The document discusses the SPDY and QUIC protocols which aim to improve upon HTTP. SPDY focuses on multiplexing, prioritization, header compression, and server push/hints. QUIC aims to eliminate head-of-line blocking, support 0RTT connections, recover lost packets, and survive network changes. Both protocols aim to improve web performance but also face security challenges around things like certificate revocation and content inspection. The future may see both protocols widely adopted in web clients, servers, and network infrastructure.

1. I want the next generation web here SPDY QUIC
A review of the SPDY and QUIC protocols

2. Agenda
•History
•What’s up with HTTP?
•SPDY
•QUIC
•Security
•The Future

3. About Me

4. About Me

5. About Me

6. Before we start
ASK

7. What is SPDY?
•What?
•Why?

8. What is QUIC?
•What?
•Why?

9. History
•HTTP 0.9 - First documented in 1991
•HTTP 1.0 - First documented in 1996
•HTTP 1.1 – Released in 1997
•HTTP 1.1 – Updated in 1999

10. What’s up with HTTP?
•Connections
•Latency
•Headers

11. What’s up with HTTP?
Home.aspx
Logo.jpg
Time

12. What’s up with HTTP?
Home.aspx
Logo.jpg
Time

13. What’s up with HTTP?
"A single-user client SHOULD
NOT maintain more than 2
connections with any server or
proxy"

14. What’s up with HTTP?
Source: Akamai State of the Internet Report

15. What’s up with HTTP 1.1?
Resources
Time

16. History
•183 Resources
•44 Domains
•25 HTML Pages
•2MB of text content

17. What’s up with HTTP?

18. What’s up with HTTP?
GET /news/ HTTP/1.1
Host: www.bbc.co.uk
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://www.bbc.co.uk/news/england/
Cookie: NTABS=B0; BBC-
UID=2583816c740b5213b567deae81f1f11c5e89720eae48c3293395badd482afad00Mozilla%2f5%2e0%20%28Windows%20N
T%206%2e1%3b%20WOW64%3b%20rv%3a27%2e0%29%20Gecko%2f20100101%20Firefox%2f27%2e0;
BGUID=e513614cf47b72b7916877ff1183a8509e60292969e8942b1e4157e7578c4078; s1=531C4B275C0603BA;
ecos.dt=1400334549086; ckns_policy=111; ckpf_mandolin=%22footer-
promo%22%3A%7B%22segment%22%3Anull%2C%22end%22%3A%221400939293613%22%7D;
_chartbeat2=0nohd0na7hc3kcd7.1400334522757.1400334540677.1; _chartbeat_uuniq=1; BBCLiveStatsClick=nav|1|0
DNT: 1
Connection: keep-alive

19. What’s up with HTTP?
GET /news/ HTTP/1.1
Host: www.bbc.co.uk

20. SPDY
Source: The Chromium Projects

21. SPDY
•Multiplexing
•Prioritisation
•Header Compression
•Server Push & Server Hint

22. SPDY
•Multiplexing
•Prioritisation
•Header Compression
•Server Push & Server Hint

23. SPDY?
Home.aspx
Logo.jpg
Image.bmp
Logo.jpg
Image.bmp
Home.aspx

24. SPDY
•Multiplexing
•Prioritisation
•Header Compression
•Server Push & Server Hint

25. SPDY
•Multiplexing
•Prioritisation
•Header Compression
•Server Push & Server Hint

26. What’s up with HTTP?
GET /news/ HTTP/1.1
Host: www.bbc.co.uk
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://www.bbc.co.uk/news/england/
Cookie: NTABS=B0; BBC-
UID=2583816c740b5213b567deae81f1f11c5e89720eae48c3293395badd482afad00Mozilla%2f5%2e0%20%28Windows%20N
T%206%2e1%3b%20WOW64%3b%20rv%3a27%2e0%29%20Gecko%2f20100101%20Firefox%2f27%2e0;
BGUID=e513614cf47b72b7916877ff1183a8509e60292969e8942b1e4157e7578c4078; s1=531C4B275C0603BA;
ecos.dt=1400334549086; ckns_policy=111; ckpf_mandolin=%22footer-
promo%22%3A%7B%22segment%22%3Anull%2C%22end%22%3A%221400939293613%22%7D;
_chartbeat2=0nohd0na7hc3kcd7.1400334522757.1400334540677.1; _chartbeat_uuniq=1; BBCLiveStatsClick=nav|1|0
DNT: 1
Connection: keep-alive

27. SPDY
•Multiplexing
•Prioritisation
•Header Compression
•Server Push & Server Hint

28. SPDY

29. SPDY

30. SPDY

31. SPDY

32. SPDY

33. SPDY?
TLS Request +
Next Protocol
TLS Response
SPDY Request
SPDY Response

34. SPDY
•NPN Support Added 1.0.1
•ALPN Support Added 1.0.2

35. QUIC
•Remove head-of-line-blocking
•0RTT
•Recover lost packets
•Congestion control
•Network change survival

36. QUIC

37. QUIC

38. QUIC

39. QUIC
“The middle box problem”

40. QUIC
Connect
Certificate
Negotiation
Response

41. Security

42. SPDY Security
•Header injection

43. SPDY Security
“complexity is the worst enemy of
security”
"The only way to evaluate the
security of a system is to analyze it“
Source: Bruce Schneier

44. SPDY Security

45. Security
•Certificate Revocation
•Malicious servers
•Content inspection
•Other new attack vectors

46. Security

47. QUIC Security
•Privacy
•Authentication
•Integrity

48. QUIC Security
•Replay Protection
•Dos Protection
•Address Spoofing Detection

49. QUIC Security

50. QUIC Security
•Cross-connection attacks?
•Embryonic attacks?
•Memory exhaustion?
•DDoS

51. The Future
•Web Clients
•Web Servers
•Internet Infrastructure
•Network Infrastructure
•SSL Stacks

52. The Future

53. The Future
•Libspdy - C
•Net-http-spdy – Ruby
•Spdylay – Python
•http2-katana – C#
•Jetty – Java
•Erlnag-spdy - Erlang

54. The Future

55. Fin
Questions?
Matt.summers@nccgroup.com
@dive_monkey

56. Europe
Manchester - Head Office
Cheltenham
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Leatherhead
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Zurich
North America
Atlanta
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