com.r3corda.core.crypto / X509Utilities / addOrReplaceKey

# addOrReplaceKey

`fun KeyStore.addOrReplaceKey(alias: String, key: Key, password: CharArray, chain: Array<Certificate>): Unit`

Helper extension method to add, or overwrite any key data in store

### Parameters

`alias` - name to record the private key and certificate chain under
`key` - cryptographic key to store
`password` - password for unlocking the key entry in the future. This does not have to be the same password as any keys stored, but for SSL purposes this is recommended.
`chain` - the sequence of certificates starting with the public key certificate for this key and extending to the root CA cert