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Questions and Answers
What is the purpose of the WS-Security framework?
What is the purpose of the WS-Security framework?
To provide security protection at the message level
What does the WS-Security Framework protect against?
What does the WS-Security Framework protect against?
A security token is a credential that proves the identity, such as ________.
A security token is a credential that proves the identity, such as ________.
X.509
Match the following WS-Security options with their descriptions:
Match the following WS-Security options with their descriptions:
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XML Encryption ensures the confidentiality of SOAP messages.
XML Encryption ensures the confidentiality of SOAP messages.
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Study Notes
Message Level Security
- Message-Level Security provides security protection above the transport level, using the WS-Security framework.
- WS-Security defines SOAP headers that include necessary information to protect messages.
WS-Security Framework
- A set of specifications that augment SOAP message headers to incorporate solutions to common security threats.
- Protects against message alteration and message disclosure.
- Designed to work with SOAP 1.1 and SOAP 1.2.
- Defines security tokens and encryption mechanisms that go in the SOAP header.
Security Tokens
- A credential that proves identity.
- Examples: X.509, Kerberos, SAML.
- A web service might request additional proof after accepting the credential.
- A digital signature might be sent along with the certificate to authenticate the identity.
Managing Security Tokens
- A username accompanying a password.
- A ticket is encrypted by its issuer using a key that the web service can verify.
WS-Security Options
- WS-Security explicitly defines four options:
- Username
- Binary
- XML
- Token reference
- The simplest way is to send a security token containing a user name and a password.
Binary Security Token
- Contains a certified ticket (for example Kerberos).
Security Token Reference
- Send a reference to a security token rather than the token itself.
- The
elementcontains a URI for a security token.
Message Integrity
- Leveraging XML signature in conjunction with security tokens to ensure messages are transmitted without modifications.
- Signatures might be added by SOAP intermediaries.
- The
elementprovides information to the service provider as to which key was used to create a signature.
XML Encryption
- Provides confidentiality in conjunction with security tokens to keep portions of SOAP message confidential.
- The encryption information references a security token when that token is used to encrypt the data.
WS-SecurityPolicy
- Provides a way for the requestor and provider to agree on which options are being used.
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Description
This quiz covers the basics of message level security in web services, including the WS-Security framework and its role in protecting SOAP messages. Learn about the security threats and solutions provided by WS-Security.
