How to verify binary SHA checksum

Question

I have a file.bin and file.bin.sha. The file.bin.sha has 32 bytes and contains binary data. How can I verify the checksum? sha256sum complains about no properly formatted SHA256 checksum lines found.

Same no properly formatted SHA1 checksum lines found error. — Pitel, Jan 24 '17 at 15:32
If you want to compare the two files in order to check if they are identical, you can use "cmp" too. You can also check https://www.lifewire.com/cmp-linux-command-4095389 — blametheadmin, Jan 24 '17 at 15:49
The manpage seems to mention -b --binary option to read in binary mode. Have you tried with that option? — , Jan 24 '17 at 15:50
the --binary and --text options are meaningless when verifying checksums — Pitel, Jan 24 '17 at 15:54
The "get a bigger hammer" approach: generate the checksum of file.bin with openssl sha256 -binary -out file.bin.sha2 file.bin, then cmp file.bin.sha file.bin.sha2. — Satō Katsura, Jan 24 '17 at 16:22

user4556274 · Accepted Answer · 2017-01-24T18:02:47.900

3

Convert the 256-bit binary value to its hex ascii representation, and append the filename to create a check file that sha256sum will like:

echo $(od -An -tx1 file.bin.sha | tr -d '\n ') file.bin > my256
sha256sum -c my256

od - octal (binary, hex) dump of file
-An - suppress addresses
-tx1 - print as one byte values, hex
tr -d '\n ' - suppress blanks and newlines in the output

edited Jan 24 '17 at 18:02

answered Jan 24 '17 at 17:53

user4556274

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How to verify binary SHA checksum

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