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Add a base implementation of SHA-256 support
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>
This commit is contained in:
brian m. carlson
Junio C Hamano
parent
c166599862
commit
13eeedb5d1
4
Makefile
4
Makefile
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@ -739,6 +739,7 @@ TEST_BUILTINS_OBJS += test-run-command.o
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TEST_BUILTINS_OBJS += test-scrap-cache-tree.o
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TEST_BUILTINS_OBJS += test-sha1.o
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TEST_BUILTINS_OBJS += test-sha1-array.o
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TEST_BUILTINS_OBJS += test-sha256.o
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TEST_BUILTINS_OBJS += test-sigchain.o
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TEST_BUILTINS_OBJS += test-strcmp-offset.o
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TEST_BUILTINS_OBJS += test-string-list.o
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@ -1633,6 +1634,9 @@ endif
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endif
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endif
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LIB_OBJS += sha256/block/sha256.o
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BASIC_CFLAGS += -DSHA256_BLK
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ifdef SHA1_MAX_BLOCK_SIZE
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LIB_OBJS += compat/sha1-chunked.o
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BASIC_CFLAGS += -DSHA1_MAX_BLOCK_SIZE="$(SHA1_MAX_BLOCK_SIZE)"
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12
cache.h
12
cache.h
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@ -48,11 +48,17 @@ unsigned long git_deflate_bound(git_zstream *, unsigned long);
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/* The block size of SHA-1. */
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#define GIT_SHA1_BLKSZ 64
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/* The length in bytes and in hex digits of an object name (SHA-256 value). */
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#define GIT_SHA256_RAWSZ 32
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#define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ)
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/* The block size of SHA-256. */
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#define GIT_SHA256_BLKSZ 64
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/* The length in byte and in hex digits of the largest possible hash value. */
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#define GIT_MAX_RAWSZ GIT_SHA1_RAWSZ
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#define GIT_MAX_HEXSZ GIT_SHA1_HEXSZ
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#define GIT_MAX_RAWSZ GIT_SHA256_RAWSZ
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#define GIT_MAX_HEXSZ GIT_SHA256_HEXSZ
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/* The largest possible block size for any supported hash. */
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#define GIT_MAX_BLKSZ GIT_SHA1_BLKSZ
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#define GIT_MAX_BLKSZ GIT_SHA256_BLKSZ
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struct object_id {
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unsigned char hash[GIT_MAX_RAWSZ];
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19
hash.h
19
hash.h
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@ -15,6 +15,8 @@
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#include "block-sha1/sha1.h"
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#endif
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#include "sha256/block/sha256.h"
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#ifndef platform_SHA_CTX
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/*
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* platform's underlying implementation of SHA-1; could be OpenSSL,
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@ -34,6 +36,18 @@
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#define git_SHA1_Update platform_SHA1_Update
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#define git_SHA1_Final platform_SHA1_Final
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#ifndef platform_SHA256_CTX
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#define platform_SHA256_CTX SHA256_CTX
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#define platform_SHA256_Init SHA256_Init
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#define platform_SHA256_Update SHA256_Update
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#define platform_SHA256_Final SHA256_Final
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#endif
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#define git_SHA256_CTX platform_SHA256_CTX
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#define git_SHA256_Init platform_SHA256_Init
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#define git_SHA256_Update platform_SHA256_Update
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#define git_SHA256_Final platform_SHA256_Final
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#ifdef SHA1_MAX_BLOCK_SIZE
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#include "compat/sha1-chunked.h"
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#undef git_SHA1_Update
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@ -52,12 +66,15 @@
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#define GIT_HASH_UNKNOWN 0
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/* SHA-1 */
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#define GIT_HASH_SHA1 1
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/* SHA-256 */
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#define GIT_HASH_SHA256 2
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/* Number of algorithms supported (including unknown). */
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#define GIT_HASH_NALGOS (GIT_HASH_SHA1 + 1)
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#define GIT_HASH_NALGOS (GIT_HASH_SHA256 + 1)
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/* A suitably aligned type for stack allocations of hash contexts. */
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union git_hash_ctx {
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git_SHA_CTX sha1;
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git_SHA256_CTX sha256;
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};
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typedef union git_hash_ctx git_hash_ctx;
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45
sha1-file.c
45
sha1-file.c
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@ -40,10 +40,20 @@
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#define EMPTY_TREE_SHA1_BIN_LITERAL \
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"\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
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"\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
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#define EMPTY_TREE_SHA256_BIN_LITERAL \
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"\x6e\xf1\x9b\x41\x22\x5c\x53\x69\xf1\xc1" \
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"\x04\xd4\x5d\x8d\x85\xef\xa9\xb0\x57\xb5" \
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"\x3b\x14\xb4\xb9\xb9\x39\xdd\x74\xde\xcc" \
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"\x53\x21"
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#define EMPTY_BLOB_SHA1_BIN_LITERAL \
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"\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \
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"\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91"
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#define EMPTY_BLOB_SHA256_BIN_LITERAL \
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"\x47\x3a\x0f\x4c\x3b\xe8\xa9\x36\x81\xa2" \
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"\x67\xe3\xb1\xe9\xa7\xdc\xda\x11\x85\x43" \
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"\x6f\xe1\x41\xf7\x74\x91\x20\xa3\x03\x72" \
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"\x18\x13"
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const unsigned char null_sha1[GIT_MAX_RAWSZ];
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const struct object_id null_oid;
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@ -53,6 +63,12 @@ static const struct object_id empty_tree_oid = {
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static const struct object_id empty_blob_oid = {
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EMPTY_BLOB_SHA1_BIN_LITERAL
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};
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static const struct object_id empty_tree_oid_sha256 = {
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EMPTY_TREE_SHA256_BIN_LITERAL
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};
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static const struct object_id empty_blob_oid_sha256 = {
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EMPTY_BLOB_SHA256_BIN_LITERAL
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};
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static void git_hash_sha1_init(git_hash_ctx *ctx)
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{
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@ -69,6 +85,22 @@ static void git_hash_sha1_final(unsigned char *hash, git_hash_ctx *ctx)
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git_SHA1_Final(hash, &ctx->sha1);
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}
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static void git_hash_sha256_init(git_hash_ctx *ctx)
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{
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git_SHA256_Init(&ctx->sha256);
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}
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static void git_hash_sha256_update(git_hash_ctx *ctx, const void *data, size_t len)
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{
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git_SHA256_Update(&ctx->sha256, data, len);
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}
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static void git_hash_sha256_final(unsigned char *hash, git_hash_ctx *ctx)
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{
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git_SHA256_Final(hash, &ctx->sha256);
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}
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static void git_hash_unknown_init(git_hash_ctx *ctx)
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{
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BUG("trying to init unknown hash");
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@ -110,6 +142,19 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
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&empty_tree_oid,
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&empty_blob_oid,
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},
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{
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"sha256",
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/* "s256", big-endian */
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0x73323536,
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GIT_SHA256_RAWSZ,
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GIT_SHA256_HEXSZ,
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GIT_SHA256_BLKSZ,
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git_hash_sha256_init,
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git_hash_sha256_update,
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git_hash_sha256_final,
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&empty_tree_oid_sha256,
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&empty_blob_oid_sha256,
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}
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};
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const char *empty_tree_oid_hex(void)
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@ -0,0 +1,196 @@
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#include "git-compat-util.h"
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#include "./sha256.h"
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#undef RND
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#undef BLKSIZE
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#define BLKSIZE blk_SHA256_BLKSIZE
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void blk_SHA256_Init(blk_SHA256_CTX *ctx)
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{
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ctx->offset = 0;
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ctx->size = 0;
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ctx->state[0] = 0x6a09e667ul;
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ctx->state[1] = 0xbb67ae85ul;
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ctx->state[2] = 0x3c6ef372ul;
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ctx->state[3] = 0xa54ff53aul;
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ctx->state[4] = 0x510e527ful;
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ctx->state[5] = 0x9b05688cul;
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ctx->state[6] = 0x1f83d9abul;
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ctx->state[7] = 0x5be0cd19ul;
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}
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static inline uint32_t ror(uint32_t x, unsigned n)
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{
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return (x >> n) | (x << (32 - n));
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}
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static inline uint32_t ch(uint32_t x, uint32_t y, uint32_t z)
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{
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return z ^ (x & (y ^ z));
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}
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static inline uint32_t maj(uint32_t x, uint32_t y, uint32_t z)
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{
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return ((x | y) & z) | (x & y);
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}
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static inline uint32_t sigma0(uint32_t x)
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{
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return ror(x, 2) ^ ror(x, 13) ^ ror(x, 22);
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}
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static inline uint32_t sigma1(uint32_t x)
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{
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return ror(x, 6) ^ ror(x, 11) ^ ror(x, 25);
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}
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static inline uint32_t gamma0(uint32_t x)
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{
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return ror(x, 7) ^ ror(x, 18) ^ (x >> 3);
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}
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static inline uint32_t gamma1(uint32_t x)
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{
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return ror(x, 17) ^ ror(x, 19) ^ (x >> 10);
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}
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static void blk_SHA256_Transform(blk_SHA256_CTX *ctx, const unsigned char *buf)
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{
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uint32_t S[8], W[64], t0, t1;
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int i;
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/* copy state into S */
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for (i = 0; i < 8; i++)
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S[i] = ctx->state[i];
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/* copy the state into 512-bits into W[0..15] */
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for (i = 0; i < 16; i++, buf += sizeof(uint32_t))
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W[i] = get_be32(buf);
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/* fill W[16..63] */
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for (i = 16; i < 64; i++)
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W[i] = gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16];
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#define RND(a,b,c,d,e,f,g,h,i,ki) \
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t0 = h + sigma1(e) + ch(e, f, g) + ki + W[i]; \
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t1 = sigma0(a) + maj(a, b, c); \
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d += t0; \
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h = t0 + t1;
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x71374491);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcf);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba5);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25b);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b01);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a7);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c1);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc6);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dc);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c8);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf3);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x14292967);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a85);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b2138);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d13);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a7354);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c85);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a1);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664b);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a3);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819);
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RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd6990624);
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RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e3585);
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RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa070);
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RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116);
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RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c08);
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RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774c);
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RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5);
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RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3);
|
||||
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4a);
|
||||
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f);
|
||||
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3);
|
||||
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee);
|
||||
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f);
|
||||
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814);
|
||||
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc70208);
|
||||
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa);
|
||||
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506ceb);
|
||||
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7);
|
||||
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2);
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
ctx->state[i] += S[i];
|
||||
}
|
||||
|
||||
void blk_SHA256_Update(blk_SHA256_CTX *ctx, const void *data, size_t len)
|
||||
{
|
||||
unsigned int len_buf = ctx->size & 63;
|
||||
|
||||
ctx->size += len;
|
||||
|
||||
/* Read the data into buf and process blocks as they get full */
|
||||
if (len_buf) {
|
||||
unsigned int left = 64 - len_buf;
|
||||
if (len < left)
|
||||
left = len;
|
||||
memcpy(len_buf + ctx->buf, data, left);
|
||||
len_buf = (len_buf + left) & 63;
|
||||
len -= left;
|
||||
data = ((const char *)data + left);
|
||||
if (len_buf)
|
||||
return;
|
||||
blk_SHA256_Transform(ctx, ctx->buf);
|
||||
}
|
||||
while (len >= 64) {
|
||||
blk_SHA256_Transform(ctx, data);
|
||||
data = ((const char *)data + 64);
|
||||
len -= 64;
|
||||
}
|
||||
if (len)
|
||||
memcpy(ctx->buf, data, len);
|
||||
}
|
||||
|
||||
void blk_SHA256_Final(unsigned char *digest, blk_SHA256_CTX *ctx)
|
||||
{
|
||||
static const unsigned char pad[64] = { 0x80 };
|
||||
unsigned int padlen[2];
|
||||
int i;
|
||||
|
||||
/* Pad with a binary 1 (ie 0x80), then zeroes, then length */
|
||||
padlen[0] = htonl((uint32_t)(ctx->size >> 29));
|
||||
padlen[1] = htonl((uint32_t)(ctx->size << 3));
|
||||
|
||||
i = ctx->size & 63;
|
||||
blk_SHA256_Update(ctx, pad, 1 + (63 & (55 - i)));
|
||||
blk_SHA256_Update(ctx, padlen, 8);
|
||||
|
||||
/* copy output */
|
||||
for (i = 0; i < 8; i++, digest += sizeof(uint32_t))
|
||||
put_be32(digest, ctx->state[i]);
|
||||
}
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
#ifndef SHA256_BLOCK_SHA256_H
|
||||
#define SHA256_BLOCK_SHA256_H
|
||||
|
||||
#define blk_SHA256_BLKSIZE 64
|
||||
|
||||
struct blk_SHA256_CTX {
|
||||
uint32_t state[8];
|
||||
uint64_t size;
|
||||
uint32_t offset;
|
||||
uint8_t buf[blk_SHA256_BLKSIZE];
|
||||
};
|
||||
|
||||
typedef struct blk_SHA256_CTX blk_SHA256_CTX;
|
||||
|
||||
void blk_SHA256_Init(blk_SHA256_CTX *ctx);
|
||||
void blk_SHA256_Update(blk_SHA256_CTX *ctx, const void *data, size_t len);
|
||||
void blk_SHA256_Final(unsigned char *digest, blk_SHA256_CTX *ctx);
|
||||
|
||||
#define platform_SHA256_CTX blk_SHA256_CTX
|
||||
#define platform_SHA256_Init blk_SHA256_Init
|
||||
#define platform_SHA256_Update blk_SHA256_Update
|
||||
#define platform_SHA256_Final blk_SHA256_Final
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
#include "test-tool.h"
|
||||
#include "cache.h"
|
||||
|
||||
int cmd__sha256(int ac, const char **av)
|
||||
{
|
||||
return cmd_hash_impl(ac, av, GIT_HASH_SHA256);
|
||||
}
|
||||
|
|
@ -43,6 +43,7 @@ static struct test_cmd cmds[] = {
|
|||
{ "scrap-cache-tree", cmd__scrap_cache_tree },
|
||||
{ "sha1", cmd__sha1 },
|
||||
{ "sha1-array", cmd__sha1_array },
|
||||
{ "sha256", cmd__sha256 },
|
||||
{ "sigchain", cmd__sigchain },
|
||||
{ "strcmp-offset", cmd__strcmp_offset },
|
||||
{ "string-list", cmd__string_list },
|
||||
|
|
|
|||
|
|
@ -39,6 +39,7 @@ int cmd__run_command(int argc, const char **argv);
|
|||
int cmd__scrap_cache_tree(int argc, const char **argv);
|
||||
int cmd__sha1(int argc, const char **argv);
|
||||
int cmd__sha1_array(int argc, const char **argv);
|
||||
int cmd__sha256(int argc, const char **argv);
|
||||
int cmd__sigchain(int argc, const char **argv);
|
||||
int cmd__strcmp_offset(int argc, const char **argv);
|
||||
int cmd__string_list(int argc, const char **argv);
|
||||
|
|
|
|||
|
|
@ -26,4 +26,30 @@ test_expect_success 'test basic SHA-1 hash values' '
|
|||
grep 4b825dc642cb6eb9a060e54bf8d69288fbee4904 actual
|
||||
'
|
||||
|
||||
test_expect_success 'test basic SHA-256 hash values' '
|
||||
test-tool sha256 </dev/null >actual &&
|
||||
grep e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 actual &&
|
||||
printf "a" | test-tool sha256 >actual &&
|
||||
grep ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb actual &&
|
||||
printf "abc" | test-tool sha256 >actual &&
|
||||
grep ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad actual &&
|
||||
printf "message digest" | test-tool sha256 >actual &&
|
||||
grep f7846f55cf23e14eebeab5b4e1550cad5b509e3348fbc4efa3a1413d393cb650 actual &&
|
||||
printf "abcdefghijklmnopqrstuvwxyz" | test-tool sha256 >actual &&
|
||||
grep 71c480df93d6ae2f1efad1447c66c9525e316218cf51fc8d9ed832f2daf18b73 actual &&
|
||||
# Try to exercise the chunking code by turning autoflush on.
|
||||
perl -e "$| = 1; print q{aaaaaaaaaa} for 1..100000;" | \
|
||||
test-tool sha256 >actual &&
|
||||
grep cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0 actual &&
|
||||
perl -e "$| = 1; print q{abcdefghijklmnopqrstuvwxyz} for 1..100000;" | \
|
||||
test-tool sha256 >actual &&
|
||||
grep e406ba321ca712ad35a698bf0af8d61fc4dc40eca6bdcea4697962724ccbde35 actual &&
|
||||
printf "blob 0\0" | test-tool sha256 >actual &&
|
||||
grep 473a0f4c3be8a93681a267e3b1e9a7dcda1185436fe141f7749120a303721813 actual &&
|
||||
printf "blob 3\0abc" | test-tool sha256 >actual &&
|
||||
grep c1cf6e465077930e88dc5136641d402f72a229ddd996f627d60e9639eaba35a6 actual &&
|
||||
printf "tree 0\0" | test-tool sha256 >actual &&
|
||||
grep 6ef19b41225c5369f1c104d45d8d85efa9b057b53b14b4b9b939dd74decc5321 actual
|
||||
'
|
||||
|
||||
test_done
|
||||
|
|
|
|||
Loading…
Reference in New Issue