翻訳と辞書 Words near each other ・ Partial integration (contract law) ・ Partial isometry ・ Partial k-tree ・ Partial least squares path modeling ・ Partial least squares regression ・ Partial leverage ・ Partial likelihood methods for panel data ・ Partial linear space ・ Partial list of Orthodox churches destroyed as part of the recovery of churches in the Second Republic ・ Partial melting ・ Partial molar property ・ Partial monosomy 13q ・ Partial Nuclear Test Ban Treaty ・ Partial order reduction ・ Partial oxidation ・ Partial Password ・ Partial payment ・ Partial permutation ・ Partial Portraits ・ Partial pressure ・ Partial productivity ・ Partial redundancy elimination ・ Partial regression plot ・ Partial residual plot ・ Partial response maximum likelihood ・ Partial return reverse swap ・ Partial seizure ・ Partial sorting ・ Partial specific volume ・ Partial stroke testing Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Partial Password ： ウィキペディア英語版 Partial Password Partial Password is a mode of password authentication. By asking the user to enter only a few specific characters from their password,〔(【引用サイトリンク】accessdate=2011-03-03 )〕 rather than the whole password, partial passwords help to protect the user from password theft. As only part of the password is revealed at once it becomes more difficult to obtain the password using techniques such as keystroke logging or shoulder surfing. There is a paper by David Aspinall and Mike Just 〔(【引用サイトリンク】accessdate=2015-10-14 )〕 that describes Partial Password implementations and attacks in a detailed study. ==Verifying Partial Passwords== It is good practice to not store passwords in cleartext. Instead when checking a whole password it is common to store the result of passing the password to a cryptographic hash function. As the user doesn't supply the whole password it cannot be verified against a stored digest of the whole password. Some have suggested storing the digest of each combination of letters that could be requested but they note that this results in generating and storing a large amount of digests.〔(【引用サイトリンク】accessdate=2011-03-03 )〕〔(【引用サイトリンク】url=http://www.smartarchitects.co.uk/news/9/15/Partial-Passwords---How.html )〕 A better solution in terms of storage space and security is using a secret sharing scheme.〔〔(Update to Partial Passwords )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Partial Password」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.