数学読本
ㅇ저자 : 마츠자카 가즈오( 松坂和夫 마츠사카 카즈오, 1927.2.15. ~ 2012.1.4.)
일본의 수학자. 히토쓰바시 대학의 명예교수로 재직함
ㅇ옮긴이 : 김태성(金泰星), 서울대학교 문리과대학 졸업, 원광대학교 수학.정보통계학부 교수
How to use digital Signatures
1. Where to get a Certificate First of all you need a valid digital certificate. You can get one for free by various Security Providers, for Germany especially for people from Hamburg, you can get such a certificate from the Trustcenter ( [1] ), other people may have a look at Thawte ( [2] ). These companies offer such a certificate for free with an expiration time of one year. After that you have to renew it if you like. If not you will not be able to sign documents any longer. If you do not trust these companies or want a higher Class Certificate you need to pay some money and the company will validate your personal data to make sure that you are the one you say you are. Such companies are Globalsign ( [3] ), Verisign ( [4] ) and also Trustcenter and Thawte. In combination with a Freemail Account you can get a digital certificate for Germany at Web.de ( [5] ). 1.1 How to make a certificate useable for StarOffice If you follow the process to get a certificate this will be installed ...
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