Secured SOA
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Prabath Siriwardana - WSO2 SOA Security Architect, gives out a presentation on secured SOA at the SOA workshop in Colombo, Sri Lanka (September 17, 2009).
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Secured SOA
- 1. Secured SOA By Prabath Siriwardena ~ WSO2
- 3. WSO2 NO: 59 Flower Road, Colombo 07, Sri Lanka
- 4. Ruchith Fernando Security Lead WSO2, 2006 – 2008 Now, PhD student at University of Purdue
- 8. People Can SEE What You Send
- 9. People Can ALTER What You Send
- 10. Anyone Can CALL Your Service
- 11. People SEE What’s On HTTP
- 12. People Can ALTER What’s On HTTP
- 13. HTTP is NOT Secured
- 14. S HTTP
- 15. HTTPS is Transport Level
- 18. Security inherited from the transport channel
- 19. Safe only while on the transport
- 20. Parts of the message CANNOT BE encrypted
- 23. BasicAuth
- 28. SSL Handshake
- 29. CLIENT_HELLO Highest SSL Version, Ciphers Supported, Data Compression Methods, SessionId = 0, Random Data
- 30. SERVER_HELLO Selected SSL Version, Selected Cipher, Selected Data Compression Method, Assigned Session Id, Random Data
- 31. CERTIFICATE Public Key, Authentication Signature
- 32. CLIENT_CERT_REQUEST [Optional]
- 35. CERTIFICATE_VERIFY [Optional]
- 37. FINISHED
- 39. FINISHED
- 40. MONDAY Morning
- 41. NOT Happy With HTTPS
- 42. Requires END To END Security
- 43. Parts of message need to be Encrypted
- 44. <soap:Envelope > <soap:Body> <ns1:withdrawMoney > <param1></ param1> <param2></ param2> <param3></ param3> </ ns1:withdrawMoney > </soap:Body> </soap:Envelope>
- 45. <soap:Envelope > <soap:Body> <ns1:withdrawMoney > <param1></ param1> <param2></ param2> <param3></ param3> </ ns1:withdrawMoney > </soap:Body> </soap:Envelope>
- 47. XML Encryption
- 48. XML Signature
- 49. WS - Security
- 50. Confidentiality
- 51. Integrity
- 53. Authentication
- 54. UsernameToken
- 55. <wsse:UsernameToken wsu:Id="Example-1"> <wsse:Username> ... </wsse:Username> <wsse:Password Type="..."> ... </wsse:Password> <wsse:Nonce EncodingType="..."> ... </wsse:Nonce> <wsu:Created> ... </wsu:Created> </wsse:UsernameToken>
- 56. NOBODY Can See the Message in Clear Text Other than the Intended Recipient
- 57. NOBODY In the Middle Can ALTER the Message
- 58. Only the Authenticated Users Can Invoke the Service
- 59. WS - Security XML Username X.509 Token XML Signature Encryption Token Profile Profile
- 60. DONE with My First Assignment
- 61. BUT… Paul NOT Happy
- 62. Authentication LIMITED to INTERNAL Users ONLY
- 63. Users OUT SIDE Our Domain Need ACCESS
- 64. We DON’T Have Their Credentials
- 66. Delegate Authentication to the External Domain itself
- 67. They Should Know How to Authenticate Their Own Users
- 68. We TRUST What the External Domain Says
- 70. WS-TRUST
- 71. <s:Envelope> <s:Header> <wsa:Action> http://docs.oasis-open.org/ws-sx/ws-trust/200512/RST/Issue </wsa:Action> </s:Header> <s:Body> <wst:RequestSecurityToken> <wst:TokenType> http://example.org/mySpecialToken </wst:TokenType> <wst:RequestType> http://docs.oasis-open.org/ws-sx/ws-trust/200512/Issue </wst:RequestType> </wst:RequestSecurityToken> </s:Body> </s:Envelope>
- 72. <s:Envelope> <s:Header> <wsa:Action> http://docs.oasis-open.org/ws-sx/ws-trust/200512/RSTR/Issue </wsa:Action> </s:Header> <s:Body> <wst:RequestSecurityTokenResponseCollection> <wst:RequestSecurityTokenResponse> <wst:RequestedSecurityToken> <xyz:CustomToken xmlns:xyz="..."> </xyz:CustomToken> </wst:RequestedSecurityToken> </wst:RequestSecurityTokenResponse> </wst:RequestSecurityTokenResponseCollection> </s:Body> </s:Envelope>
- 73. WS - Trust WS - Security Username X.509 XML XML Token Token Signature Encryption Profile Profile
- 74. Another Problem on HAND…
- 75. How Do We Communicate our Security Requirements to Outsiders ?
- 76. The Encryption Algorithm We Use…
- 77. Key Size…
- 78. Token Types…
- 79. Elements to be Signed…
- 80. Elements to be Encrypted…
- 81. Use Symmetric Key or Asymmetric Key…
- 83. Finally… We All Moved to the White Board…
- 87. Thank You…!!!