Digital certificate & signature
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  • 1. Compiled by: NETRI TKTCert :A Web-Based Authenticated & certified service August 8, 2009
  • 2. INTRODUCTION:
    • Digital Signature:
      • Type of Asymmetric Cryptography.
      • Simulates the security of a handwritten signature on paper.
    • Digital certificate:
      • Body of data placed in message.
      • Serves as proof of the sender’s authenticity.
      • Establishes your credentials when doing business or other transactions on the web.
    August 8, 2009
  • 3.
    • CA (Certificate Authority):
    • Trusted third party or Web of trust .
    • Provides meaningful authentication.
    • Provides that transmitting and receiving document not modified or viewed by third party.
    • Prevents ‘ man-in-the-middle’ attack on your web browser.
    August 8, 2009
  • 4. August 8, 2009
  • 5.
    • ROOT CERTIFICATE:
    • Unsigned public key certificate or a self-signed certificate that identifies
    • the Root CA.
    • Top-most certificate of the tree & used to "sign" other certificates.
    • All certificates below the root certificate inherit the trustworthiness of
    • the root certificate
    • CLIENT & SERVER SITE CERTIFICATES :
    • Digital credential that identifies the server or client application that uses the certificate for secure communications.
    August 8, 2009
  • 6.
      • Contain identifying information about the organization that owns the application.
      • server must have a digital certificate to use the Secure Sockets Layer (SSL).
    • Allows clients to use certificates to authenticate to resources instead of user names and passwords.
    • OBJECT-SIGNING CERTIFICATE:
    • Used to digitally "sign" an object.
    • By signing the object, you provide a means by which you verify both the object's integrity and the origination or ownership of the object.
    August 8, 2009
  • 7. : X.509 CERTIFICATE FORMAT August 8, 2009 Signature algo. identifier Period of validity Subject’s pub Key inf Signat-ure version certificate serial num Algorithm parameters Issuer name Not before Not after Subject name Algorithm issuer unique identifier subject unique identifier extension algorithm Parameter Encrypted parameters keys
  • 8.
    • SYSTEM ARCHITECTURE:
    August 8, 2009 System Architecture
  • 9.
    • WELCOME TO TKT CERT
    • HOME LOGIN POLICY RENEW GUIDELINES MYCERTIFICATE
    • DESCRIPTION OF TKT CERT
  • 10.
    • Information exchange with this site can,t be viewed or changed by third party..
    • Do you want to continue??
    YES NO VIEW CERTIFICATE
  • 11.
    • HOME LOGIN POLICY RENEW GUIDELINE MYCERTIFICATE
    • LOGIN
    • User Name:
    • Passphrase :
    • [ sign up for new account ?] [ lost your password?]
    LOGIN
  • 12.
    • HOME LOGIN POLICY RENEW GUIDELINE MYCERTIFICATE
    • Welcome to your Account of TKT cert.com
    • ABOUT ME
    • MY DETAILS
    • TYPES OF CERTIFICATES
    • PURPOSE
    • GUIDELINES
  • 13.
    • LOST PASSPHRASE
    • Email Address:
    • Date of birth:
    Next
  • 14. LOST PASSPHRASE
    • Question 1 st :
    • Question 3 rd :
    • Question 5 th :
    • New Passphrase :
    • Repeated :
    NEXT
  • 15.
    • HOME LOGIN POLICY RENEW GUIDELINES MYCERTIFICATE
    • TKT CERT certificate will be shown:
  • 16. REGISTRATION FORM August 8, 2009
  • 17.
    • HOME LOGIN POLICY RENEW GUIDELINES MYCERTIFICATE
    • Your password has been updated and your loginId has been notified of the change !!
  • 18.
    • Edit your Profile
    • Change your Passphrase
  • 19.
    • My profile details is shown
  • 20. August 8, 2009
  • 21. August 8, 2009
  • 22.
    • CERTIFICATE VERIFICATION PROCESS:
    August 8, 2009
  • 23. August 8, 2009
  • 24.
    • ROOT-HIERARCHY:
    August 8, 2009
  • 25. August 8, 2009
  • 26.
    • CLIENT-BROWSER CERTIFICATE VALIDATION :
    August 8, 2009
  • 27. August 8, 2009
  • 28. August 8, 2009
  • 29. August 8, 2009
  • 30. August 8, 2009
  • 31. August 8, 2009
  • 32.
    • DIGITAL CERTIFICATE WITH SIGNATURE :
    August 8, 2009
  • 33. August 8, 2009
  • 34. August 8, 2009
  • 35. August 8, 2009
  • 36. August 8, 2009 User serial no Certificate serial no Revocation date Certificate revocation list Registration Authority Revocation repository Reg_no Customer ID Date of registration CSR Date Certificate issue date Registration form
  • 37. CONCLUSION August 8, 2009
    • Secure Digital transactions- an important part of electronic commerce in the future.
    • Privacy of transactions, and authentication of all parties, is important for achieving the level of trust.
    • Encryption algorithms and key-sizes must be robust enough to prevent observation by hostile entities
  • 38. August 8, 2009