Module git_features::hash
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Hash functions and hash utilities
With the fast-sha1
feature, the Sha1
hash type will use a more elaborate implementation utilizing hardware support
in case it is available. Otherwise the rustsha1
feature should be set. fast-sha1
will take precedence.
Otherwise, a minimal yet performant implementation is used instead for a decent trade-off between compile times and run-time performance.
Structs
Sha1
fast-sha1
and (rustsha1
or fast-sha1
)A implementation of the Sha1 hash, which can be used once.
Write
rustsha1
or fast-sha1
A utility to automatically generate a hash while writing into an inner writer.
Functions
bytes
progress
and (rustsha1
or fast-sha1
)Similar to
bytes_of_file
, but operates on an already open file.bytes_of_file
progress
and (rustsha1
or fast-sha1
)Compute the hash of
kind
for the bytes in the file at path
, hashing only the first num_bytes_from_start
while initializing and calling progress
.crc32
crc32
Compute a CRC32 value of the given input
bytes
.crc32_update
crc32
Compute a CRC32 hash from the given
bytes
, returning the CRC32 hash.hasher
rustsha1
or fast-sha1
Produce a hasher suitable for the given kind of hash.
Type Definitions
Sha1Digest
fast-sha1
or rustsha1
A 20 bytes digest produced by a
Sha1
hash implementation.