/usr/lib/jvm/java-21-openjdk-crac/bin/keytool --help

From openjdk-crac-21 21.0.13.9-r0 (enterprise-packages), captured 2026-11-08 by running keytool --help (exit 0). permalink

Key and Certificate Management Tool

Commands:

 -certreq            Generates a certificate request
 -changealias        Changes an entry's alias
 -delete             Deletes an entry
 -exportcert         Exports certificate
 -genkeypair         Generates a key pair
 -genseckey          Generates a secret key
 -gencert            Generates certificate from a certificate request
 -importcert         Imports a certificate or a certificate chain
 -importpass         Imports a password
 -importkeystore     Imports one or all entries from another keystore
 -keypasswd          Changes the key password of an entry
 -list               Lists entries in a keystore
 -printcert          Prints the content of a certificate
 -printcertreq       Prints the content of a certificate request
 -printcrl           Prints the content of a CRL file
 -storepasswd        Changes the store password of a keystore
 -showinfo           Displays security-related information
 -version            Prints the program version

Use "keytool -?, -h, or --help" for this help message
Use "keytool -command_name --help" for usage of command_name.
Use the -conf <url> option to specify a pre-configured options file.

Options (30)

Option	Description	Source
`-certreq`	Generates a certificate request	help + man
`-changealias`	Commands for Displaying Security-related Information:	help + man
`-delete`	Deletes an entry	help + man
`-exportcert`	Commands for Displaying Data:	help + man
`-genkeypair`	Generates a key pair	help + man
`-genseckey`	Generates a secret key	help + man
`-gencert`	Generates certificate from a certificate request	help + man
`-importcert`	Imports a certificate or a certificate chain	help + man
`-importpass`	Commands for Importing Contents from Another Keystore:	help + man
`-importkeystore`	Imports one or all entries from another keystore	help + man
`-keypasswd`	Changes the key password of an entry	help + man
`-list`	Lists entries in a keystore	help + man
`-printcert`	Prints the content of a certificate	help + man
`-printcertreq`	Prints the content of a certificate request	help + man
`-printcrl`	Commands for Managing the Keystore:	help + man
`-storepasswd`	Changes the store password of a keystore	help + man
`-showinfo`	Commands for Displaying Program Version:	help + man
`-version`	The -v option can appear for all commands except --help.	help + man
`-storetype` storetype	This qualifier specifies the type of keystore to be instantiated. (in the manual page but not in --help)	man
`-keystore` keystore	The keystore location. (in the manual page but not in --help)	man
`-cacerts` cacerts	Operates on the cacerts keystore . (in the manual page but not in --help)	man
`-storepass` :env	The password that is used to protect the integrity of the keystore. (in the manual page but not in --help)	man
`-providername` name	Used to identify a cryptographic service provider's name when listed in the security properties file. (in the manual page but not in --help)	man
`-addprovider` name	Used to add a security provider by name (such as SunPKCS11) . (in the manual page but not in --help)	man
`-providerclass` class	Used to specify the name of a cryptographic service provider's master class file when the service provider isn't listed in the security properties file. (in the manual page but not in --help)	man
`-providerpath` list	Used to specify the provider classpath. (in the manual page but not in --help)	man
`-providerarg` arg	Used with the -addprovider or -providerclass option to represent an optional string input argument for the constructor of class name. (in the manual page but not in --help)	man
`-protected` true\|false	Specify this value as true when a password must be specified by way of a protected authentication path, such as a dedicated PIN reader. (in the manual page but not in --help)	man
`-ext` name{:critical	Denotes an X.509 certificate extension. (in the manual page but not in --help)	man
`-conf` file	Specifies a pre-configured options file. (in the manual page but not in --help)	man

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.