vRealize Code Stream uses SSL to ensure secure communication among components. Passphrases are used for secure database storage. vRealize Code Stream CertificatesvRealize Code Stream uses SSL certificates for secure communication. You can obtain certificates from an internal or external certificate authority, or generate self-signed certificates during the deployment process for each component. Extracting Certificates and Private KeysCertificates that you use with the virtual appliances must be in the PEM file format. Security PassphrasevRealize Code Stream uses security passphrases for database security. A passphrase is a series of words used to create a phrase that generates the encryption key that protects data while at rest in the database. Parent topic: Preparing for Installation