Картинки на тему «Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications» |
| Курсы английского | ||
| << Moonbok Lee Korea Institute for Curriculum and Evaluation | Tools and Tips for Submitting Responses Electronically >> |
Картинок нет |
Автор: Werner Schindler. Чтобы познакомиться с картинкой полного размера, нажмите на её эскиз. Чтобы можно было использовать все картинки для урока английского языка, скачайте бесплатно презентацию «Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications.ppt» со всеми картинками в zip-архиве размером 87 КБ.
Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications
содержание презентации «Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications.ppt»| Сл | Текст | Сл | Текст |
| 1 | Evaluation Criteria for True | 15 | evaluation criteria which shall permit the |
| (Physical) Random Number Generators Used | comparability between independent security | ||
| in Cryptographic Applications. Werner | evaluations. - A product or system which | ||
| Schindler1, Wolfgang Killmann2. 1 | has been successfully evaluated is awarded | ||
| Bundesamt f?r Sicherheit in der | with an internationally recognized IT | ||
| Informationstechnik (BSI) Bonn, Germany. 2 | security certificate. | ||
| T-Systems ISS GmbH Bonn, Germany. | 16 | CC: Evaluation of Random Number | |
| 2 | Random numbers in cryptographic | Generators. ITSEC, CC and the | |
| applications. Examples: - random session | corresponding evaluation manuals do not | ||
| keys. - RSA prime factors. - random | specify any uniform evaluation criteria | ||
| numbers for DSS. - zero-knowledge-proofs. | for random number generators! In the | ||
| - challenge-response-protocols. - IV | German evaluation and certification scheme | ||
| vectors. - ... | the evaluation guidance document. AIS 31: | ||
| 3 | Random number generators. - true | Functionality Classes and Evaluation | |
| (physical) random number generators | Methodology for Physical Random Number | ||
| (TRNGs). deterministic random number | Generators. has been effective since | ||
| generators (DRNGs) (output completely | September 2001. | ||
| determined by the seed). hybrid generators | 17 | AIS 31 (I). - provides clear | |
| (refreshing their seed regularly; e.g. by | evaluation criteria for TRNGs. - no | ||
| exploiting user‘s interaction, mouse move- | statistical blackbox tests for class P2. - | ||
| ment, key strokes or register values). | discusses positive and negative examples. | ||
| 4 | Requirements on random numbers. The | 18 | AIS 31 (II). - does not favour or |
| requirements on the used random numbers | exclude any reasonable TRNG design; if | ||
| depend essentially on the intended | necessary, the applicant has give and to | ||
| application! R1: The random numbers should | justify alternative criteria. - | ||
| have good statistical properties. R2: The | mathematical-technical reference: W. | ||
| knowledge of subsequences of random | Schindler, W. Killmann: A Proposal for: | ||
| numbers shall not enable to compute pre- | Functionality Classes and Evaluation | ||
| decessors or successors or to guess them | Methodology for True (Physical) Random | ||
| with non-negligible probability. | Number Generators. | ||
| 5 | TRNGs vs. DRNGs. For sensitive | www.bsi.bund.de/zertifiz/zert/interpr/trng | |
| applications requirement R2 is | 31.pdf. | ||
| indispensable! DRNGs rely on computational | 19 | AIS 31: Alternative Criteria (I). | |
| complexity („practical security“). TRNGs: | P2-specific requirement P2.d)(vii): | ||
| If the entropy per random number is suffi- | Digitised noise signal sequences meet | ||
| ciently large this ensures theoretical | particular criteria or pass statistical | ||
| security. | tests intended to rule out features such | ||
| 6 | Objectives of a TRNG evaluation (I): | as multi-step dependencies ... ... Tests | |
| Verification of the general suitability. | and evaluation rules are specified in | ||
| of the TRNG-design. at hand of. | sub-section P2.i). Aim of this | ||
| theoretical considerations and. carefully | requirement: to guarantee a minimum | ||
| investigated prototypes. | entropy limit for the das-random numbers | ||
| 7 | TRNGs in operation: General problems | and, consequently, for the internal random | |
| and risks. - total breakdown of the noise | numbers. | ||
| source. - aging effects. - tolerances of | 20 | AIS 31: Alternative Criteria (II). | |
| components. | Case A): The das-random numbers do not | ||
| 8 | tot-test / startup test / online test. | meet these criteria. Using an appropriate | |
| test. aim. | (data-compressing) mathematical | ||
| 9 | Objectives of a TRNG evaluation (II): | postprocessing the entropy of the internal | |
| Verification of the suitability. of the | r.n.s may yet be sufficiently large. The | ||
| tot-, startup- and online test. at hand | applicant has to give clear proof that the | ||
| of. theoretical considerations. | entropy of the internal random numbers is | ||
| 10 | TRNG (schematic design). noise source. | sufficiently large, taking into account | |
| 11 | Which random numbers should be tested? | the mathematical postprocessing on basis | |
| (I). Example: linear feedback shift | of the empirical properties of the | ||
| register. worst case scenario: total | digitized noise signal sequence. | ||
| breakdown of the noise sorce. | 21 | AIS 31: Alternative Criteria (III). | |
| 12 | Which random numbers should be tested? | Case B): Due to construction of the TRNG | |
| (II). Example (continued): Statistical | there is no access to the das-random | ||
| blackbox tests applied on the internal | numbers possible. The applicant | ||
| random numbers will not detect a total | additionally has to give a comprehensible | ||
| breakdown of the noise source (unless the | and plausible description of a | ||
| linear complexity profile is tested). The | mathematical model of the noise source and | ||
| relevant property is the increase of | of the das random numbers (specifying a | ||
| entropy per random bit. | distribution class!). | ||
| 13 | Entropy (I). | 22 | AIS 31: Reference Implementation. The |
| 14 | Entropy (II). das-random numbers: - | AIS 31 has been well-tried in a number of | |
| may not be equidistributed - may be | product evaluations. A reference | ||
| dependent on predecessors - but there | implementation of the applied statistical | ||
| should not be complicated algebraic | tests will be put on the BSI website in | ||
| long-term dependencies (-> math. model | September. | ||
| of the noise source). | www.bsi.bund.de/zertifiz/zert/interpr/ais_ | ||
| 15 | ITSEC and CC. ITSEC (Information | c.htm. | |
| Technology Security Evaluation Criteria) | 23 | Proposals and ideas. for improvement | |
| and CC (Common Criteria) - provide | of the AIS 31. are always welcome! | ||
| Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications.ppt | |||
Evaluation Criteria for True (Physical) Random Number Generators Used in Cryptographic Applications
«English for you» - Артикль Множественное число Предлоги. «Английский для тебя» (курс английского языка с применением ИКТ). Узнать насколько хорошо ты усвоил материал тебе помогут: Викторины Задания Игры Игровые упражнения Ты можешь выбрать уровень сложности. You are welcome! Может ли компьютер заменить учителя? Ты сможешь совершенствовать своё произношение.
«English for you» - Ты сможешь совершенствовать своё произношение. Твои школьные учебники. Слова и выражения по темам. При выполнении заданий программа оценивает твой результат и предоставляет отчёт. Все слова и выражения озвучены носителями языка. Ты научишься правильно строить предложение. ENGLISH FOR YOU. Грамматика станет твоим другом.
«Детский английский» - Программа адресована. В процессе обучения дети. «Английский язык для младшего школьного возраста». По окончании обучения по данной программе учащиеся будут: Вхождение в программу возможно на любом году обучения. Овладение английским языком на уровне elementary и приобретение социо-культурных знаний.
«Деловой английский» - Список методических материалов. Информационные ресурсы. Прилагательные: личные и профессиональные качества человека. Методы оформления информации в виде слайдовой презентации, публикации, веб-сайта. Примеры работ учащихся. Аннотация проекта. Обсуждение источников информации и защиты авторских прав. Методические цели проекта.
«Курсы английского языка» - Hi Ann welcome to London! Курс “Millie”. Линейка “New Millennium English”. Новый проект - серия книг для чтения. Личностные результаты обучения в курсе “Happy English.ru”. Города и села, родной край/регион/город/родное село. Метапредметные результаты обучения в курсе “Millie”. Линейка “Millie”. “English for Science” О.Л. Гроза, В.Е. Гусейнова, Т.Н. Рыжкова, Е.Е. Скуратович.
«Языковые лагеря» - Тематические вечеринки. Workshops. Языковые лагеря в России и за рубежом. Елочки. Москва. Языковые лагеря. Искра. English lessons. Распорядок дня. Knowledge control. E-Camp explore Europe.
![Mercedes ISD Random Drug Testing Program [FNF(Local)]](/up/thumbs/228849/001.jpg)
