Awesome
SHA
Setup
Enter the Julia package manager by typing ]
into your REPL. Then type:
(@v1.6) pkg> add SHA
Usage
julia> using SHA
julia> bytes2hex(sha256("test"))
"9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"
Each exported function (at the time of this writing, SHA-1, SHA-2 224, 256, 384 and 512, and SHA-3 224, 256, 384 and 512 functions are implemented) takes in either an Vector{UInt8}
, a ByteString
or an IO
object. This makes it trivial to checksum a file:
shell> cat /tmp/test.txt
test
julia> using SHA
julia> open("/tmp/test.txt") do f
sha2_256(f)
end
32-element Vector{UInt8}:
0x9f
0x86
0xd0
0x81
0x88
0x4c
0x7d
0x65
⋮
0x5d
0x6c
0x15
0xb0
0xf0
0x0a
0x08
Note the lack of a newline at the end of /tmp/text.txt
. Julia automatically inserts a newline before the julia>
prompt.
Due to the colloquial usage of sha256
to refer to sha2_256
, convenience functions are provided, mapping shaxxx()
function calls to sha2_xxx()
. For SHA-3, no such colloquialisms exist and the user must use the full sha3_xxx()
names.
shaxxx()
takes AbstractString
and array-like objects (NTuple
and Vector
) with elements of type UInt8
.
Note that, at the time of this writing, the SHA3 code is not optimized, and as such is roughly an order of magnitude slower than SHA2. Pull requests are welcome.