更新:问题底部的修复/工作代码。重新实施以使用wrap_socket()
代替SSL.Context()
。协商密码似乎不受ssl.PROTOCOL_
我有一个侦听端口8388的XML服务。该服务内置了自己的CA,并将为其管理界面上配置的任何客户端发出P12文件(我需要在我的连接中包含CA证书)
我已配置客户端并下载了P12文件;还从P12导出PEM文件(以便于调试)并导出服务器CA(这是一个Java密钥库)的PEM文件。
如果我使用openssl s_client
并将其提供给客户端证书/密钥和CA文件,那么事情似乎正常;即:验证返回:1 在下面的截断输出中。 openssl进程不会在服务器上生成任何证书错误(我的Python脚本也是如此)。从我读过的内容来看,这应该意味着证书一切正常且有效。
# openssl s_client -connect srv.domain.net:8388 -CAfile server_ca.pem -cert client_cert.pem -key client_key.pem
CONNECTED(00000003)
depth=1 ... emailAddress = ca@SERVERsystems.com
verify return:1
depth=0 ...CN = srv.domain.net
verify return:1
---
Certificate chain
0 s:/emailAddress=help@mydomain.net...CN=srv.domain.net
i:/C=US/...emailAddress=ca@SERVERsystems.com
---
Server certificate
-----BEGIN CERTIFICATE-----
MIIJRDCCByygAwIBAgIGAVGIopaoMA0GCSqGSIb3DQEBDQUAMIG...rV
-----END CERTIFICATE-----
subject=/emailAddress=help@mydomain.net...CN=srv.domain.net
issuer=/C=US/...emailAddress=ca@SERVERsystems.com
---
Acceptable client certificate CA names
/C=US/...emailAddress=ca@SERVERsystems.com
/.../CN=srv.domain.net
---
SSL handshake has read 3369 bytes and written 5705 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
Protocol : TLSv1.2
Cipher : ECDHE-RSA-AES256-GCM-SHA384
Session-ID: ...DF6572FA00D62D83CF0B1A82F
Session-ID-ctx:
Master-Key: ...7F685C0B163A7739C271E9722FC0554108175C4
Key-Arg : None
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1461337153
Timeout : 300 (sec)
Verify return code: 0 (ok)
---
我现在正在尝试使用相同的证书,密钥和CA文件将Python(2.7.9)脚本连接到XML服务,但我无法使其正常工作。 Python抱怨SSLv3错误,服务器说无法验证客户端。所以,连接有效,但握手,证书或密码或其他东西都不对。
我搜索了大量的示例和实现,这个似乎是最简单的一个,所以我开始使用它来创建模板。 SSL3不是我坚持使用的协议(POODLE),但它应该来自一个工作示例,所以我想做尽可能少的更改以使工作正常,然后从那里进行调整。谁知道我错在哪里?输出/错误/日志发布在最底层。
#!/usr/bin/python
# -*- coding: utf-8 -*-
import socket
import OpenSSL
from OpenSSL import *
import sys
serverName = sys.argv[1]
print "Using server : " + serverName
ctx = SSL.Context(SSL.SSLv3_METHOD)
ctx.use_privatekey_file('client_key.pem')
ctx.use_certificate_file('client_cert.pem')
ctx.load_verify_locations(cafile='server_ca.pem')
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((serverName, 8388))
sslSocket = socket.ssl(s)
print repr(sslSocket.server())
print repr(sslSocket.issuer())
print ("writing socket..")
sslSocket.write('<transaction><data>14</data></transaction>\n')
s.close()
Python输出:
Using server : localhost
Traceback (most recent call last):
File "./test3.py", line 29, in <module>
sslSocket = socket.ssl(s)
File "/usr/lib/python2.7/socket.py", line 64, in ssl
return _realssl.sslwrap_simple(sock, keyfile, certfile)
File "/usr/lib/python2.7/ssl.py", line 993, in sslwrap_simple
ssl_sock.do_handshake()
ssl.SSLError: [SSL: SSLV3_ALERT_BAD_CERTIFICATE] sslv3 alert bad certificate (_ssl.c:581)
上面连接后的服务器日志:
Apr 22 10:39:56 srv.domain.net ERROR server.auth [Thread-183,run:233] Couldn't validate the client certificate. Verify the validity and dates of the client cert.
Apr 22 10:39:56 srv.domain.net javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
Apr 22 10:39:56 srv.domain.net at sun.security.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:431)
Apr 22 10:39:56 srv.domain.net at com.xml.server.auth.run(auth.java:226)
Apr 22 10:39:56 srv.domain.net at java.lang.Thread.run(Thread.java:745)
工作代码:
#!/usr/bin/python
# -*- coding: utf-8 -*-
import socket
import ssl
import sys
import os
serverName = sys.argv[1]
print "Using server : " + serverName
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# ssl.PROTOCOL_xxx does not seem to affect negotiated cipher??
wrapper = ssl.wrap_socket(s,
ca_certs = "server_ca.pem",
certfile = "client_cert.pem",
keyfile = "client_key.pem",
cert_reqs=ssl.CERT_REQUIRED,
ssl_version=ssl.PROTOCOL_TLSv1)
wrapper.connect((serverName, 8388))
# some info on the connnection/cipher in use
print repr(wrapper.getpeername())
print repr(wrapper.cipher())
print repr(wrapper.getpeercert())
# send server command
print ("writing socket..")
wrapper.send ("<transaction><data>14</data></transaction>\n")
# read server reply
print "server reply: " + wrapper.recv(4096)
wrapper.close()
s.close()
答案 0 :(得分:0)
ctx.use_privatekey_file('client_key.pem')
ctx.use_certificate_file('client_cert.pem')
...
sslSocket = socket.ssl(s)
使用客户端证书创建SSL上下文时,不要在SSL连接中使用此上下文。这意味着不会发送客户端证书,服务器会相应地抱怨。
使用客户端证书的一种更简单的方法是使用certfile
的{{1}}和keyfile
参数,请参阅the documentation。