Performance Enhancements and Memory Footprint Reduction in mbedtls_internal_sha(256|512)_process_c()#9542

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manoel-serafim wants to merge 10 commits intoMbed-TLS:developmentfrom manoel-serafim:development

+191-55

Commits on Sep 13, 2024

[opt_perf] (sha256.c) :: Recicled word schedule loop for immediate use inside the first 16 intermediate hash calculations
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(opt_perf) [sha256.c] :: Initiallization unrrolled for uses outside of MBEDTLS_SHA256_SMALLER
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(opt_perf) [sha256.c] :: Instead of adding to the index references of K, now we directly add to i and use it as a general index as it should be used
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(opt_perf) [sha256.c] :: Intermediate digest final compression addition is unrroled for performance, however continues in a loop when MBEDTLS_SHA256_SMALLER is defined
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(opt_perf) [sha256.c] :: Made MBEDTLS_SHA256_SMALLER even smaller by rolling one loop
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(opt_perf) [sha256.c] :: Shifting instead of multiplying
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(opt_perf&footprint) [sha512.c] :: Made the same changes of sha256 to sha512 also
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(fact) [sha512.c + sha256.c] :: Get rid of trailing whitespaces
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(fact_pr) [*.bak] Removes all .bak files from traking
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(fact) [sha256.c, sha512.c] :: uncrustified the code
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