Similar to Privacy-Enhanced_Mail
- Privacy-Enhanced MailPrivacy-Enhanced Mail
- Automated Certificate Management EnvironmentAutomatic Certificate Management Environment
 - Counter mode with Cipher-block chaining Message authentication code ProtocolCCMP (cryptography)
 - DKIMDomainKeys Identified Mail
 - DNSCryptDNSCrypt
 - HTTP/1.1 UpgradeヘッダーHTTP/1.1 Upgrade header
 - HTTPSHTTPS▲1 trends
 - I2PI2P
- IPsecIPsec
 - JSON Web EncryptionJSON Web Encryption
 - Key Management Interoperability ProtocolKey Management Interoperability Protocol
 - OMEMOOMEMO
 - Online Certificate Status ProtocolOnline Certificate Status Protocol
 - QUICQUIC
 - Secure HyperText Transfer ProtocolSecure Hypertext Transfer Protocol
 - Security AssociationSecurity association
 - SignalプロトコルSignal Protocol
 - Simple Authentication and Security LayerSimple Authentication and Security Layer
 - SSH File Transfer ProtocolSSH File Transfer Protocol
- Temporal Key Integrity ProtocolTemporal Key Integrity Protocol
 - Template:Tor onion servicesTemplate:Tor onion services
 - Wi-Fi Protected AccessWi-Fi Protected Access
 - Wi-Fi Protected SetupWi-Fi Protected Setup
 - Wired Equivalent PrivacyWired Equivalent Privacy
- X.509X.509
 - 暗号メッセージ構文Cryptographic Message Syntax
- Onionドメインの一覧
 - オニオンルーティングOnion routing