OSX/libsecurity_apple_csp/README

   1                    libsecurity_apple_csp Notes
   2
   3 To build this project in a Darwin environment (as opposed to building in-house
   4 at Apple), use the Darwin buildstyle. If you're building with Xcode, select
   5 "Darwin" from the "Active Build Style" popup. If you're building from the command
   6 line, specify the build style like so:
   7
   8 % xcodebuild -buildstyle Darwin install
   9
  10 This build style is necessitated by the fact that the CSP built at (and
  11 shipped by) Apple includes some algorithms which are proprietary to Apple;
  12 the source code for these algorithms is not open source. Selecting the
  13 Darwin build style allows the CSP (and hence Security.framework, which also
  14 must be built with the Darwin build style) to be built from the Darwin
  15 open source tree without requiring the source for these algorithms.
  16
  17 The algorithms avoided by selecting the Darwin build style are as follows:
  18
  19 CSSM_ALGID_ASC
  20    Apple Secure Compression, a symmetric encryption algorithm
  21    which performs simultaneous encryption and compression.
  22
  23 CSSM_ALGID_FEE
  24 CSSM_ALGID_FEED
  25 CSSM_ALGID_FEEDEXP
  26 CSSM_ALGID_FEE_MD5
  27 CSSM_ALGID_FEE_SHA1
  28 CSSM_ALGID_SHA1WithECDSA
  29 CSSM_ALGID_ECDSA
  30    Asymmetric encryption using Apple's patented Fast Elliptic Encryption
  31    algorithm.
  32