Similar to Stunnel
Botan
Botan (programming library)GnuTLS
GnuTLSHashcat
HashcatOpenVPN
OpenVPNAdBlock
AdBlockFirestarter
Firestarter (firewall)FreeS/WAN
FreeS/WANInitng
InitngClaws Mail
Claws MailEnigmail
EnigmailFileVault
FileVaultGNU Privacy Guard
GNU Privacy GuardGpg4win
Gpg4winGPGTools
Hamachi
LogMeIn HamachiJitsi
JitsiJohn the Ripper
John the RipperKeePass
KeePassKeePassX
KeePassXKeePassXC
KeePassXCKGpg
KGPGKontact
KontactLair (匿名掲示板)
LibreSSL
LibreSSLNetwork Security Services
Network Security ServicesOpenSSH
OpenSSHOpenSSL
OpenSSLOpenswan
Openswan