13eeedb5d1
SHA-1 is weak and we need to transition to a new hash function. For some time, we have referred to this new function as NewHash. Recently, we decided to pick SHA-256 as NewHash. The reasons behind the choice of SHA-256 are outlined in the thread starting at [1] and in the commit history for the hash function transition document. Add a basic implementation of SHA-256 based off libtomcrypt, which is in the public domain. Optimize it and restructure it to meet our coding standards. Pull in the update and final functions from the SHA-1 block implementation, as we know these function correctly with all compilers. This implementation is slower than SHA-1, but more performant implementations will be introduced in future commits. Wire up SHA-256 in the list of hash algorithms, and add a test that the algorithm works correctly. Note that with this patch, it is still not possible to switch to using SHA-256 in Git. Additional patches are needed to prepare the code to handle a larger hash algorithm and further test fixes are needed. [1] https://public-inbox.org/git/20180609224913.GC38834@genre.crustytoothpaste.net/ Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
58 lines
2.5 KiB
C
58 lines
2.5 KiB
C
#ifndef __TEST_TOOL_H__
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#define __TEST_TOOL_H__
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#include "git-compat-util.h"
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int cmd__chmtime(int argc, const char **argv);
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int cmd__config(int argc, const char **argv);
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int cmd__ctype(int argc, const char **argv);
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int cmd__date(int argc, const char **argv);
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int cmd__delta(int argc, const char **argv);
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int cmd__drop_caches(int argc, const char **argv);
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int cmd__dump_cache_tree(int argc, const char **argv);
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int cmd__dump_fsmonitor(int argc, const char **argv);
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int cmd__dump_split_index(int argc, const char **argv);
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int cmd__dump_untracked_cache(int argc, const char **argv);
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int cmd__example_decorate(int argc, const char **argv);
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int cmd__genrandom(int argc, const char **argv);
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int cmd__hashmap(int argc, const char **argv);
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int cmd__hash_speed(int argc, const char **argv);
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int cmd__index_version(int argc, const char **argv);
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int cmd__json_writer(int argc, const char **argv);
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int cmd__lazy_init_name_hash(int argc, const char **argv);
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int cmd__match_trees(int argc, const char **argv);
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int cmd__mergesort(int argc, const char **argv);
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int cmd__mktemp(int argc, const char **argv);
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int cmd__online_cpus(int argc, const char **argv);
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int cmd__parse_options(int argc, const char **argv);
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int cmd__path_utils(int argc, const char **argv);
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int cmd__pkt_line(int argc, const char **argv);
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int cmd__prio_queue(int argc, const char **argv);
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int cmd__reach(int argc, const char **argv);
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int cmd__read_cache(int argc, const char **argv);
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int cmd__read_midx(int argc, const char **argv);
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int cmd__ref_store(int argc, const char **argv);
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int cmd__regex(int argc, const char **argv);
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int cmd__repository(int argc, const char **argv);
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int cmd__revision_walking(int argc, const char **argv);
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int cmd__run_command(int argc, const char **argv);
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int cmd__scrap_cache_tree(int argc, const char **argv);
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int cmd__sha1(int argc, const char **argv);
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int cmd__sha1_array(int argc, const char **argv);
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int cmd__sha256(int argc, const char **argv);
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int cmd__sigchain(int argc, const char **argv);
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int cmd__strcmp_offset(int argc, const char **argv);
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int cmd__string_list(int argc, const char **argv);
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int cmd__submodule_config(int argc, const char **argv);
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int cmd__subprocess(int argc, const char **argv);
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int cmd__urlmatch_normalization(int argc, const char **argv);
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int cmd__wildmatch(int argc, const char **argv);
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#ifdef GIT_WINDOWS_NATIVE
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int cmd__windows_named_pipe(int argc, const char **argv);
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#endif
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int cmd__write_cache(int argc, const char **argv);
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int cmd_hash_impl(int ac, const char **av, int algo);
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#endif
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