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- Glossary_of_cryptographic_keys abstract "This glossary lists types of keys as the term is used in cryptography, as opposed to door locks. Terms that are primarily used by the U.S. National Security Agency are marked (NSA). For classification of keys according to their usage see cryptographic key types. 40-bit key - key with a length of 40 bits, once the upper limit of what could be exported from the U.S. and other countries without a license. Considered very insecure. See key size for a discussion of this and other lengths. authentication key - Key used in a keyed-hash message authentication code, or HMAC. benign key - (NSA) a key that has been protected by encryption or other means so that it can be distributed without fear of its being stolen. Also called BLACK key. content-encryption key (CEK) a key that may be further encrypted using a KEK, where the content may be a message, audio, image, video, executable code, etc. cryptovariable - NSA calls the output of a stream cipher a key or key stream. It often uses the term cryptovariable for the bits that control the stream cipher, what the public cryptographic community calls a key. derived key - keys computed by applying a predetermined hash algorithm or key derivation function to a password or, better, a passphrase. electronic key - (NSA) key that is distributed in electronic (as opposed to paper) form. See EKMS. ephemeral key - A key that only exists within the lifetime of a communication session. expired key - Key that was issued for a use in a limited time frame (cryptoperiod in NSA parlance) which has passed and, hence, the key is no longer valid. key encryption key (KEK) - key used to protect other keys (e.g. TEK, TSK). key production key (KPK) -Key used to initialize a keystream generator for the production of other electronically generated keys. key fill - (NSA) loading keys into a cryptographic device. See fill device. FIREFLY key - (NSA) keys used in an NSA system based on public key cryptography. master key - key from which all other keys (or a large group of keys) can be derived. Analogous to a physical key that can open all the doors in a building. message encryption key (MEK) - See traffic encryption key. one-time pad - keying material that is as long as the plaintext and only used once. See one-time pad article. paper key - (NSA) keys that are distributed in paper form, such as printed lists of settings for rotor machines, or keys in punched card or paper tape formats. Paper key is easily copied. See Walker spy ring, RED key. poem key - Keys used by OSS agents in World War II in the form of a poem that was easy to remember. See Leo Marks. Public/private key - in public key cryptography, separate keys are used to encrypt and decrypt a message. The encryption key (public key) need not be kept secret and can be published. The decryption or private key must be kept secret to maintain confidentiality. Public keys are often distributed in a signed public key certificate. pre-placed key - (NSA) large numbers of keys (perhaps a year's supply) that are loaded into an encryption device allowing frequent key change without refill. RED key - (NSA) symmetric key in a format that can be easily copied, e.g. paper key or unencrypted electronic key. Opposite of BLACK or benign key. revoked key - a public key that should no longer be used, typically because its owner is no longer in the role for which it was issued or because it may have been compromised. Such keys are placed on a certificate revocation list or CRL. session key - key used for one message or an entire communications session. See traffic encryption key. symmetric key - a key that is used both to encrypt and decrypt a message. Symmetric keys are typically used with a cipher and must be kept secret to maintain confidentiality. traffic encryption key (TEK) - a symmetric key that is used to encrypt messages. TEKs are typically changed frequently, in some systems daily and in others for every message. See session key. transmission security key (TSK) - (NSA) seed for a pseudorandom number generator that is used to control a radio in frequency hopping or direct-sequence spread spectrum modes. See SINCGARS, electronic warfare. seed key - (NSA) a key used to initialize a cryptographic device so it can accept operational keys using benign transfer techniques. Also a key used to initialize a pseudorandom number generator to generate other keys. signature key - public key cryptography can also be used to electronically sign messages. The private key is used to create the electronic signature, the public key is used to verify the signature. Separate public/private key pairs must be used for signing and encryption. The former is called signature keys. stream key - the output of a stream cipher as opposed to the key (or cryptovariable in NSA parlance) that controls the cipher training key - (NSA) unclassified key used for instruction and practice exercises. Type 1 key - (NSA) keys used to protect classified information. See Type 1 product. Type 2 key - (NSA) keys used to protect sensitive but unclassified (SBU) information. See Type 2 product. Vernam key - Type of key invented by Gilbert Vernam in 1918. See stream key. zeroized key - key that has been erased (see zeroisation.)".
- Glossary_of_cryptographic_keys wikiPageExternalLink cnssi_4009.pdf.
- Glossary_of_cryptographic_keys wikiPageExternalLink m652001.pdf.
- Glossary_of_cryptographic_keys wikiPageID "1070569".
- Glossary_of_cryptographic_keys wikiPageLength "7043".
- Glossary_of_cryptographic_keys wikiPageOutDegree "59".
- Glossary_of_cryptographic_keys wikiPageRevisionID "559608936".
- Glossary_of_cryptographic_keys wikiPageWikiLink 40-bit_encryption.
- Glossary_of_cryptographic_keys wikiPageWikiLink Advanced_Encryption_Standard.
- Glossary_of_cryptographic_keys wikiPageWikiLink BATON.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Cryptographic_algorithms.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Cryptographic_protocols.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Cryptography_lists_and_comparisons.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Glossaries_of_computers.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Glossaries_of_mathematics.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Key_management.
- Glossary_of_cryptographic_keys wikiPageWikiLink Category:Technology-related_lists.
- Glossary_of_cryptographic_keys wikiPageWikiLink Certificate_revocation_list.
- Glossary_of_cryptographic_keys wikiPageWikiLink Classified_information.
- Glossary_of_cryptographic_keys wikiPageWikiLink Cryptographic_key_types.
- Glossary_of_cryptographic_keys wikiPageWikiLink Cryptography.
- Glossary_of_cryptographic_keys wikiPageWikiLink Cryptoperiod.
- Glossary_of_cryptographic_keys wikiPageWikiLink Data_Encryption_Standard.
- Glossary_of_cryptographic_keys wikiPageWikiLink Direct-sequence_spread_spectrum.
- Glossary_of_cryptographic_keys wikiPageWikiLink EKMS.
- Glossary_of_cryptographic_keys wikiPageWikiLink Electronic_Key_Management_System.
- Glossary_of_cryptographic_keys wikiPageWikiLink Electronic_warfare.
- Glossary_of_cryptographic_keys wikiPageWikiLink Export_of_cryptography.
- Glossary_of_cryptographic_keys wikiPageWikiLink Fill_device.
- Glossary_of_cryptographic_keys wikiPageWikiLink Frequency-hopping_spread_spectrum.
- Glossary_of_cryptographic_keys wikiPageWikiLink Frequency_hopping.
- Glossary_of_cryptographic_keys wikiPageWikiLink Gilbert_Vernam.
- Glossary_of_cryptographic_keys wikiPageWikiLink HMAC.
- Glossary_of_cryptographic_keys wikiPageWikiLink Hash-based_message_authentication_code.
- Glossary_of_cryptographic_keys wikiPageWikiLink Hash_algorithm.
- Glossary_of_cryptographic_keys wikiPageWikiLink Hash_function.
- Glossary_of_cryptographic_keys wikiPageWikiLink John_Anthony_Walker.
- Glossary_of_cryptographic_keys wikiPageWikiLink Kerberos_(protocol).
- Glossary_of_cryptographic_keys wikiPageWikiLink Key_(cryptography).
- Glossary_of_cryptographic_keys wikiPageWikiLink Key_(lock).
- Glossary_of_cryptographic_keys wikiPageWikiLink Key_derivation_function.
- Glossary_of_cryptographic_keys wikiPageWikiLink Key_size.
- Glossary_of_cryptographic_keys wikiPageWikiLink Leo_Marks.
- Glossary_of_cryptographic_keys wikiPageWikiLink National_Security_Agency.
- Glossary_of_cryptographic_keys wikiPageWikiLink Office_of_Strategic_Services.
- Glossary_of_cryptographic_keys wikiPageWikiLink One-time_pad.
- Glossary_of_cryptographic_keys wikiPageWikiLink Paper_tape.
- Glossary_of_cryptographic_keys wikiPageWikiLink Passphrase.
- Glossary_of_cryptographic_keys wikiPageWikiLink Password.
- Glossary_of_cryptographic_keys wikiPageWikiLink Plaintext.
- Glossary_of_cryptographic_keys wikiPageWikiLink Pretty_Good_Privacy.
- Glossary_of_cryptographic_keys wikiPageWikiLink Pseudorandom_number_generator.
- Glossary_of_cryptographic_keys wikiPageWikiLink Public-key_cryptography.
- Glossary_of_cryptographic_keys wikiPageWikiLink Public_key_certificate.
- Glossary_of_cryptographic_keys wikiPageWikiLink Public_key_cryptography.
- Glossary_of_cryptographic_keys wikiPageWikiLink Punched_card.
- Glossary_of_cryptographic_keys wikiPageWikiLink Punched_tape.
- Glossary_of_cryptographic_keys wikiPageWikiLink RC4.
- Glossary_of_cryptographic_keys wikiPageWikiLink Revocation_list.
- Glossary_of_cryptographic_keys wikiPageWikiLink Rotor_machine.
- Glossary_of_cryptographic_keys wikiPageWikiLink SINCGARS.
- Glossary_of_cryptographic_keys wikiPageWikiLink Session_key.
- Glossary_of_cryptographic_keys wikiPageWikiLink Stream_cipher.
- Glossary_of_cryptographic_keys wikiPageWikiLink Type_1_product.
- Glossary_of_cryptographic_keys wikiPageWikiLink Type_2_product.
- Glossary_of_cryptographic_keys wikiPageWikiLink Walker_spy_ring.
- Glossary_of_cryptographic_keys wikiPageWikiLink Zeroisation.
- Glossary_of_cryptographic_keys wikiPageWikiLinkText "Glossary of cryptographic keys".
- Glossary_of_cryptographic_keys hasPhotoCollection Glossary_of_cryptographic_keys.
- Glossary_of_cryptographic_keys subject Category:Cryptography_lists_and_comparisons.
- Glossary_of_cryptographic_keys subject Category:Glossaries_of_computers.
- Glossary_of_cryptographic_keys subject Category:Glossaries_of_mathematics.
- Glossary_of_cryptographic_keys subject Category:Key_management.
- Glossary_of_cryptographic_keys subject Category:Technology-related_lists.
- Glossary_of_cryptographic_keys type List.
- Glossary_of_cryptographic_keys type Glossary.
- Glossary_of_cryptographic_keys type List.
- Glossary_of_cryptographic_keys comment "This glossary lists types of keys as the term is used in cryptography, as opposed to door locks. Terms that are primarily used by the U.S. National Security Agency are marked (NSA). For classification of keys according to their usage see cryptographic key types. 40-bit key - key with a length of 40 bits, once the upper limit of what could be exported from the U.S. and other countries without a license. Considered very insecure. See key size for a discussion of this and other lengths.".
- Glossary_of_cryptographic_keys label "Glossary of cryptographic keys".
- Glossary_of_cryptographic_keys sameAs Q5571785.
- Glossary_of_cryptographic_keys sameAs Q5571785.
- Glossary_of_cryptographic_keys wasDerivedFrom Glossary_of_cryptographic_keys?oldid=559608936.
- Glossary_of_cryptographic_keys isPrimaryTopicOf Glossary_of_cryptographic_keys.