Introduction to Public Key Encryption and Java Security Mechanism of Internet Explorer and Netscape.
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Introduction to Public Key Encryption and Java Security Mechanism of Internet Explorer and Netscape. Cheng-Wen Chen. Internet Security Issues. Eavesdropping Tampering Impersonation. Public Key Cryptography. Encrypt & Decrypt Detect Tampering Identify Signer (Authentication) Nonrepudiation.

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Internet Security Issues

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Internet security issues

Introduction to Public Key Encryption and Java Security Mechanism of Internet Explorer and Netscape.Cheng-Wen Chen


Internet security issues

Internet Security Issues

  • Eavesdropping

  • Tampering

  • Impersonation


Public key cryptography

Public Key Cryptography

  • Encrypt & Decrypt

  • Detect Tampering

  • Identify Signer (Authentication)

  • Nonrepudiation


Encrypt decrypt

Encrypt & Decrypt


Detect tampering

Detect Tampering


Identify signer

Identify Signer

  • Digital certificate

  • To identify individuals, companies…

  • Certificate Authority (CA)


Outside sandbox netscape

Outside Sandbox - Netscape

  • Capability class

  • Fine-grained access control

  • netscape.security.PrivilegeManager.enablePrivilege(“UniversalPrintJobAccess”);

  • key3.db

  • cert7.db


Outside sandbox ie

Outside Sandbox - IE

  • Cabnet file

  • Default Permission

  • yourKeyName.pvk

  • yourCertName.spc


  • Login