Similar to I2P
Kontact
KontactLibreSSL
LibreSSLLUKS
Linux Unified Key SetupMicrosoft Outlook
Microsoft OutlookNaCl (ソフトウェア)
NaCl (software)Network Security Services
Network Security ServicesOpenSSH
OpenSSHOpenSSL
OpenSSL▲1 trendsOpenswan
OpenswanOpenVPN
OpenVPNOphcrack
OphcrackPeer to Peer
Peer-to-peerPoderosa
Pretty Good Privacy
Pretty Good PrivacyProton VPN
Proton VPNProVerif
ProVerifPuTTY
PuTTY▼-1 trendsQubes OS
Qubes OSRiseup
RiseupRLogin
S/MIME
S/MIMESecure Shell
Secure ShellSecurity Support Provider Interface
Security Support Provider InterfaceSignal (メッセージングアプリ)
Signal (messaging app)Silent Circle
Silent Circle (software)SSLeay
SSLeayStrongSwan
StrongSwanStunnel
Stunnel