Jisho

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暗号利用
Wikipedia definition
1. Block cipher modes of operationIn cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key. A block cipher by itself allows encryption only of a single data block of the cipher's block length. When targeting a variable-length message, the data must first be partitioned into separate cipher blocks. Typically, the last block must also be extended to match the cipher's block length using a suitable padding scheme.
Read “Block cipher modes of operation” on English Wikipedia
Read “暗号利用モード” on Japanese Wikipedia
Read “Block cipher modes of operation” on DBpedia

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