我使用pyOpenSSL
创建X509证书。我需要将此证书导入Java JKS密钥库,以使其可用于我的Java应用程序。只要我没有在证书中添加subjectAltName
扩展名,这项工作正常。如果证书具有备用主题集,则导入JKS密钥库失败:
root@51561a8a1e01:~# /opt/oracle/java/jdk64-1.8.0_92/bin/keytool -keystore keystore -storepass changeit -noprompt -importcert -alias example -file certificate.crt -v
keytool error: java.lang.Exception: Input not an X.509 certificate
java.lang.Exception: Input not an X.509 certificate
at sun.security.tools.keytool.Main.doCommands(Main.java:1009)655)
at sun.security.tools.keytool.Main.main(Main.java:336)
root@51561a8a1e01:~#
如果我在命令行上使用OpenSSL打印此证书,我会收到此输出:
root@51561a8a1e01:~# openssl x509 -in certificate.crt -text -noout
Certificate:
Data:
Version: 1 (0x0)
Serial Number: 0 (0x0)
Signature Algorithm: sha256WithRSAEncryption
Issuer: OU=example.com, CN=my-server.example.com, O=example.com
Validity
Not Before: Aug 26 12:03:03 2016 GMT
Not After : Aug 25 12:03:03 2021 GMT
Subject: OU=example.com, CN=my-server.example.com, O=example.com
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
Modulus:
00:cc:a7:53:5a:38:...:11:2f
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Alternative Name:
DNS:localhost
Signature Algorithm: sha256WithRSAEncryption
ab:51:12:fb:a6:a6:...:0d:4b
那证书显然是有效的。根据{{3}},Java 8 keytool应该支持SubjectAlternativeName
扩展名。
当我尝试使用keytool本身生成所有内容时 - 这似乎有效 - 我注意到keytool生成的证书有第二个扩展名X509v3 Subject Key Identifier
:
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 1510484556 (0x5a082a4c)
Signature Algorithm: sha256WithRSAEncryption
Issuer: O=example.com, OU=example.com, CN=my-server.example.com
Validity
Not Before: Aug 26 12:52:43 2016 GMT
Not After : Nov 24 12:52:43 2016 GMT
Subject: O=example.com, OU=example.com, CN=my-server.example.com
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
Modulus:
00:99:b6:b1:11:a6:...:7b:39
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Alternative Name:
DNS:localhost
X509v3 Subject Key Identifier:
66:75:AD:7A:A5:19:AB:43:DE:55:E4:A7:4F:C2:3D:53:55:49:CE:48
Signature Algorithm: sha256WithRSAEncryption
50:7c:fe:c8:5d:1b:...:da:27
我是否还需要使用pyOpenSSL
将此扩展程序添加到我的证书中。但是正确的价值是什么?!
答案 0 :(得分:1)
好吧,在写完这个问题的所有内容后,我注意到用pyOpenSSL
生成的证书与keytool证书之间存在第二个区别。 keytool证书表示Version: 3 (0x2)
,而另一个表示Version: 1 (0x0)
。
我对X509规范的了解不多,但由于扩展名都以X509v3
为前缀,我猜这种扩展支持不适用于版本1证书。
在调整我的python代码以将版本设置为3(实际上是2版本为0)时,导入到keytool按预期工作:
_req = OpenSSL.crypto.X509Req()
_req.set_version(2)
...