Table of Contents
Digital Signatures and Public Key Infrastructures
Content
Cryptography
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Confidentialty
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Why do we need Certification Services?
Why do we need Certification?
Trust
Different Approaches
PGP Trust Model
PEM Trust Model
PEM Trust Model
Where are we now?
Certification system requirements
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PKI Components for Digital Signatures
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PKIX - MANDATORY SCHEMES
PKIX - CENTRALISED SCHEME
PKIX - BASIC AUTHENTICATED SCHEME
PKIX - PROOF OF POSSESSION OF PRIVATE KEY (POP)
POP - ENCRYPTION KEY - DIRECT METHOD USING A RA (challenge - response)
POP - ENCRYPTION KEY - INDIRECT METHOD
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PKCS: Public Key Cryptography Standards
PKCS #1: RSA Cryptography
PKCS #7: Cryptographic Message Syntax
PKCS #11: Cryptographic Token Interface (Cryptoki)
PKCS #15: Cryptographic Token Information Format
Other PKCS Documents
Applications
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Secure E-Mail
EMail Security Requirements
Historic: Internet Privacy Enhanced Mail (PEM)
PEM Message Transformation
PEM Certification Structure
PEM-Message Signed
PEM-Message Encrypted
S/MIME
Overview: S/MIME Building Blocks
Internet Message Protocol Layers
Message Flow and Control Flow
The S/MIME Building Blocks
Overview of “Classic” Internet Mail
RFC 822 – Format of Text Messages
The S/MIME Building Blocks
Mechanisms Added by MIME
MIME Content Types
The S/MIME Building Blocks
What Are S/MIME Messages?
S/MIME Version 2
S/MIME Version 3
S/MIME Specification Elements
CMS Content Types In S/MIME
S/MIME “application/pkcs7-mime”
The S/MIME Building Blocks
Encrypted Message Structure
Example of Encrypted Message
Information to Assist Recipient’s UA
Format of CMS Enveloped Data
The S/MIME Building Blocks
Formats for Signed Messages
Format of CMS Signed Data
Fields in CMS Signed Data
Format of CMS SignerInfo
Fields in CMS SignerInfo
Format of Certificates-Only Message
Format of MIME “multipart/signed”
Example of MIME “multipart/signed”
S/MIMEv3 Algorithm Support
Web Security Requirements
Secure Transport Channels
SSL
SSL Layer in Internet Protocol Stack
Secure Sockets Layer Protocol (SSL)
SSL (cont’d)
IP Security
IP Security Features
AH and ESP Layering Options
IPsec Path Options
IP in the Protocol Hierarchy
IP Datagram Structure
IP Security Headers
Security Association
Security Association (cont'd)
Authentication Header (AH)
Encapsulating Security Payload (ESP)
Encapsulating Security Payload (ESP)
Encapsulating Security Payload (ESP)
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Key Management
Legal Aspects
Usability of Digital Signatures in a legal system requires ...
Legal Recognition: European Directive
European Directive Highlights
EESSI Charter
EESSI Objectives
EESSI standards overview
E-Sign Work Areas
Area D: Objective of the CWA
Area D: Structure of the Document
Area D: Services of the CSP
Area D: CSP System
Area D: Security Levels
Area D: Security Environment
Area D: Security Requirements
Area D: Assurance requirements
Area F: Directive Requirements for standardization of the SSCD
Area F: What is a secure signature creation device
ANNEX III of EC-Directive Requirements for secure signature-creation devices
Scope of Area G1
Area G1: Technical Issues
Area G1: Different requirements in different physical locations
Area G2: Validation process
Area G2: Validation environment
Area G2: Other issues
Conformity Assessment of Secure Signature Creation Devices
Conformity Assessment of Certification Service Providers
Conformity Assessment of Trustworthy Systems
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