windows下使用openssl生成证书

1:openssl下载,

2:安装vs2010,并安装

3:下载perl,,并安装。

二:安装openssl

1:解压到系统盘C:\openssl-0.9.8v

2、配置WIN32环境

打开CMD命令行,进入C:\openssl-0.9.8v目录,执行命令

perl Configure VC-WIN32

注意区分大小写

3、进入VC BIN目录,配置VC环境变量

进入VS安装路径VC/Bin目录下,运行:

VCVARS32.BAT

设置环境变量。

4、返回OpenSSL目录,创建makefile文件

ms\do_ms

该命令不执行汇编语言编译,如报告文末错误,可以尝试ms\do_masm(使用汇编语言)、ms\do_nasm、ms\do_nt等,这几个配置文件是针对不同的系统配置写的批处理。

5、在Openssl目录下,执行编译

nmake -f ms\ntdll.mak

最终编译动态库完成后,输出都在out32dll目录下:包括可执行文件、两个dll 和两个lib文件: libeay32.dll, libeay32.lib, ssleay32.dll, ssleay32.lib,如果使用VS/VC编程只需按照下文的方法进行即可,如果需要使用openssl命令,还需要在系统环境变量path中增加C:\openssl-0.9.8v\out32dll路径,因为openssl.exe就在该目录下,声明后可以直接在命令行中使用openssl命令。

三:生成证书

1、添加配置文件(openssl.cnf)的环境变量:OPENSSL_CONF。配置文件可从OpenSSL解压后根目录下的apps目录下拷贝,再自行修改配置。也可以在openssl命令中用-config指定配置文件的位置。

我的配置文件:

windows下使用openssl生成证书

#
# SSLeay example properties file.
# This is mostly being used for generation of certificate requests.
#

RANDFILE = .rnd

####################################################################
[ ca ]
default_ca = CA_default # The default ca section

####################################################################
[ CA_default ]

dir = C:\\CA # Where everything is kept
certs = $dir\\certs # Where the issued certs are kept
crl_dir = $dir\\crl # Where the issued crl are kept
database = $dir\\index.txt # database index file.
new_certs_dir = $dir\\newcerts # default place for new certs.

certificate = $dir\\cacert.pem # The CA certificate
serial = $dir\\serial # The current serial number
crl = $dir\\crl.pem # The current CRL
private_key = $dir\\private\\cakey.pem # The private key
RANDFILE = $dir\\private\\private.rnd # private random number file

x509_extensions = x509v3_extensions # The extentions to add to the cert
default_days = 365 # how long to certify for
default_crl_days = 30 # how long before next CRL
default_md = md5 # which md to use.
preserve = no # keep passed DN ordering

# A few difference way of specifying how similar the request should look
# For type CA, the listed attributes must be the same, and the optional
# and supplied fields are just that :-)
policy = policy_match

# For the CA policy
[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional

# For the ’anything’ policy
# At this point in time, you must list all acceptable ’object’
# types.
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional

####################################################################
[ req ]
default_bits = 1024
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes

[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_min = 2
countryName_max = 2

stateOrProvinceName = State or Province Name (full name)

localityName = Locality Name (eg, city)

0.organizationName = Organization Name (eg, company)

organizationalUnitName = Organizational Unit Name (eg, section)

commonName = Common Name (eg, your website’s domain name)
commonName_max = 64

emailAddress = Email Address
emailAddress_max = 40

[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20

[ x509v3_extensions ]

<完>

$dir下建立一系列目录和文件:

windows下使用openssl生成证书

现在可以使用openssl命令来生成证书了:

1.首先要生成服务器端的私钥(key文件):
openssl genrsa -des3 -out server.key 1024
运行时会提示输入密码,此密码用于加密key文件(参数des3便是指加密算法,当然也可以选用其他你认为安全的算法.),以后每当需读取此文件(通过openssl提供的命令或API)都需输入口令.如果觉得不方便,也可以去除这个口令,但一定要采取其他的保护措施!
去除key文件口令的命令:
openssl rsa -in server.key -out server.key

2.openssl req -new -key server.key -out server.csr -config openssl.cnf
生成Certificate Signing Request(CSR),生成的csr文件交给CA签名后形成服务端自己的证书.屏幕上将有提示,依照其指示一步一步输入要求的个人信息即可.

3.对客户端也作同样的命令生成key及csr文件:
openssl genrsa -des3 -out client.key 1024
openssl req -new -key client.key -out client.csr -config openssl.cnf

4.CSR文件必须有CA的签名才可形成证书.可将此文件发送到verisign等地方由它验证,要交一大笔钱.自己做CA.
openssl req -new -x509 -keyout ca.key -out ca.crt -config openssl.cnf

5.用生成的CA的证书为刚才生成的server.csr,client.csr文件签名:
Openssl ca -in server.csr -out server.crt -cert ca.crt -keyfile ca.key -config openssl.cnf
Openssl ca -in client.csr -out client.crt -cert ca.crt -keyfile ca.key -config openssl.cnf

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