Securing Web Services with WS-Security Demystifying WS-Security, WS-Policy, SAML, XML Signature, and XML Encryption

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ISBN: 9780672326516 | 0672326515
Cover: Paperback
Copyright: 5/12/2004

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You know how to build Web service applications using XML, SOAP, and WSDL, but can you ensure that those applications are secure? Standards development groups such as OASIS and W3C have released several specifications designed to provide security -- but how do you combine them in working applications?

Forewords	p. xx
Introduction	p. 1
Who This Book Is For	p. 1
About This Book	p. 1
How This Book Is Organized	p. 2
Basic Concepts of Web Services Security	p. 5
Web Services Basics: XML, SOAP, and WSDL	p. 6
XML and XML Schema	p. 6
SOAP	p. 7
WSDL	p. 9
UDDI	p. 9
Application Integration	p. 9
B2B Business Process Integration	p. 10
Portals	p. 11
Service-Oriented Architectures	p. 11
Definition of Web Services	p. 12
Security Basics	p. 12
Shared Key and Public Key Technologies	p. 13
Security Concepts and Definitions	p. 16
Web Services Security Basics	p. 19
XML Signature	p. 19
XML Encryption	p. 20
SAML	p. 20
WS-Security	p. 21
Trust Issues	p. 22
Other WS-Security-Related Specs	p. 22
Summary	p. 22
The Foundations of Web Services	p. 25
The Gestalt of Web Services	p. 25
Application Integration	p. 25
The Evolution of Distributed Computing	p. 28
The Inevitability of Web Services	p. 32
Security Challenges	p. 35
XML: Meta-Language for Data-Oriented Interchange	p. 37
Where XML Came From and Why It's Important	p. 38
XML and Web Services	p. 39
XML Namespaces	p. 39
XML Schema	p. 42
XML Transformations	p. 43
XML's Role in Web Services Security	p. 46
SOAP: XML Messaging and Remote Application Access	p. 49
Where SOAP Came From and Why It's Important	p. 50
SOAP Envelope	p. 52
SOAP Header	p. 53
SOAP Body	p. 53
SOAP Processing	p. 55
SOAP Attachments	p. 55
SOAP and Web Services Security	p. 55
WSDL: Schema for XML/SOAP Objects and Interfaces	p. 56
Where WSDL Came From and Why It's Important	p. 56
WSDL Elements	p. 58
WSDL and SOAP	p. 61
WSDL and Web Services Security	p. 61
UDDI: Publishing and Discovering Web Services	p. 62
ebXML and RosettaNet: Alternative Technologies for Web Services	p. 65
The Web Services Security Specifications	p. 65
Summary	p. 67
The Foundations of Distributed Message-Level Security	p. 69
The Challenges of Information Security for Web Services	p. 69
Security of Distributed Systems Is Hard	p. 69
Security of Exchanged Information (Messages) Is Harder	p. 70
Security of Web Services Is Hardest	p. 71
Shared Key Technologies	p. 72
Shared Key Encryption	p. 72
Kerberos	p. 75
Limitations of Shared Key Technologies	p. 76
Public Key Technologies	p. 76
Public Key Encryption	p. 76
Limitations of Public Key Encryption	p. 79
Digital Signature Basics	p. 80
A Digital Signature Expressed in XML	p. 85
Public Key Infrastructure	p. 86
SSL Transport Layer Security	p. 97
Summary	p. 102
Safeguarding the Identity and Integrity of XML Messages	p. 105
Introduction To and Motivation for XML Signature	p. 105
A W3C Standard	p. 105
Critical Building Block for WS-Security	p. 105
Close Associations with Web Services Security	p. 106
The Goal of Ensuring Integrity (and Usually Identity) and Non-repudiation Persistently	p. 106
XML Signature and XML Encryption: Fundamental Web Services Security Technologies	p. 106
XML Signature Fundamentals	p. 107
XML Signature Structure	p. 107
Basic Structure	p. 108
Specifying the Items Being Signed	p. 109
Types of XML Signatures	p. 109
The Signature Element Schema	p. 113
XML Signature Processing	p. 116
XML Signature Generation	p. 117
XML Signature Validation	p. 119
The XML Signature Elements	p. 120
The SignedInfo Element	p. 120
The CanonicalizationMethod Element and Canonicalization	p. 120
The SignatureMethod Element	p. 125
The Reference Element	p. 125
The Transform Element	p. 127
The DigestMethod Element	p. 132
The DigestValue Element	p. 133
The SignatureValue Element	p. 133
The Object Element	p. 133
The KeyInfo Element	p. 137
Security Strategies for XML Signature	p. 140
Using Transforms	p. 140
Knowing the Security Model	p. 141
Knowing Your Keys	p. 142
Signing Object Elements	p. 142
Signing DTDs with Entity References	p. 142
Summary	p. 144
Ensuring Confidentiality of XML Messages	p. 147
Introduction to and Motivation for XML Encryption	p. 147
Relating XML Encryption and XML Signature	p. 147
Critical Building Block for WS-Security	p. 148
The Goal Is to Ensure Confidentiality of Messages from End to End with Different Recipients	p. 149
Think Shared Key Cryptography When You Think of XML Encryption	p. 149
XML Encryption Will Become Part of the Infrastructure Like XML Signature	p. 149
XML Encryption Fundamentals	p. 150
XML Encryption Structure	p. 151
EncryptedData: The Core of XML Encryption	p. 151
EncryptedData Schema	p. 152
EncryptedType	p. 153
EncryptionMethod	p. 154
CipherData	p. 154
EncryptionProperties	p. 155
KeyInfo	p. 156
EncryptedKey	p. 157
AgreementMethod	p. 159
ReferenceList	p. 160
CarriedKeyName	p. 161
Super Encryption	p. 162
XML Encryption Processing	p. 163
Encryption Process	p. 163
Decryption Process	p. 164
Using XML Encryption and XML Signature Together	p. 165
The Decryption Transform for XML Signature	p. 168
XML Encryption and XML Signature Strategies	p. 175
Summary	p. 176
Portable Identity, Authentication, and Authorization	p. 177
Introduction to and Motivation for SAML	p. 178
The Problems SAML Addresses	p. 179
Transporting Identity or "Portable Trust"	p. 181
The Concept of Trust Assertions	p. 181
How SAML Works	p. 181
SAML Assertions	p. 184
SAML Producers and Consumers	p. 188
SAML Protocol	p. 189
Authorization Request	p. 191
SAML Bindings	p. 192
SAML Profiles	p. 194
Using SAML with WS-Security	p. 195
The WS-Security SAML Profile	p. 196
Applying SAML: Project Liberty	p. 197
The Identity Problem	p. 197
Federated Identity	p. 197
How Liberty Uses SAML	p. 198
The Microsoft Passport Alternative Approach	p. 199
Summary	p. 200
Building Security into SOAP	p. 201
Introduction to and Motivation for WS-Security	p. 201
Problems and Goals	p. 201
The Origins of WS-Security	p. 205
WS-Security Is Foundational	p. 206
Extending SOAP with Security	p. 206
Security Tokens in WS-Security	p. 208
UsernameToken	p. 209
BinarySecurityTokens	p. 212
XML Tokens	p. 215
Referencing Security Tokens	p. 220
Providing Confidentiality: XML Encryption in WS-Security	p. 222
Shared Key XML Encryption	p. 222
Wrapped Key XML Encryption	p. 223
Encrypting Attachments	p. 224
WS-Security Encryption Summary	p. 227
Providing Integrity: XML Signature in WS-Security	p. 227
XML Signature for Validating a Security Token	p. 227
XML Signature for Message Integrity	p. 228
XML Signature in WS-Security Considerations	p. 228
WS-Security XML Signature Example	p. 228
Signing a Security Token Reference	p. 229
Message Time Stamps	p. 230
Summary	p. 232
Communicating Security Policy	p. 235
WS-Policy	p. 235
WS-Policy and WSDL	p. 236
WS-Policy and WS-SecurityPolicy	p. 236
The WS-Policy Framework	p. 237
WS-Policy Details	p. 238
WS-PolicyAssertions	p. 240
WS-PolicyAttachment	p. 241
Specifying WS-Policy in WSDL	p. 242
WS-SecurityPolicy	p. 245
SecurityToken	p. 245
Integrity	p. 248
Confidentiality	p. 250
Visibility	p. 251
SecurityHeader	p. 252
MessageAge	p. 253
Summary	p. 253
Trust, Access Control, and Rights for Web Services	p. 255
The WS-* Family of Security Specifications	p. 255
WS-* Security Specifications for Trust Relationships	p. 258
WS-* Security Specifications for Interoperability	p. 265
WS-* Security Specifications for Integration	p. 269
XML Key Management Specification (XKMS)	p. 272
Origins of XKMS	p. 272
Goals of XKMS	p. 272
The XKMS Services	p. 273
eXtensible Access Control Markup Language (XACML) Specification	p. 279
The XACML Data Model	p. 280
XACML Operation	p. 281
XACML Policy Example	p. 282
eXtensible Rights Markup Language (XrML) Management Specification	p. 284
The XrML Data Model	p. 285
XrML Use Case Example	p. 285
Summary	p. 290
Building a Secure Web Service Using BEA's WebLogic Workshop	p. 293
Security Layer Walkthrough	p. 294
Transport-Level Security	p. 295
Message-Level Security	p. 296
Role-Based Security	p. 297
WebLogic Workshop Web Service Walkthrough	p. 297
Transport Security	p. 302
Message-Based Security	p. 312
Summary	p. 330
Security, Cryptography, and Protocol Background Material	p. 331
The SSL Protocol	p. 331
Testing for Primality	p. 333
RSA Cryptography	p. 334
Choosing RSA Key Pairs	p. 335
Padding	p. 335
RSA Encryption	p. 335
RSA Decryption	p. 336
DSA Digital Signature Algorithms	p. 336
DSA Key Generation	p. 336
DSA Algorithm Operation	p. 337
Block Cipher Processing	p. 337
Block Cipher Padding (PKCS#5)	p. 337
Block Cipher Feedback	p. 338
DES Encryption Algorithm	p. 338
AES Encryption Algorithm	p. 339
Hashing Details and Requirements	p. 339
Motivation for Using Hash Functions	p. 340
Requirements for Digital Signature	p. 340
SHA1	p. 340
Collision Resistance	p. 341
Security	p. 341
Simplicity and Efficiency	p. 341
Silvio Micali's Fast Validation/Revocation	p. 341
Validity Check	p. 342
Revocation	p. 343
Canonicalization of Messages for Digital Signature Manifests	p. 343
Canonicalization V1 Transform Steps	p. 343
Canonicalization Subtleties: Exclusive Canonicalization	p. 344
Base-64 Encoding	p. 345
PGP	p. 346
Glossary	p. 347
Index	p. 367
Table of Contents provided by Ingram. All Rights Reserved.

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Securing Web Services with WS-Security Demystifying WS-Security, WS-Policy, SAML, XML Signature, and XML Encryption

Summary

Author Biography

Table of Contents

Supplemental Materials

FREE SHIPPING

Rent More, Save More! Use code: BBRENTAL

5% off 1 book, 7% off 2 books, 10% off 3+ books

Securing Web Services with WS-Security Demystifying WS-Security, WS-Policy, SAML, XML Signature, and XML Encryption

Summary

Author Biography

Table of Contents

Supplemental Materials

Digital License