Optimized code for the tiger hash

Tiger is a hash function designed by Ross Anderson and Eli Biham. A free reference implementation in C and test results (for verifying correctness of an implementation) are available from [login to view URL]~biham/Reports/Tiger/, the code is in [login to view URL], the test results in [login to view URL] at this URL I need assembly code optimized for the AMD64/EM64T instruction set for this hash function. The requested deliverables are: 1) a very small program (C, optionally with gcc inline assembly) to test (by exit status or successful compilation) whether the build system supports the AMD64/EM64T instruction set 2) optimized AMD64/EM64T assembly code for the tiger checksum algorithm (the file tiger.c in the reference implementation), which fulfills the following criteria: a) can be used as drop-in replacement for tiger.c when compiling C code with gcc b) raises no compiler warnings with gcc 4 c) generates correct results (as mentioned, test results are available from the website) d) is commented e) is faster (by at least 10-20 per cent) than the reference implementation (as compiled with 'gcc -O3') ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux AMD64/EM64T