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CTR Mode
CTR may refer to: Engineering, science and technology * Counter mode (CTR mode), a cryptographic mode of operation for block ciphers * X-ray crystal truncation rod, a technique to measure properties of crystal surfaces * Current transfer ratio, in an opto-isolator device * Content Threat Removal, a cyber security technology that defeats content threats Government * Cooperative Threat Reduction, an initiative to secure and dismantle weapons of mass destruction in former Soviet Union states * Currency transaction report, a report about transactions that the Bank Secrecy Act requires U.S. financial institutions to file with the Internal Revenue Service Media, arts and entertainment * '' Contemporary Theatre Review'', a British academic journal of performing arts * '' Crash Team Racing'', Naughty Dog's 1999 video game for the Sony PlayStation ** ''Crash Team Racing Nitro-Fueled'', its 2019 remake Medicine * Cardiac resynchronization therapy * Cardio-thoracic ratio, a measure of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Counter Mode
In cryptography, a block cipher mode of operation is an algorithm that uses a block cipher to provide information security such as confidentiality or authenticity. A block cipher by itself is only suitable for the secure cryptographic transformation (encryption or decryption) of one fixed-length group of bits called a block. A mode of operation describes how to repeatedly apply a cipher's single-block operation to securely transform amounts of data larger than a block. Most modes require a unique binary sequence, often called an initialization vector (IV), for each encryption operation. The IV must be non-repeating, and for some modes must also be random. The initialization vector is used to ensure that distinct ciphertexts are produced even when the same plaintext is encrypted multiple times independently with the same key. Block ciphers may be capable of operating on more than one block size, but during transformation the block size is always fixed. Block cipher modes op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
