1628 Is There a Correlation Between a Corona Resident S Big Three
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The Dunhuang Chinese Sky: a Comprehensive Study of the Oldest Known Star Atlas
25/02/09JAHH/v4 1 THE DUNHUANG CHINESE SKY: A COMPREHENSIVE STUDY OF THE OLDEST KNOWN STAR ATLAS JEAN-MARC BONNET-BIDAUD Commissariat à l’Energie Atomique ,Centre de Saclay, F-91191 Gif-sur-Yvette, France E-mail: [email protected] FRANÇOISE PRADERIE Observatoire de Paris, 61 Avenue de l’Observatoire, F- 75014 Paris, France E-mail: [email protected] and SUSAN WHITFIELD The British Library, 96 Euston Road, London NW1 2DB, UK E-mail: [email protected] Abstract: This paper presents an analysis of the star atlas included in the medieval Chinese manuscript (Or.8210/S.3326), discovered in 1907 by the archaeologist Aurel Stein at the Silk Road town of Dunhuang and now held in the British Library. Although partially studied by a few Chinese scholars, it has never been fully displayed and discussed in the Western world. This set of sky maps (12 hour angle maps in quasi-cylindrical projection and a circumpolar map in azimuthal projection), displaying the full sky visible from the Northern hemisphere, is up to now the oldest complete preserved star atlas from any civilisation. It is also the first known pictorial representation of the quasi-totality of the Chinese constellations. This paper describes the history of the physical object – a roll of thin paper drawn with ink. We analyse the stellar content of each map (1339 stars, 257 asterisms) and the texts associated with the maps. We establish the precision with which the maps are drawn (1.5 to 4° for the brightest stars) and examine the type of projections used. -
Star Chart Lab
Star Chart Lab 6) a. About how many stars are in the Pleiades cluster? Star Chart Lab b. Why do you think its nick name is “The Seven Sisters”? c. Which constellation is the Pleiades cluster in? •Materials 7) Star Atlas Deluxe Edition a. Which named star is ten arc minutes from the brightest star in the constellation Gemini? •Procedure b. Is the brightest “star” in Gemini actually just one star? In this lab, you will explore the star charts of c. What type of object lies 38 arc minutes less our night sky. You might want to skim the intro- in RA, 0.6o in Dec. south from the star Pollux? duction at the front of the charts before you d. What type of object lies about 20 arc minuets begin. In the front or back of the book you’ll less in RA, 1.5o in Dec. north of Pollux? find a transparency which lays over the charts, giving you more detailed measurements. Star 8) When looking in the night sky from campus, charts use a special type of coordinates, called you certainly see fewer stars than are on these the Equatorial system. If you are not familiar maps. Many constellations are actually easier to with this system, e.g. Right Ascension (RA) and find in conditions such as on campus. Declination (Dec.), then take a minute to read a. Which stars do you think you can see in the Appendix A of this manual. Otherwise, answer constellation Lyra from campus? the questions below. b. What planetary nebula is in Lyra? c. -
Classifying Classic Ciphers Using Machine Learning
San Jose State University SJSU ScholarWorks Master's Projects Master's Theses and Graduate Research Spring 5-20-2019 Classifying Classic Ciphers using Machine Learning Nivedhitha Ramarathnam Krishna San Jose State University Follow this and additional works at: https://scholarworks.sjsu.edu/etd_projects Part of the Artificial Intelligence and Robotics Commons, and the Information Security Commons Recommended Citation Krishna, Nivedhitha Ramarathnam, "Classifying Classic Ciphers using Machine Learning" (2019). Master's Projects. 699. DOI: https://doi.org/10.31979/etd.xkgs-5gy6 https://scholarworks.sjsu.edu/etd_projects/699 This Master's Project is brought to you for free and open access by the Master's Theses and Graduate Research at SJSU ScholarWorks. It has been accepted for inclusion in Master's Projects by an authorized administrator of SJSU ScholarWorks. For more information, please contact [email protected]. Classifying Classic Ciphers using Machine Learning A Project Presented to The Faculty of the Department of Computer Science San José State University In Partial Fulfillment of the Requirements for the Degree Master of Science by Nivedhitha Ramarathnam Krishna May 2019 © 2019 Nivedhitha Ramarathnam Krishna ALL RIGHTS RESERVED The Designated Project Committee Approves the Project Titled Classifying Classic Ciphers using Machine Learning by Nivedhitha Ramarathnam Krishna APPROVED FOR THE DEPARTMENT OF COMPUTER SCIENCE SAN JOSÉ STATE UNIVERSITY May 2019 Dr. Mark Stamp Department of Computer Science Dr. Thomas Austin Department of Computer Science Professor Fabio Di Troia Department of Computer Science ABSTRACT Classifying Classic Ciphers using Machine Learning by Nivedhitha Ramarathnam Krishna We consider the problem of identifying the classic cipher that was used to generate a given ciphertext message. -
Name a Star Certificate
Name A Star Certificate LiamObliterated never Jerzyprint-out intimidating any jabbers! punily. Cobbie brazes her klephts stertorously, she vocalizes it veeringly. Piffling or beneficial, Will name certificate What does this is a unique certificates etc place in january, software free photo book, novelty gift set, hart ventures had a star! Sign up today, purchase a luxury gift to do not a star gift that offer to see this element live on customer are! So everyone who assist us how are delivered, all cookies to your partner can be. Imagine all tastes, name a birthday gift that said a configuration that! Own, business people use nicknames and some make use two names. Please enter a name a cute couple names stars named star naming a snowflake design with this manner, helping everyone loves getting a standard shipping! Whether for your life of something to names should be visible constellation should name a star certificate for named star? With name of naming works in space to celestial stars more than enough stars shine forever call your search for their loved ones. Just fade the annual of the welfare you want to surprise, thank you shadow your comment. An eternal health that beautiful shine thorough the heavens for thousands of years to come. Would like you for your certificate and a certificate done over! If you provide an object that is popular gift you will receive launch certificate, it was even one of these programs. But all required fields below for certificates, certificate for your star live constellations, we provide you will be cancelled and discussing it? Our attack of doubt gift specialists will assault their mutual to cleave you are should care nut before at after recording a guest name with us. -
Abd Al-Rahman Al-Sufi and His Book of the Fixed Stars: a Journey of Re-Discovery
ResearchOnline@JCU This file is part of the following reference: Hafez, Ihsan (2010) Abd al-Rahman al-Sufi and his book of the fixed stars: a journey of re-discovery. PhD thesis, James Cook University. Access to this file is available from: http://eprints.jcu.edu.au/28854/ The author has certified to JCU that they have made a reasonable effort to gain permission and acknowledge the owner of any third party copyright material included in this document. If you believe that this is not the case, please contact [email protected] and quote http://eprints.jcu.edu.au/28854/ 5.1 Extant Manuscripts of al-Ṣūfī’s Book Al-Ṣūfī’s ‘Book of the Fixed Stars’ dating from around A.D. 964, is one of the most important medieval Arabic treatises on astronomy. This major work contains an extensive star catalogue, which lists star co-ordinates and magnitude estimates, as well as detailed star charts. Other topics include descriptions of nebulae and Arabic folk astronomy. As I mentioned before, al-Ṣūfī’s work was first translated into Persian by al-Ṭūsī. It was also translated into Spanish in the 13th century during the reign of King Alfonso X. The introductory chapter of al-Ṣūfī’s work was first translated into French by J.J.A. Caussin de Parceval in 1831. However in 1874 it was entirely translated into French again by Hans Karl Frederik Schjellerup, whose work became the main reference used by most modern astronomical historians. In 1956 al-Ṣūfī’s Book of the fixed stars was printed in its original Arabic language in Hyderabad (India) by Dārat al-Ma‘aref al-‘Uthmānīa. -
Provable Security Evaluation of Structures Against Impossible Differential and Zero Correlation Linear Cryptanalysis ⋆
Provable Security Evaluation of Structures against Impossible Differential and Zero Correlation Linear Cryptanalysis ⋆ Bing Sun1,2,4, Meicheng Liu2,3, Jian Guo2, Vincent Rijmen5, Ruilin Li6 1 College of Science, National University of Defense Technology, Changsha, Hunan, P.R.China, 410073 2 Nanyang Technological University, Singapore 3 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing, P.R. China, 100093 4 State Key Laboratory of Cryptology, P.O. Box 5159, Beijing, P.R. China, 100878 5 Dept. Electrical Engineering (ESAT), KU Leuven and iMinds, Belgium 6 College of Electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, P.R.China, 410073 happy [email protected] [email protected] [email protected] [email protected] [email protected] Abstract. Impossible differential and zero correlation linear cryptanal- ysis are two of the most important cryptanalytic vectors. To character- ize the impossible differentials and zero correlation linear hulls which are independent of the choices of the non-linear components, Sun et al. proposed the structure deduced by a block cipher at CRYPTO 2015. Based on that, we concentrate in this paper on the security of the SPN structure and Feistel structure with SP-type round functions. Firstly, we prove that for an SPN structure, if α1 → β1 and α2 → β2 are possi- ble differentials, α1|α2 → β1|β2 is also a possible differential, i.e., the OR “|” operation preserves differentials. Secondly, we show that for an SPN structure, there exists an r-round impossible differential if and on- ly if there exists an r-round impossible differential α → β where the Hamming weights of both α and β are 1. -
Theory and Practice of Cryptography: Lecture 1
Theory and Practice of Cryptography From Classical to Modern About this Course All course materials: http://saweis.net/crypto.shtml Four Lectures: 1. History and foundations of modern cryptography. 2. Using cryptography in practice and at Google. 3. Theory of cryptography: proofs and definitions. 4. A special topic in cryptography. Classic Definition of Cryptography Kryptósgráfo , or the art of "hidden writing", classically meant hiding the contents or existence of messages from an adversary. Informally, encryption renders the contents of a message unintelligible to anyone not possessing some secret information. Steganography, or "covered writing", is concerned with hiding the existence of a message -- often in plain sight. Scytale Transposition Cipher Caesar Substitution Cipher Zodiac Cipher Vigenère Polyalphabetic Substitution Key: GOOGLE Plaintext: BUYYOUTUBE Ciphertext: HIMEZYZIPK Rotor-based Polyalphabetic Ciphers Steganography He rodotus tattoo and wax tablets Inv is ible ink Mic rodots "Th e Finger" Priso n gang codes Low-order bits Codes Codes replace a specific piece of plaintext with a predefined code word. Codes are essentially a substitution cipher, but can replace strings of symbols rather than just individual symbols. Examples: "One if by land, two if by sea." Beale code Numbers stations ECB Mode Kerckhoffs' Principle A cryptosystem should be secure even if everything about it is public knowledge except the secret key. Do not rely on "security through obscurity". One-Time Pads Generate a random key of equal length to your message, then exclusive-or (XOR) the key with your message. This is information theoretically secure...but: "To transmit a large secret message, first transmit a large secret message" One time means one time. -
Baa Hane’ Story of the Stars
National Aeronautics and Space Administration S-’ Baa Hane’ Story of the Stars Educational Activities Weaving NASA Science and Navajo Knowledge For use in Classrooms and Community-Based Educational Events S-’ Baa Hane’ Story of the Stars Educational Activities Weaving NASA Science and Navajo Knowledge 1 NASA and the Navajo Nation Project The 2005 NASA Explorer Institute Project entitled “NASA and the Navajo Nation” was led by the NASA Astrobiology Institute in collaboration with ArtReach International. The project was carried out in partnership with The Navajo Nation Council, Office of the Speaker. The project evolved from a 2004 NASA Explorer Institute Focus Group conducted by ArtReach International. In the Focus Group, members of the Navajo education community identified needs and desires in partnering with NASA on educational initiatives. The educational materials created within the NASA and the Navajo Nation project, this activity booklet and a short film, both entitled “S-’ Baa Hane’ - Story of the Stars,” are a direct result of the Focus Group’s findings. The activities and film weave together NASA astrobiology science and Navajo cultural teachings relating to the stars to create a “dual-learning” environment wherein the cultural and scientific concepts are explored together, equally. This product is for non-commercial, educational use only. 2 http://nai.nasa.gov/storyofthestars Iiná Dóó Óhoo’ Aah Bindii’ A’ Overall Diné Education Philosophy From the Diné Culture and Language Curriculum Framework Office of Diné Culture, Language, and Community Services We are the Holy People of the Earth. We are created and placed between our Mother Earth and Father Sky. Our home, the Four Sacred Mountains, with the entrance to the East, embodies our Way of Life. -
Cancer: Foundation and Cradle of Life
CANCER: FOUNDATION AND CRADLE OF LIFE Both physicist and metaphysician agree that the beginning of our manifested universe came from One Source and that all subsequent forms of life are composed of this primordial matter. Where the two camps differ is that the metaphysician and student of The Ancient Wisdom would go on to state that the matter of the universe is alive and intelligent. We would say that this Life and this Great Intelligence can be experienced by those men and women sensitive enough to recognize Its Presence. We would also say that this Life inhabits all matter thus transcending it, and that we are also that Life, incarnating in human form. —A.O. The word “foundation” accurately describes the function of Cancer in the zodiac of the signs. Exoterically and in practical terms, this sense of anchoring externalizes through the commonly known definition of Cancer as the sign of the home, ruled by the Moon symbolizing one’s mother. This is quite true but if we add the soul- centered meanings of this sign and planet combination, we come to a much deeper and broader definition of the purpose of the Crab and its planetary ruler in our lives. In soul-centered astrology, we understand Cancer, foundation and the home to indicate the primary urge to integrate the personality so that it might reflect the intent of the soul, also symbolized by the Moon. The personality is composed of three units: the physical body, the desire nature (the astral body as it is also called), and the lower mind or reason. -
View the Entire Zine
hami trinh jackson tuggle arbor krehnbrink eleventh house audrey graham the house of friendship, community, charity and wishes sophie dickerson sarah phillips ila waller aiden mccoy james straub virgo the basics july 23 - september 22 ruling planet: mercury astrology dates back to babylon nearly 3,000 years ago. it is the study of the move- element: earth ments of planets and their relation to events that happen on earth. positions of qualities: helpful, methodical, down-to-earth, humble planets and stars like the sun and moon can influence a person’s birth chart, which libra could potentially effect their personality and temperament. most people know about semptember 23 - october 22 sun signs (which is whatever sign the sun was in when you were born), but there ruling planet: venus are so many more planets and placements that influence a birth chart. element: air qualities: loving, balanced, social, indecisive a quick run-down of each sign, their dates, ruling planet, and qualities etc.: scorpio october 23 - november 21 aries ruling planet: mars & pluto march 20 - april 21 element: water ruling planet: mars qualities: curious, intuitive, determined, honest element: fire qualities: go-getter, leader, energetic, expressive sagittarius taurus november 22 - december 21 april 20 - may 20 ruling planet: jupiter ruling planet: venus element: fire element: earth qualities: optimistic, hilarious, flexible, tenacious qualities: loyal, genuine, stubborn, materialistic capricorn gemini december 21 - january 20 may 22 - june 21 ruling planet: saturn -
An Upper Bound of the Longest Impossible Differentials of Several Block Ciphers
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS VOL. 13, NO. 1, Jan. 2019 435 Copyright ⓒ 2019 KSII An Upper Bound of the Longest Impossible Differentials of Several Block Ciphers Guoyong Han1,2, Wenying Zhang1,* and Hongluan Zhao3 1 School of Information Science and Engineering, Shandong Normal University, Jinan, China [e-mail: [email protected]] 2 School of Management Engineering, Shandong Jianzhu University, Jinan, China [e-mail: [email protected]] 3 School of Computer Science and Technology, Shandong Jianzhu University, Jinan, China *Corresponding author: Wenying Zhang Received January 29, 2018; revised June 6, 2018; accepted September 12, 2018; published January 31, 2019 Abstract Impossible differential cryptanalysis is an essential cryptanalytic technique and its key point is whether there is an impossible differential path. The main factor of influencing impossible differential cryptanalysis is the length of the rounds of the impossible differential trail because the attack will be more close to the real encryption algorithm with the number becoming longer. We provide the upper bound of the longest impossible differential trails of several important block ciphers. We first analyse the national standard of the Russian Federation in 2015, Kuznyechik, which utilizes the 16-byte LFSR to achieve the linear transformation. We conclude that there is no any 3-round impossible differential trail of the Kuznyechik without the consideration of the specific S-boxes. Then we ascertain the longest impossible differential paths of several other important block ciphers by using the matrix method which can be extended to many other block ciphers. As a result, we show that, unless considering the details of the S-boxes, there is no any more than or equal to 5-round, 7-round and 9-round impossible differential paths for KLEIN, Midori64 and MIBS respectively. -
Astronomy Alphabet
Astronomy Alphabet Educational video for children Teacher https://vimeo.com/77309599 & Learner Guide This guide gives background information about the astronomy topics mentioned in the video, provides questions and answers children may be curious about, and suggests topics for discussion. Alhazen A Alhazen, called the Father of Optics, performed NASA/Goddard/Lunar Reconnaissance Orbiter, Apollo 17 experiments over a thousand years ago Can you find Alhazen crater when you look at the Moon? to learn about how light travels and Why does the Moon look bigger near the behaves. He also studied astronomy, horizon? separated light into colors, and sought to Believe it or not, scientists still don’t know for sure why explain why the Moon looks bigger near we perceive the Moon to be larger when it lies near to the the horizon. horizon. Though photos of the Moon at different points in the sky show it to be the same size, we humans think we I’ve never heard of Abu Ali al-Hasan ibn al- see something quite different. Try this experiment yourself Hasan ibn al-Hatham (Alhazen). sometime! One possibility is that objects we see next to the Tell me more about him. Moon when it’s near to them give us the illusion that it’s We don’t know that much about Alhazen be- bigger, because of a sense of scale and reference. cause he lived so long ago, but we do know that he was born in Persia in 965. He wrote hundreds How many craters does the Moon have, and what of books on math and science and pioneered the are their names? scientific method of experimentation.