Crypto-based PKI authentication and communication supporting IPv4/IPv6 dual-stack and leveraging market drivers such as IoT and 5G at scale using IRP (Identity Registration Protocol) - IANA allocated port 4604. Crypto-based PKI authentication and and extending out to IPv6 and ultimately taking advantage of market drivers such as IoT and 5G to allow deployment at scale. - SixMail - Windows/Mac/iOS/Android S/Mime based email signing and encryption apps and Outlook plug-ins with LDAP/AD integration and automated certification handlin.g - SixToken - Mobile app/web/Windows/MacOS/Android which securely obtains key material and a phone and uses it for cryptographic authentication via push notification. - Sixscape Certificate Manager - full featured Certificate Authority to create and manage a variety of X.509 compliant digital certificates. - SixWallet - IRP and LDAP client for IRP compliant CA's for creation of CSR's and submission to CA's - SixEscrow – secure key escrow and management