Order matters; each subcomponent must appear in the designated order. When you create a Java keystore you start by creating a. Subsequent keytool commands must use this same alias to refer to the entity. Thus, you could simply have the following: keytool -genkey In this case, a keystore entry with alias mykey is created, with a newly-generated key pair and a certificate that is valid for 90 days. For a full list of keytool commands, you can visit the following.
If the private key password is different from the keystore password, then the entry will only be cloned if a valid keypass is supplied. This is going to be a file on your filesystem, and I'm going to name mine privateKey. Importing a New Trusted Certificate When importing a new trusted certificate, alias must not yet exist in the keystore. There is no need to spend extra cash buying a trusted certificate when you are just developing or testing an application. Basically, public key cryptography requires access to users' public keys.
In this case, the alias should not already exist in the keystore. The value is a concatenation of a sequence of sub values. If the destination alias already exists in the destination keystore, the user is prompted to either overwrite the entry, or to create a new entry under a different alias name. Getting Help Lists the basic commands and their options. Version 2 certificates are not widely used.
If that attempt fails, the user will be prompted for a password. In this case, keytool does not print out the certificate and prompt the user to verify it, because it is very hard if not impossible for a user to determine the authenticity of the certificate reply. If keypass is not provided at the command line, and is different from the password used to protect the integrity of the keystore, the user is prompted for it. The first certificate in the chain contains the public key corresponding to the private key. The validity period chosen depends on a number of factors, such as the strength of the private key used to sign the certificate or the amount one is willing to pay for a certificate. You import a certificate for two reasons: Tag Description 1. This certificate chain and the private key are stored in a new keystore entry identified by alias.
If the alias does not exist in the keystore, keytool creates a trusted certificate entry with the specified alias and associates it with the imported certificate. Keystore Location Each keytool command has a -keystore option for specifying the name and location of the persistent keystore file for the keystore managed by keytool. The alias can be anything, and is case-insensitive. Tag Description Subject Public Key Information This is the public key of the entity being named, together with an algorithm identifier which specifies which public key crypto system this key belongs to and any associated key parameters. When keys are first generated see the command , the chain starts off containing a single element, a self-signed certificate.
This old name is still supported in this release and will be supported in future releases, but for clarity the new name, -genkeypair, is preferred going forward. An alias is specified when you add an entity to the keystore using the command to generate a secret key, command to generate a key pair public and private key or the command to add a certificate or certificate chain to the list of trusted certificates. Serial Number The entity that created the certificate is responsible for assigning it a serial number to distinguish it from other certificates it issues. The alias is a name that you will use later when signing your app. The default key size for any algorithm is 1024 bits. If that attempt fails, the user will be prompted for a password. Warning Regarding Certificate Conformance The Internet standard has defined a profile on conforming X.
For non self-signed certificates, the authorityKeyIdentifier is always created. Wraps the public key into an X. I finally decided to use a Java licensing tool named TrueLicense to assist with the software licensing, and TrueLicense quickly led me down the path of learning about the Java keytool and keystore path. Note: it is not required that you execute a -printcert command prior to importing a certificate, since before adding a certificate to the list of trusted certificates in the keystore, the -importcert command prints out the certificate information and prompts you to verify it. This is the certificate that authenticates janes public key. Note: This option can be used independently of a keystore. Read Common Options for the grammar of -ext.
There is a built-in default implementation, provided by Oracle. The command reads the request from infile if omitted, from the standard input , signs it using alias's private key, and output the X. If a keystore does not exist, it is created. Changing Your Distinguished Name but Keeping your Key Pair Suppose your distinguished name changes, for example because you have changed departments or moved to a different city. It is useful for adjusting the execution environment or memory usage. The hour should always be provided in 24 hour format. When retrieving information from the keystore, the password is optional; if no password is given, the integrity of the retrieved information cannot be checked and a warning is displayed.
You can call the person who sent the certificate, and compare the fingerprint s that you see with the ones that they show or that a secure public key repository shows. Certificates were invented as a solution to this public key distribution problem. This certificate will be valid for 180 days, and is associated with the private key in a keystore entry referred to by the alias business. If destkeypass is not provided, the destination entry will be protected with the source entry password. This entry is placed in the keystore named.