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http://members.tip.net.au/~dbell/The home page of David Ingalls Bell.Good programs available from one of the best programmers on planet. 阅读全文
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Parameters:p , q (private, chosen)n=p*q (public, calculated)e (public, chosen)d (private, calculated)e*d mod=1. =(p-1)*(q-1); 阅读全文
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The purpose of this algorithm is to enable two users to exchange a key securely that can then be used for subsequent encryption of messages. The algorithm itself is limited to the exchange of keys.Two publicly known parameters:1.prime number q2.integer g that is primitive root of q.Using these two p 阅读全文
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three public parameters:1.160-bit prime number q is chosen;2.prime number p is selected with a length between 512 and 1024 bits , such that q divides(p-1).3.g is chosen to be of the form h^((p-1)/q)mod p. 1<g<p-1.With these numbers in hand, each user selects a private key and genertes a public 阅读全文
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What is Ajax?Asynchronous javascript and XML.Based on javascript and HTTP request.Ajax is not a new language but a new way to use standard._______________________________________________________How to use it?create XMLHttpRequest object.method:open();send();properties: onreadystatechange,readyState, 阅读全文
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1. download fromhttp://ant.apache.org/. This tool can be used to package code.2. set path. right click my computer->properties->Advanced System Setting->variable path. Under Administrator,create new ANT_HOME variable setting its value asD:\program tools\apache-ant-1.9.2-bin\apache-ant-1.9.2 阅读全文
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WSDL, Web Service Description Language, used for describing the web services. SOAP, Simple Object Access Protocol, used for accessing web services. UDDI, Universal Description, Discovery and Integration,a directory service where company can search web services.RDF, Resource Description Framework, wr 阅读全文
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Just searched some pages on google, I conclude following tips:1..h files only contain declarations, .c contain definitions. In other words, .h don't use memory but .c use.2..h is interpreted during pompilation time.3..h is like interface , it only servers definition rather than execution. 阅读全文
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Metadata is data (information) about data.The tag provides metadata about the HTML document. Metadata will not be displayed on the page, but will be machine parsable.Meta elements are typically used to specify page description, keywords, author of the document, last modified, and other metadata.The. 阅读全文
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My dear fellow-citizens,Brothers, sisters and dear children,I greet you all on this Independence Day.Today is certainly a day of joy for us. But on this celebration of independence we also feel pain in our hearts that our brothers and sisters inUttarakhandhad to face devastation about two months bac 阅读全文