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--- en:racfor_wiki:template [2021/01/15 15:17]
jli [Chapter 1]
+++ en:racfor_wiki:template [2024/12/05 12:24] (current)
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-====== Block Cipher Modes ======
+====== Title ======
 ===== Abstract =====
-Block cipher is one of the most widely-used tool in cryptography, and its mode of operation features the use of a symmetric-key block-cipher algorithm in providing information security such as confidentiality or authenticity. Five modes of operation with AES algorithm will be discussed in this paper: Electronic Codebook (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Counter (CTR).  These modes can provide cryptographic protection for sensitive, but classified, computer data.
+How do you write an abstract? Identify your purpose. You're writing about a correlation between lack of lunches in schools and poor grades. … Explain the problem at hand. Abstracts state the “problem” behind your work. … Explain your methods. … (Source) Save your work regularly!!! Describe your results (informative abstract only). … Abstract should be no longer that 400 words. Please note that the table of contents in the  upper part of the page is generated automatically based on the used headings.
-Keywords: Computer security; cryptography; block cipher; mode of operation
+Keywords: abstract; bastract; astract; retract; tractor
 ===== Introduction =====
-Block cipher is one of the most widely-used tool in cryptography, but itself is only used of one fixed-length group of bits called a block [1]. 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 [2].
-The five modes—the Electronic Codebook (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Counter (CTR) modes can provide data confidentiality.
+===== Chapter 1 =====
-===== Electronic Codebook (ECB) =====
-The electronic codebook (ECB) is the simplest encryption mode, which is named after conventional physical codebooks. For the given key, ECB features the same assignment of a fixed ciphertext block to each plaintext. Each block is been manipulated separately.
-{{:en:racfor_wiki:ecb_model.png?400|}}
-In ECB encryption and ECB decryption, multiple forward cipher functions and inverse cipher functions can be computed in parallel under a given key.
-The ECB mode has an disadvantages—a lack of diffusion, under a given key, any given plaintext block always gets encrypted to the same cyphertext if they are identical.
 ===== Chapter 2 =====

en/racfor_wiki/template.1610723854.txt.gz · Last modified: 2024/12/05 12:23 (external edit)