fun generateCertificate(
    file: File,
    algorithm: String = "SHA1withRSA",
    keyAlias: String = "mykey",
    keyPassword: String = "changeit",
    jksPassword: String = keyPassword,
    keySizeInBits: Int = 1024
): KeyStore

Generates simple self-signed certificate with keyAlias name, private key is encrypted with keyPassword, and a JKS keystore to hold it in file with jksPassword.

Only for testing purposes: NEVER use it for production!

A generated certificate will have 3 days validity period and 1024-bits key strength. Only localhost and domains are valid with the certificate.