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OpenSSL self-built CA signed by default is a single domain name certificate, because there are multiple HTTPS domain names on a single server, sometimes you want a certificate to solve all problems, if the same top-level domain name, then the universal domain name (wildcard) certif
articles in the mention, but not clearly specified, will let the reader confused. 强烈推荐使用OpenSSL的读者阅读x509v3_config-x509 V3 Certificate Extension configuration format
recognises, the actual combat now!OpensslI am using Ubuntu, so there may be different operating system OpenSSL configuration file path is not the same situation, please readers themselves accord
/openssl.cnfAfter you generate the CSR file and give it to the CA to sign the certificate, you will be prompted on the screen to enter the required personal information in step-byThis command will generate a certificate request, of course, using the previously generated key Ca.key file, here will generate a new file CA.CSR, a
private key, 2048 bit long modulus................................................+++.........................+++e is 65537 (0x10001)Enter pass phrase for ./demoCA/private/cakey.pem:Verifying - Enter pass phrase for ./demoCA/private/cakey.pem:
Generate CA certificate request
To obtain a CA root certificate, we need to make a
I. Introduction of OpenSSL
OpenSSL is currently the most popular SSL cipher library tool that provides a common, robust, and fully functional suite of tools to support the implementation of the SSL/TLS protocol.Official website: https://www.openssl.org/source/ component cipher algorithm library key and certificate encapsulation management function SSL Communicati
any directory, any folder name
/home/gouxu/gx/key/ 2. Go to the newly created folder key
cd/home/gouxu/gx/key/ 3. Generate CA Private key
OpenSSL genrsa-out Ca.key 2048
Parameter description:
GENRSA: Generate RSA secret key;
The key file generated by-out Ca.key is Ca.key;
2048: Secret key length is 2048. 4. Generating a CA's certificate with the CA private key
OpenSSL
:
12345
Using configuration from /usr/lib/ssl/openssl.cnfCheck that the request matches the signatureSignature okThe stateOrProvinceName field needed to be the same in theCA certificate (GuangDong) and the request (GuangDong)
touch index.txt serial:Create two initial files in the CA directory:
12
# touch index.txt serial# echo 01 >
In HTTPS learning note two, the concept of digital certificates has been clarified, composed and how the client validates the server-side certificate during the HTTPS connection process. This chapter describes how to use the OpenSSL library to create a key file, and to generate a root CA and issue a child certificate. Learn the main reference Official document: h
a certificate is generated, a private key is usually used to generate a certificate request with the private key, and then use the root certificate of the Certificate Server to issue the certificate.3.
enbanced mail, Privacy Enhancement mail) encoding format to save the private key. Echo. echo 3. generate the root certificate issuing application Ca. csropenssl req-New-key ca. key. PEM-out ca. CSR-subj "/C = Cn/ST = BJ/L = BJ/o = zlex/ou = zlex/CN = * .zlex.org": The meanings of parameters are as follows ::: req generates the certificate issuance application command. :-New indicates a new
of a third-party authority is not used for authentication and serves as the CA.
Download an OpenSSL software online
1. Create a private key:
D:/OpenSSL> OpenSSL genrsa-out Ca/ca-key.pem 1024
2. Create a certificate request:
Note: This step prompts that the
is, the SSL protocol can be activated to implement encrypted transmission of data between the client and the server to prevent data information leakage. This ensures the security of the information transmitted by both parties, and the user can verify whether the website he or she accesses is authentic and reliable through the server certificate.An SSL website is different from a common web site. It uses the "HTTPS" protocol instead of the common "HTTP" protocol. Therefore, its URL (Uniform Reso
First, you need to understand some basic concepts before installing
1. Certificates used by SSL can be self-generated or signed by a commercial ca such as Verisign or thawte.
2. Certificate concept: First, you must have a root certificate, and then use the root certificate to issue the server certificate and custom
The OpenSSL Certificate Action command generates a self signed certificate# Generate a key, your private key, OpenSSL will prompt you to enter a password, you can enter, you can not lose,# Enter the words, each time you use this key to enter the password, security, or there should be a password protection >
to other certificates, for example, WEB certificate authentication$ Openssl genrsa-des3-out/etc/ssl/private/CAS. key 2048$ Chmod 700/etc/ssl/private/CA. key 20486. Fill in the CA certificate application file (CSR)$ Openssl req-new-key/etc/ssl/private/CA. key-out/tmp/CA. rcSome information will pop up later. Enter the
OpenSSL genrsa-out server.key 1024 (no password required)OpenSSL Req-new-key server.key-out SERVER.CSRCat SERVER.CSRPaste the above text into http://dc2.sankuai.info/certsrv/request Advanced Certificate request---->web Server certificate
Use openssl in linux to generate a csrcrchloroform Certificate
This article mainly draws on and references the content of the following two addresses, then tests and runs on the machine, and makes the following records.
Create the test directory mkdir/tmp/create_key/ca cd/tmp/create_key/
Certificate file generation:
I. Server Side
1. Generate the server-side priv
default location for storing newly issued certificates
Certificate = $ DIR/cacert. pem # specify the CA certificate
Serial = $ DIR/serial # specify the file to store the current serial number
CRL = $ DIR/CRl. pem # current CRL
Private_key = $ DIR/private/cakey. pem # private key of CA
Randfile = $ DIR/private/. Rand # specifies a seed file used for reading and writing the random key.
When we need to use th
profiles for development and distribution, respectively. Similarly, there are two types of push certificates:Development App,app server that is signed by developer provisioning Profile must send a notification using a developer certificate.Production App,app Server published according to ad hoc or App store must use Production certificate. If they are confused, the app will not receive a push notification.This tutorial uses only development certifica
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