SSL证书如何去除私钥密码保护

Okay, let's break down how to handle the private key password (also called a passphrase) for an SSL certificate.
"Why is there a password?"
The password (passphrase) on the private key acts as an extra layer of security. If someone were to steal your SSL certificate file (`.crt` or `.pem`) and your private key file (`.key`), they wouldn't be able to use the certificate immediately. They would need to enter the password to access the private key's sensitive cryptographic material, thus preventing misuse even if the certificate itself is compromised.
"How to "Remove" the Password (Actually, How to Use the Key Without Entering the Password)"
You don't typically "remove" the password from the private key file itself, as this would mean anyone who gets the file can use it freely. Instead, you configure the software (web server, application server, etc.) that will use the certificate to store the password securely and provide it automatically when needed.
Here are the common methods, depending on your setup:
"1. Using OpenSSL Commands (If you have direct access and control)"
If you created the key with a password and now want to use it without entering the password every time, you can convert it to an "unprotected" private key format. "Warning:" This makes the private key insecure if the file is accessible to unauthorized users. Only do this if you fully understand the security implications and have restricted access

相关内容：

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有时候我们在生成证书的时候可以加入了密码保护。然后申请到证书安装到了web服务器。但是这样可能会带来麻烦。每次重启apache或者nginx的时候，都需要输入密码。那么SSL证书如何去除私钥密码保护。

生成钥匙server.key的同时生成证书请求文件server.csr

openssl req -new -newkey rsa:2048 -nodes -sha256 -out server.csr -keyout server.key

②设置安全密码（pass phrase）时，请记住它，因为此安全密码是用来保护私密私钥，你将需要私密私钥和证书才能启用SSL数字证书。】

然后提交上去的应该是

然后应该提交给ssl签发机构的是server.csr

How-To Remove The Password From a SSL Certificate Key File

openssl req -new -newkey rsa:2048 -nodes -keyout www.abc.com.key -out www.abc.com.csr
Generating a 2048 bit RSA private key
......................+++
.....................+++
writing new private key to 'www.abc.com.key'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) :CN
State or Province Name (full name) :ShanXi
Locality Name (eg, city) :Xi'an
Organization Name (eg, company) :snsyr
Organizational Unit Name (eg, section) :devops
Common Name (eg, fully qualified host name) :www.abc.com
Email Address :

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password :123456

注意上面的

A challenge password :123456

如此操作时候会生成2个文件：

会生成2个文件：

ll
total 8.0K
-rw-r--r-- 1 lex staff 1.1K Apr 11 09:49 www.abc.com.csr
-rw-r--r-- 1 lex staff 1.7K Apr 11 09:49 www.abc.com.key

尝试转换：

openssl rsa -in www.abc.com.key -out unencyred.www.abc.com.key
writing RSA key

我这里简单对比下文件：

sdiff www.abc.com.key unencyred.www.abc.com.key
-----BEGIN PRIVATE KEY-----                      |    -----BEGIN RSA PRIVATE KEY-----
MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDngV5qMRZfb |    MIIEpAIBAAKCAQEA54FeajEWX25h3W9lYELPafsG7uXJgsz0p6Q/xYx15kaIV
b2VgQs9p+wbu5cmCzPSnpD/FjHXmRohXLtFHknVLWyT1AF3Ar7E99RpVb9Kz9 |    R5J1S1sk9QBdwK+xPfUaVW/Ss/UWDoftynCZTXTixmSk88sCcnLf558P4wrN7
h+3KcJlNdOLGZKTzywJyct/nnw/jCs3tSgsdtMIZssV3Xs3xLzlvh9lja85yk |    HbTCGbLFd17N8S85b4fZY2vOcpIyiomXpKb5j85yehHW2Nj+HiqJHV85U6WZv
iZekpvmPznJ6EdbY2P4eKokdXzlTpZm/ephVRg/axBEIx8eXOKGJQr9eEdr1y |    VUYP2sQRCMfHlzihiUK/XhHa9cnWN8tc44+ExpglGqPIsaTSGTmlJyZVw5Ejp
y1zjj4TGmCUao8ixpNIZOaUnJlXDkSOm+/YPB2D4yVq9fkuT2qt3/anp8hbnb |    Dwdg+MlavX5Lk9qrd/2p6fIW527/XV8YUhU2odf9gaEp/xj3VUiLs2SbwNT80
XxhSFTah1/2BoSn/GPdVSIuzZJvA1PzTwVUiY54WGQqgagNvQvFKxqnA74YvC |    ImOeFhkKoGoDb0LxSsapwO+GLwjvHs2V9hTpiQIDAQABAoIBAGRrjZTqrhW/P
zZX2FOmJAgMBAAECggEAZGuNlOquFb8/3FnR06unZQVqwH4UpxRYm893ii2fh |    0dOrp2UFasB+FKcUWJvPd4otn4a/2axXtpghQ5fodWOBQSmwDGYfx8h/tRoym
rFe2mCFDl+h1Y4FBKbAMZh/HyH+1GjKZ2rvDviiRlzO4mu5VTxskeJiz3zj0H |    w74okZczuJruVU8bJHiYs9849B88NI9VqvS7z+Zt0ZIyIYsZPQTQHNAvl2HDY
j1Wq9LvP5m3RkjIhixk9BNAc0C+XYcNhAQ8mJFn5rxOSPLk4RN/7ewJgb8k6i |    JiRZ+a8Tkjy5OETf+3sCYG/JOoi5XVNkTGs6gnOQW31BL7YURau6lo0IiQ39i
U2RMazqCc5BbfUEvthRFq7qWjQiJDf2Io/FJZYxtx6aK56QzFRdgaV2xnkZla |    SWWMbcemiuekMxUXYGldsZ5GZWopiITnCenT6l+WRViD3sTnqzuIXbXCebemq
hOcJ6dPqX5ZFWIPexOerO4hdtcJ5t6apFwWP5yluecSc8c0Y8ftW7QwD9W3jM |    j+cpbnnEnPHNGPH7Vu0MA/Vt4zP6vWEcdAXl3PuBcK2RGE2kRrjnhX8/Wx7Rx
YRx0BeXc+4FwrZEYTaRGuOeFfz9bHtHHU/g6jojA8QKBgQD9kjdml+5ODPOv5 |    Oo6IwPECgYEA/ZI3ZpfuTgzzr+fB9OCXMGIJgb3E7We7lBTPCMjFTae9G5wSv
4JcwYgmBvcTtZ7uUFM8IyMVNp70bnBK+AZv/ZsjsVsgferY/mO97YHNW3pvkx |    /2bI7FbIH3q2P5jve2BzVt6b5MX3010pAueN2mDDdswZ9cMN1AbSLRaRsKVN7
XSkC543aYMN2zBn1ww3UBtItFpGwpU3skEcnbCr7SFPEzMD2WdplfCIk9WDcz |    J2wq+0hTxMzA9lnaZXwiJPVg3MxAqzBXrmuNRiIghSz6VVkTeYiIwfcCgYEA6
MFeua41GIiCFLPpVWRN5iIjB9wKBgQDpuQtvjjy57sikub61lERUlrSp30Xrz |    b448ue7IpLm+tZREVJa0qd9F682b8MnRF2uIOzCu2kBd3h5Fpg9/yawF2xMoT
ydEXa4g7MK7aQF3eHkWmD3/JrAXbEyhPvDaiXnzN4UJFvvYtNhh/Jb8nQ3Gzb |    ol58zeFCRb72LTYYfyW/J0Nxs25I5E5clkVXqZd+bqmW5fuM5Wlb8XIATOeiL
TlyWRVepl35uqZbl+4zlaVvxcgBM56Iv7/90wuAVOtAPJeB1Lo9w3CRnRQBCV |    dMLgFTrQDyXgdS6PcNwkZ0UAQlSJYFblGN980H8CgYEAqcr65eveWs05cBSUP
VuUY33zQfwKBgQCpyvrl695azTlwFJQ/0RPsBfmvss7m2Ys1gSmRDD9x3Fw43 |    7AX5r7LO5tmLNYEpkQw/cdxcONytgCW7u62r5PXHU6zr1HIoCklvcj/ly670X
Jbu7ravk9cdTrOvUcigKSW9yP+XLrvRfyAXqN/s4u4qnRcwsUMw1qcua/X3Y9 |    6jf7OLuKp0XMLFDMNanLmv192PcX0sxZmQBJV7H6xdEFdPB92W7hvjXBApiSx
zFmZAElXsfrF0QV08H3ZbuG+NcECmJLFDr3nwYT77WYxRwjplZgAzXglyQKBg |    58GE++1mMUcI6ZWYAM14JckCgYAdZZPlpRtIO5tq9J3jEtIBXa89ioKt5P+PK
k+WlG0g7m2r0neMS0gFdrz2Kgq3k/48qoyzx7oGbXvK+k8/jONlpK6Z/B4GFi |    8e6Bm17yvpPP4zjZaSumfweBhYhVdxPcGkxSTNncEee+ygYMv/+p/Zaofd+XL
E9waTFJM2dwR577KBgy//6n9lqh935cvr/+KmzsOfe2HUR5+JDuao+DbeOQzY |    ips7Dn3th1EefiQ7mqPg23jkM2I361TTJ8utf+c5cIcp1gBerqG5h3k/3ogk4
VNMny61/5zlwhynWAF6uobmHeT/eiCTg6RHW0kkbAoGBAIbhOhxLsm0+qoQBa |    1tJJGwKBgQCG4TocS7JtPqqEAWvzPvEewyEoorefhJFrxvmok6DOZM5dGpI82
8R7DISiit5+EkWvG+aiToM5kzl0akjzZydnz5k/+uTOhQZJS0ZudGF52smzWm |    8+ZP/rkzoUGSUtGbnRhedrJs1pl98CFqmYjMFUFDVo8+NSyGBiXiAuyy1Dh8U
IWqZiMwVQUNWjz41LIYGJeIC7LLUOHxQB7UX/Hr9Zm0aOHyeiNEo1HU3v1BDh |    F/x6/WZtGjh8nojRKNR1N79QQ4fGf45ff2aNqR2PquUr2s/pA0Y/Fw==
jl9/Zo2pHY+q5Svaz+kDRj8X                      |    -----END RSA PRIVATE KEY-----
-----END PRIVATE KEY-----                      <

可以看到大致的区别，其实到这里我也不知道是否生效了。为了测试是否变化

我再次将没有加密地进行解密看看

为了测试是不是有所变化：再次

openssl rsa -in unencyred.www.abc.com.key -out test.key
writing RSA key
这次对比unencyred.www.abc.com.key  test.key

发现没有任何变化：
diff test.key unencyred.www.abc.com.key

how-to-remove-private-key-password-from-pkcs12-container

https://serverfault.com/questions/515833/how-to-remove-private-key-password-from-pkcs12-container

上面只是一个方法，有待验证 哈