个'无共享密码'错误?
$ /usr/local/bin/openssl s_client -connect 192.168.0.17:4443 -tls1_2
CONNECTED(00000003)
140735274361680:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:s3_pkt.c:1472:SSL alert number 40
140735274361680:error:1409E0E5:SSL routines:ssl3_write_bytes:ssl handshake failure:s3_pkt.c:656:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 7 bytes and written 0 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : 0000
Session-ID:
Session-ID-ctx:
Master-Key:
Key-Arg : None
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1439975452
Timeout : 7200 (sec)
Verify return code: 0 (ok)
---
Alternative: 如果我将密码列表更改为
context.set_cipher_list("HIGH:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4:@STRENGTH")
它可以工作,浏览器和openssl客户端能够在协议TLSv1.2上使用密码'AES256-GCM-SHA384' Build 安全连接,但它不是ECDHE密码(因此没有前向保密) .
EDIT correct answer:
对于DH密码,您需要PEM格式的DH参数文件,您可以使用以下命令生成一个:
$ /usr/local/bin/openssl dhparam 2048 -out dhparams.pem
对于ECDHE密码,您需要为SSL上下文设置椭圆曲线 . 您可以使用pyOpenSSL检索系统上的可用曲线:
OpenSSL.crypto.get_elliptic_curves()
这给了我们正确的以下python代码:
from paste import httpserver
from OpenSSL import SSL
from OpenSSL import crypto
context = SSL.Context(SSL.SSLv23_METHOD)
context.use_privatekey_file("/Path/to/my/private.key")
context.use_certificate_chain_file("/Path/to/my/chain-cert.pem")
context.load_tmp_dh("/Path/to/my/dhparams.pem")
context.set_tmp_ecdh(crypto.get_elliptic_curve("prime256v1"))
context.set_options(SSL.OP_NO_SSLv2)
context.set_options(SSL.OP_NO_SSLv3)
context.set_options(SSL.OP_SINGLE_DH_USE)
context.set_cipher_list("EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:EDH+aRSA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4")
logger.debug("OPENSSL version: %s" % SSL.SSLeay_version(SSL.SSLEAY_VERSION))
httpserver.serve(app_logged, host=http_host, port=http_port, server_version=server_version, ssl_context=context, use_threadpool=True, threadpool_workers=15, request_queue_size=5)
2 回答
要获得DH密码(DHE-RSA -...)的支持,您需要有一个DH params文件并指定它:
要创建此类文件,您可以使用OpenSSL
要支持ECDH密码,您需要指定应使用哪条曲线 . 我没有支持它的pyOpenSSL版本,但根据documentation它应该是
我将把它留在这里,因为它也适用于内置库 .
由于上述答案和问题是关于pyOpenSSL,我知道这可能不是100%在正确的球场 .
但经过一些搜索后,为什么我得到
ssl.SSLError: [SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:1045)
没有任何细节,为什么会发生这种情况,这篇文章保存了我的一天..但我也认为有可能通过ssl
本地做(我敢肯定,可能使用OpenSSL但仍然认为这可能在这里有用) .