What is. Digital Certificate It is an identity

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What is Slide 2 Digital Certificate Slide 3 It is an identity. Slide 4 It is Slide 5 From webopedia An attachment to an electronic message used for security purposes. The most common use of a digital certificate is to verify that a user sending a message is who he or she claims to be, and to provide the receiver with the means to encode a reply. An individual wishing to send an encrypted message applies for a digital certificate from a Certificate Authority (CA). The CA issues an encrypted digital certificate containing the applicant's public key and a variety of other identification information. The CA makes its own public key readily available through print publicity or perhaps on the Internet.attachmentsecurityencryptedCertificate Authority (CA)public keyInternet The recipient of an encrypted message uses the CA's public key to decode the digital certificate attached to the message, verifies it as issued by the CA and then obtains the sender's public key and identification information held within the certificate. With this information, the recipient can send an encrypted reply. From WhatIs.com A digital certificate is an electronic "credit card" that establishes your credentials when doing business or other transactions on the Web. It is issued by a certification authority (CA). It contains your name, a serial number, expiration dates, a copy of the certificate holder's public key (used for encrypting messages and digital signatures), and the digital signature of the certificate-issuing authority so that a recipient can verify that the certificate is real. Some digital certificates conform to a standard, X.509. Digital certificates can be kept in registries so that authenticating users can look up other users' public keys.CApublic keydigital signature Definitions Slide 6 Mess Slide 7 An electronic Slide 8 ID card Slide 9 for Identify Slide 10 To Identify Slide 11 You Slide 12 What can Slide 13 represent you? Slide 14 Verbal.. Slide 15 Slide 16 ID card Slide 17 Driving License Slide 18 Signature Slide 19 3 Slide 20 (1) Slide 21 Uniqueness Slide 22 (2) Slide 23 Related to you Slide 24 ID card Slide 25 Slide 26 (3) Slide 27 Authorities Slide 28 Slide 29 Slide 30 Slide 31 Slide 32 Trust Party Slide 33 Trust Slide 34 Authorities Slide 35 Internet Slide 36 You Slide 37 Verbal.. Slide 38 Slide 39 MSN Slide 40 Slide 41 Slide 42 Slide 43 Trust no more Slide 44 E-commerce Slide 45 Slide 46 Slide 47 Who are You Slide 48 ? Slide 49 Digital Slide 50 ID card Slide 51 Driving License Slide 52 Slide 53 Digital Signature Slide 54 Digital Certificate Slide 55 Slide 56 End section [Background] Slide 57 System Slide 58 PKI Slide 59 (Public Key Infrastructure) Slide 60 Design Slide 61 For identify Slide 62 Digital Signature Slide 63 Digital Certificate Slide 64 How it works? Slide 65 Sender...encryptsend..his signature and cert..to serverCA confirms it.. receiver check. the..resultdecryptget the message..etc.etc.etc Slide 66 Example Slide 67 David Slide 68 Juno Slide 69 Junos Private Key Slide 70 Lese piks S! C! lnestssos Slide 71 Lets skip CS lessons !! Slide 72 David Slide 73 Slide 74 CA (Certificate Authority) Slide 75 Slide 76 Third Trust Party Slide 77 CK Company Slide 78 certificate and a randomly generated data which has encrypted with his private key to the CA The CA will check the certificate with its database and use the public key to decrypt the data. The encrypted data act like a digital signature and can be thought of as evidence provided by the user. So if the certificate is true and the data is decrypted, the user then gets the authentication from the CA. Slide 79 Old School Slide 80 Public Private Slide 81 However Slide 82 Efficiency Slide 83 PKI Slide 84 C 2 Slide 85 Server Slide 86 Slide 87 End section [System] Slide 88 Deeper Slide 89 Theory Slide 90 1. Slide 91 The encryption Slide 92 What is Slide 93 Public Private ? Slide 94 Sorry. Slide 95 Covered Slide 96 End section [Theory] Slide 97 Last Part Slide 98 Slide 99 Certificate Authority Slide 100 How to Slide 101 Choose Slide 102 That word again Slide 103 Trust Slide 104 - History Slide 105 - Trustworthy Slide 106 - Cost Slide 107 Slide 108 Slide 109 End [Presentation]