E-cert (Digital Certificate)

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Presentation transcript:

E-cert (Digital Certificate) 电子证书 (電子證書)

On the Internet, nobody knows you’re a dog. Extracted from http://scienceblogs.com/effectmeasure/internet_dog.jpg

What is it? An electronic file Considered as “electronic passport” Issuing body in Hong Kong Hong Kong Post (香港邮政) HK$50/year

Functions Authentication Encryption Verify the identity of someone Convert ordinary data into unreadable code

E-banking two-factor authentication In addition to account name and password

Problems of account name and password Bad passwords Birthday Name of wife/husband/pets Etc. User wrote it down and stick it on the monitor User tells others Re-use passwords

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