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README 2.4 KB
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  1. # s^2 Web Stuff
    2. 

  2. 

  3. s^2 is -- so far -- a personal project to write secure and sandboxed software
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  4. for doing things on the web. E.g. a web server and mail server and client.
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  5. In contrast to seemingly wide-held opinion, except perhaps by Intel,
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  6. it doesn't view speculative execution as an evil (*).
    7. 

  7. 

  8. (*)
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  9.   Except Meltdown and perhaps some others ... The model of Spectre I
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  10.   address is: all branches may temporarily be ignored or falsily taken and all
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  11.   indirect branch must be retpolined. Checking the page bits may be speculated.
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  12. 

  13.   s^2 should be safe against Speculative Store Bypass, Bounds Check Bypass,
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  14.   Branch Target Injection. Foreshadow is not relevant. Lazy FP State Restore
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  15.   is a bug of the kernel.
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  16. 

  17. As an extension to what nginx supports, s^2 will allow migration to
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  18. different versions and machines. The source code is intended to be readable.
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  19. 

  20. There is some architecture-specific code for Spectre mitigation.
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  21. Linux is supported, and the BSDs will be. W32 might be possible.
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  22. 

  23. Do `autoreconf` && `./configure` && `make` to compile.
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  24. 

  25. ## Stuff
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  26. 

  27. - [ ] apps/website.md: for static web sites, may be extended
    28. 

  28. - [ ] apps/torrent.md (TODO: bittorrent, webtorrent, Dat, IPFS, gnunet?)
    29. 

  29. - [ ] apps/mail.md: e-mail client and server, encrypted, signed, image support)
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  30. - [ ] apps/blog.md (TODO)
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  31. - [ ] apps/git.md (TODO)
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  32. - [ ] apps/ci.md (TODO)
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  33. 

  34. ## Some design details
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  35. 

  36. OO is used, except that inheritance isn't really used. Nothing is overridden.
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  37. Generics may be used sparely. SMP may be used for efficiency (power-efficiency
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  38. according to Intel?), but is not mandatory. Tasks of the same type are batched
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  39. to reduce cache pressure and branch misprediction.
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  40. 

  41. ## Contact
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  42. 

  43. Send a mail to Ariadne Devos <m-m@mailoo.org> or open a bug at
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  44. <https://notabug.org/ariadne/shttpd>. Patches, ideas and general discussion
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  45. are welcome.
    46. 

  46. 

  47. ## Legal stuff
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  48. 

  49. Copyright (C) 2018 Ariadne Devos
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  50. 

  51. This program is free software: you can redistribute it and/or modify
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  52. it under the terms of the GNU General Public License as published by
    53. 

  53. the Free Software Foundation, either version 3 of the License, or
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  54. (at your option) any later version.
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  55. 

  56. This program is distributed in the hope that it will be useful,
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  57. but WITHOUT ANY WARRANTY; without even the implied warranty of
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  58. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    59. 

  59. GNU General Public License for more details.
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  60. 

  61. You should have received a copy of the GNU General Public License
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  62. along with this program.  If not, see <http://www.gnu.org/licenses/>. */
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  63.