EntityQ2304066· pop 8· linked from 64 articlesVIC cipherSign in to savecipher used by Soviet spy Reino HäyhänenConnectionsencryptionEntitytransposition cipherEntitycodeEntitySecure channelEntityoutline of cryptographyEntityJapanCountrySwitzerlandCountryWorld War IIConceptSoviet UnionConceptcryptocurrencyEntityWayback MachineEntitycryptographyEntityespionageEntitydigitEntityNational Security AgencyEntityransomwareEntityEnigmaEntityCaesar cipherEntityRichard SorgeEntityhash functionEntityCategoriesClassical ciphersScience and technology in the Soviet Union