A currency (from Middle English: curraunt, "in circulation", from Latin: currens, -entis) in the most specific use of the word refers to money in any form when in actual use or circulation as a medium of exchange, especially circulating banknotes and coins. A more general definition is that a currency is a system of money (monetary units) in common use, especially in a nation. Under this definition, British pounds, U.S. dollars, and European euros are examples of currency. These various currencies are recognized stores of value, and are traded between nations in foreign exchange markets, which determine the relative values of the different currencies. Currencies in this sense are defined by governments, and each type has limited boundaries of acceptance.
Other definitions of the term "currency" are discussed in their respective synonymous articles banknote, coin, and money. The latter definition, pertaining to the currency systems of nations, is the topic of this article. Currencies can be classified into two monetary systems: fiat money and commodity money, depending on what guarantees the value (the economy at large vs. the government's physical metal reserves). Some currencies are legal tender in certain political jurisdictions, which means they cannot be refused as payment for debt. Others are simply traded for their economic value. Digital currency has arisen with the popularity of computers and the Internet.
Currency in economics may refer to:
Currency may also refer to:
The fictional universe of J. K. Rowling's Harry Potter series of fantasy novels comprises two distinct societies: the wizarding world and the Muggle world. The Muggle World is the series' name for the world inhabited by the non-magical majority, with which the wizarding world exists coextensively, albeit mostly remaining hidden from the non-magical humans. The plot of the series is set in 1990s Britain, but in a veiled and separate shadow society wherein magic is commonly used and practiced, and those who can use it live in self-enforced seclusion, hiding their abilities from the rest of the world. The term "wizarding world" refers to the global wizard community that lives hidden in parallel with the Muggle world; the different terms refer to different communities within the same area rather than separate planets or worlds.
The entire Harry Potter series is set from 1991 to 1998 aside from the opening chapter of the first book, which takes place on 1 November 1981, and the epilogue of the seventh book, which takes place on 1 September 2017. The depiction of the wizarding world is centred on magic, which not only imbues objects such as wands, but is portrayed as an inborn ability. It is also centred on the separation of the wizarding world from the non-wizarding, or Muggle world. Despite being an inherent talent, magic is honed through study and training into a skill.
Crypto or Krypto may refer to:
Crypto++ (also known as CryptoPP, libcrypto++, and libcryptopp) is a free and open source C++ class library of cryptographic algorithms and schemes written by Wei Dai. Crypto++ has been widely used in academia, student projects, open source and non-commercial projects, as well as businesses. Released in 1995, the library fully supports 32-bit and 64-bit architectures for many major operating systems and platforms, including Android (using STLport), Apple (Mac OS X and iOS), BSD, Cygwin, IBM AIX and S/390, Linux, MinGW, Solaris, Windows, Windows Phone and Windows RT. The project also supports compilation under C++03 and C++11, a variety of compilers and IDEs, including Borland Turbo C++, Borland C++ Builder, Clang, CodeWarrior Pro, GCC (including Apple's GCC), Intel C++ Compiler (ICC), Microsoft Visual C/C++, and Sun Studio.
Crypto++ ordinarily provides complete cryptographic implementations, and often includes less popular, less frequently-used schemes. For example, Camellia is an ISO/NESSIE/IETF-approved block cipher roughly equivalent to AES, and Whirlpool is an ISO/NESSIE/IETF-approved hash function roughly equivalent to SHA; both are included in the library.
CRYPTO, the International Cryptology Conference, is one of the largest academic conferences in cryptography and cryptanalysis. It is organized by the International Association for Cryptologic Research (IACR), and it is held yearly in August in Santa Barbara, California at the University of California, Santa Barbara.
The first CRYPTO was held in 1981. It was the first major conference on cryptology, and was all the more important because relations between government, industry and academia were rather tense. Encryption was considered a very sensitive subject and the coming together of delegates from different countries was unheard-of at the time. The initiative for the formation of the IACR came during CRYPTO '82, and CRYPTO '83 was the first IACR sponsored conference.