Nitrokey App is a handy software program that lets you secure your digital life. With this tool, you can log in to websites using a secure One Time Passwords (OTP), U2F, or ordinary static passwords. Logging in to computers and network services is done by using certificates. In addition, it helps you encrypt your e-mails with GnuPG, OpenPGP, S/MIME, or your favorite e-mail client. Optionally, you can encrypt your hard disks and files using TrueCrypt/VeraCrypt, GnuPG Tools, and more. In addition, it helps you protect your server certificates by using up to 60 ECC and 48 RSA keys with the Nitrokey HSM.