EntityQ338574· pop 5· linked from 187 articlesCellular Message Encryption AlgorithmSign in to saveseverely insecure block cipher, designed to encrypt the control channel (rather than the voice data) for cellular telephone communication in the United StatesConnectionsencryptionEntitySecure channelEntityUnited StatesCountrymobile phoneEntitycryptocurrencyEntitycryptographyEntitySanta BarbaraEntityPDFEntityGlobal System for Mobile CommunicationsEntityNational Security AgencyEntityransomwareEntityhash functionEntitypublic-key cryptographyEntitydigital signatureEntityAdvanced Encryption StandardEntityData Encryption StandardEntitysteganographyEntitycryptanalysisEntityQ218170Entitysymmetric-key algorithmEntityCategoriesBlock ciphersBroken block ciphers