Openssl Generate Csr With Extended Key Usage
- Openssl Generate Csr And Private Key
- Openssl Generate Csr With Extended Key Usage Calculator
- Use Openssl To Generate Key Pair
- Openssl Generate Key From Csr
- Use openssl to create an x509 self-signed certificate authority (CA), certificate signing request (CSR), and resulting private key with IP SAN and DNS SAN - create-certs.sh.
- X509v3 Key Usage: critical Digital Signature X509v3 Extended Key Usage: critical Code Signing. Ensure certificate validity. Each one of these certificate generation techniques have very specific use cases and one certificate request should not be used for all three use cases even though it is technically possible.
Online x509 Certificate Generator. CertificateTools.com offers the quickest and easiest way to create self-signed certificates, certificate signing requests (CSR), or create a root certificate authority and use it to sign other x509 certificates. We support multiple subject alternative names, multiple common names, all x509 v3 extensions, RSA and elliptic curve cryptography private keys. Generating CSR on Apache + OpenSSL/ModSSL/Nginx + Heroku To activate an SSL certificate you need to submit a CSR (Certificate Signing Request) on our site. CSR is a block of code with encrypted information about your company and domain name.
Openssl Generate Csr And Private Key
| # Define where to store the generated certs and metadata. |
| DIR='$(pwd)/tls' |
| # Optional: Ensure the target directory exists and is empty. |
| rm -rf '${DIR}' |
| mkdir -p '${DIR}' |
| # Create the openssl configuration file. This is used for both generating |
| # the certificate as well as for specifying the extensions. It aims in favor |
| # of automation, so the DN is encoding and not prompted. |
| cat >'${DIR}/openssl.cnf'<<EOF |
| [req] |
| default_bits = 2048 |
| encrypt_key = no # Change to encrypt the private key using des3 or similar |
| default_md = sha256 |
| prompt = no |
| utf8 = yes |
| # Speify the DN here so we aren't prompted (along with prompt = no above). |
| distinguished_name = req_distinguished_name |
| # Extensions for SAN IP and SAN DNS |
| req_extensions = v3_req |
| # Be sure to update the subject to match your organization. |
| [req_distinguished_name] |
| C = US |
| ST = California |
| L = The Cloud |
| O = Demo |
| CN = My Certificate |
| # Allow client and server auth. You may want to only allow server auth. |
| # Link to SAN names. |
| [v3_req] |
| basicConstraints = CA:FALSE |
| subjectKeyIdentifier = hash |
| keyUsage = digitalSignature, keyEncipherment |
| extendedKeyUsage = clientAuth, serverAuth |
| subjectAltName = @alt_names |
| # Alternative names are specified as IP.# and DNS.# for IP addresses and |
| # DNS accordingly. |
| [alt_names] |
| IP.1 = 1.2.3.4 |
| DNS.1 = my.dns.name |
| EOF |
| # Create the certificate authority (CA). This will be a self-signed CA, and this |
| # command generates both the private key and the certificate. You may want to |
| # adjust the number of bits (4096 is a bit more secure, but not supported in all |
| # places at the time of this publication). |
| # |
| # To put a password on the key, remove the -nodes option. |
| # |
| # Be sure to update the subject to match your organization. |
| openssl req |
| -new |
| -newkey rsa:2048 |
| -days 120 |
| -nodes |
| -x509 |
| -subj '/C=US/ST=California/L=The Cloud/O=My Company CA' |
| -keyout '${DIR}/ca.key' |
| -out '${DIR}/ca.crt' |
| # |
| # For each server/service you want to secure with your CA, repeat the |
| # following steps: |
| # |
| # Generate the private key for the service. Again, you may want to increase |
| # the bits to 4096. |
| openssl genrsa -out '${DIR}/my-service.key' 2048 |
| # Generate a CSR using the configuration and the key just generated. We will |
| # give this CSR to our CA to sign. |
| openssl req |
| -new -key '${DIR}/my-service.key' |
| -out '${DIR}/my-service.csr' |
| -config '${DIR}/openssl.cnf' |
| # Sign the CSR with our CA. This will generate a new certificate that is signed |
| # by our CA. |
| openssl x509 |
| -req |
| -days 120 |
| -in '${DIR}/my-service.csr' |
| -CA '${DIR}/ca.crt' |
| -CAkey '${DIR}/ca.key' |
| -CAcreateserial |
| -extensions v3_req |
| -extfile '${DIR}/openssl.cnf' |
| -out '${DIR}/my-service.crt' |
| # (Optional) Verify the certificate. |
| openssl x509 -in '${DIR}/my-service.crt' -noout -text |
| # Here is a sample response (truncate): |
| # |
| # Certificate: |
| # Signature Algorithm: sha256WithRSAEncryption |
| # Issuer: C = US, ST = California, L = The Cloud, O = My Organization CA |
| # Subject: C = US, ST = California, L = The Cloud, O = Demo, CN = My Certificate |
| # # .. |
| # X509v3 extensions: |
| # X509v3 Basic Constraints: |
| # CA:FALSE |
| # X509v3 Subject Key Identifier: |
| # 36:7E:F0:3D:93:C6:ED:02:22:A9:3D:FF:18:B6:63:5F:20:52:6E:2E |
| # X509v3 Key Usage: |
| # Digital Signature, Key Encipherment |
| # X509v3 Extended Key Usage: |
| # TLS Web Client Authentication, TLS Web Server Authentication |
| # X509v3 Subject Alternative Name: |
| # IP Address:1.2.3.4, DNS:my.dns.name |
| # |
Creating a new key, with a self-signed root CA
Openssl Generate Csr With Extended Key Usage Calculator
This should only be done once, in a clean directory. The key and certificate is needed for each app.
1. Generate root CA (private key and public key).
The -des3 option forces it to use a password. You don't want someone hijacking your root CA and signing stuff.
2. Add CA key to machine.
https://msdn.microsoft.com/en-us/library/ms733813%28v=vs.110%29.aspxSection: Installing a Certificate in the Trusted Root Certification Authorities Store
Create a new certificate
1. Create both a certificate signing request and a key.
Need to use an app-specific config file here, where 'CN=localhost.ssl'
2. Create a new certificate
Norton 360 key code generator. This also generates a rootCA.srl file, which I assume is only needed the first time, but is definitely needed.
3. Make off with your new files (server.key, server.csr, server.crt).
Renew a certificate
###1. Check if the certificate is expired