OpenSSL "req" Command

Q

Where to find tutorials on using OpenSSL "req" commands for certificate request and certificate generation?

✍: FYIcenter.com

A

Here is a collection of tutorials on using OpenSSL "req" command compiled by FYIcenter.com team to generate Certificate Signing Request (CSR) and sign CSR.

OpenSSL "req" Command Options

OpenSSL "req -new" - Generate New CSR

OpenSSL "req -text" - Print CSR in Text

OpenSSL CSR File Structure and Components

OpenSSL "req -text" Output and CSR Components

OpenSSL "req -verify" - Verify Signature of CSR

OpenSSL "req -pubkey" - Extract Public Key from CSR

OpenSSL "req -newkey" - Generate Private Key and CSR

OpenSSL "req -new -x509" - Generate Self-Signed Certificate

OpenSSL "x509 -text" - View Self-Signed Certificate in Text

OpenSSL "verify" - Validate Self-Signed Certificate

OpenSSL "req -x509 -newkey" - Generate Private Key and Certificate

OpenSSL Self-Signed Certificate Components

OpenSSL "req -x509" - Sign My Own CSR

OpenSSL "req -x509 -days" - Longer Self-Signed Certificate

OpenSSL "req -x509 -set_serial" - Certificate Serial Number

OpenSSL "req -x509 -md5" - MD5 Digest for Signing

OpenSSL "req -x509" - Sign CSR with Different Key

OpenSSL Not Validate Signature in Self-Signed Certificate

OpenSSL "req -config" - Using Configuration File

OpenSSL "req" - distinguished_name Configuration Section

OpenSSL "req" - "prompt=no" Mode

OpenSSL "req" - "prompt=yes" Mode

OpenSSL "req" - "prompt=yes" Mode with DN Validations

OpenSSL "req" - "prompt=yes" Mode with DN Defaults

OpenSSL "req new -batch" - Using DN Default Values Only

OpenSSL "req -new" - "no objects specified in config file" Error

OpenSSL "req -new" - Repeating DN Fields

OpenSSL "req -new" - DN Fields for Personal Certificates

OpenSSL "req" - X509 V3 Extensions Configuration Options

OpenSSL "req -new -reqexts" - Specify CSR V3 Extensions

OpenSSL "req -new -reqexts" - Test CSR V3 Extensions

OpenSSL "req -x509 -extensions" - Specify Self-Signed Certificate V3 Extensions

OpenSSL "req -x509 -extensions" - Test Self-Signed Certificate V3 Extensions

OpenSSL "req -new" - CSR Attributes

OpenSSL "req" - Good Sample openssl.conf

⇒ OpenSSL "req" Command Options

⇐ OpenSSL "dsa -aes*" - Re-Encrypt DSA Keys

⇑⇑ OpenSSL Tutorials

2016-12-15, 5494👍, 0💬

OpenSSL "req" Command Options
What can I use OpenSSL "req" command for? What are options supported by the "req" command? OpenSSL "req" command is a certificate request and certificate generating utility. It can be used to generate Certificate Signing Request (CSR) and sign CSR. Here are options supported by the "req" command: C:... 2016-12-14, 4466👍, 0💬

OpenSSL "req -text" - Print CSR in Text
How to print CSR information in text format using OpenSSL "req -text" command? If you want to see contents of a CSR file in text format, you can use the OpenSSL "req -text" command as shown below: C:\Users\fyicenter>\loc al\openssl\openssl.exeOpenSSL> req -in my_rsa.csr -text -noout Ce... 2016-12-04, 2409👍, 0💬

OpenSSL CSR File Structure and Components
What is the OpenSSL CSR file structure and components? By default, CSR (Certificate Signing Request) files generated by the OpenSSL "req" command follow these rules: 1. CSR files are stored in PEM (Privacy-enhanced mail) format, which uses DER (Distinguished Encoding Rules) standard to serialize dat... 2018-01-19, 2177👍, 1💬

💬 2018-01-19 guest: req -new -newkey rsa: 1024 -nodes -keyout mykey.pe>m -out myreq.pem -config openssl-san.cnf

OpenSSL "req -new" - Generate New CSR
How to generate a new CSR (Certificate Signing Request) using OpenSSL "req -new" command? I have an RSA private key (including public key) ready. If you have a pair of RSA private key and public key, and you want to generate CSR (Certificate Signing Request) to represent your personal identity or se... 2016-12-14, 2010👍, 0💬

OpenSSL "dsa" - Open Encrypted DSA Keys
How to open an encrypted DSA key file using OpenSSL "dsa" command? I was told the key file is DES encrypted and I know the password. If you are trying to open a password (encrypted) DSA key file using the "dsa" command, you will be prompted for the password as shown below: C:\Users\fyicenter>... 2016-12-18, 1404👍, 0💬

OpenSSL "dsa -aes*" - Re-Encrypt DSA Keys
How to re-encrypt a DSA key file using OpenSSL "dsa" command? I want to change the encryption password, and maybe change the encryption algorithm. If you want to encrypt an existing DSA key file again, you can use the "dsa -aes*" command as shown below: C:\Users\fyicenter>\loc al\openssl\opens... 2016-12-15, 1383👍, 0💬

OpenSSL "req -text" Output and CSR Components
How to identify CSR components in OpenSSL "req -text" command output? OpenSSL "req -text" command output displays all components in a CSR with proper labels to help you identify each component. Below is a good example of the "req -text" command output: C:\Users\fyicenter>\loc al\openssl\openss... 2016-11-23, 1265👍, 0💬

OpenSSL "dsaparam 512" - Generate DSA Short Keys
How to generate a new DSA key pair with a shorter key size using OpenSSL "gendsa" command? If you need a new DSA key pair with a shorter key size for testing purpose, you can use the OpenSSL "gendsa" command as shown below: C:\Users\fyicenter>\loc al\openssl\openssl.exeOpenSSL> dsapara... 2016-12-24, 1077👍, 0💬

OpenSSL "gendsa 10240" - Generate DSA Long Keys
How to generate a new DSA key pair with a longer key size using OpenSSL "gendsa" command? If you need a new DSA key pair with a longer key size for testing purpose, you can use the OpenSSL "gendsa" command as shown below: C:\Users\fyicenter>time The current time is: 20:06:19.66 C:\Users\fyice... 2016-12-24, 1027👍, 0💬

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