SHA-256 file integrity hash

[MrBcx]

In the future when I upload new versions of BCX, I will be including a SHA-256 file integrity hash.

I have retroactively added the hash to Bcx825.zip:

https://bcxbasiccoders.com/smf/index.php?topic=1309.0



How do you use the SHA-256 value?

I've prepared a batch file below.  simply drag and drop a file onto it and that file's SHA-256 will be displayed.

If that value matches the value on the the download page then that indicates the file has not been altered.

Code Select Expand



certutil -hashfile "%1" SHA256

pause



[dragon57]

Just in case someone would like a GUI for this type of operation, the free 7-Zip GUI provides a rather comprehensive set of hashes.

[Quin]

Neat stuff, thanks MrBcx!

[MrBcx]

I'll be posting a cool little related desktop tool tomorrow.  Watch for the announcement.

[airr]

Hi, MrB.

Quick request:  Could you also place a text file containing the sha256 checksum in the Bcx_Files_New area?

Formatted like:

Code Select Expand


439e0d570720fb1d59ac9133d2839fc30eb2292c233fb2657369095cd10cbd64 Bcx825.zip


The reason for my request is because I have a little utility that checks for the latest version of BCX and downloads it.  I'd like to incorporate something like this into that:

Code Select Expand



Dim sha256$, chksumfile$, expectedSha256$[2],certCmd$

chksumfile$ = trim$(LoadFile$("Bcx825.sha256"))
split(expectedSha256$,chksumfile$," ")

sprint certCmd$, "certutil -hashfile ", expectedSha256$[1], " SHA256 | findstr /R [0-9][a-z] > tmp.txt"

shell certCmd$

sha256$ = trim$(LoadFile$("tmp.txt"))

if sha256$ = expectedSha256[0] then
    print expectedSha256$[1], ": Ok."
else
    print "Checksums don't match!"
    print "Expected Checksum: ", expectedSha256$[0]
    print "Actual Checksum:   ", sha256$
endif

kill "tmp.txt"



AIR.

[MrBcx]

Hi Armando,

No ... but I am willing to give you this format:

Bcx825.zip 439e0d570720fb1d59ac9133d2839fc30eb2292c233fb2657369095cd10cbd64

That keeps the associated zip and sha-256 files adjacent to each other when I'm in my FTP client.

825 is in place, so you can test your process whenever you're ready.

[airr]

See attached zip file and screenshot.

Compiles with Pelles and MSVC.

AIR.

[MrBcx]

Fantastic as usual Armando - it borders on magic it's so good!   

For BED users, AIR's Download & Verifier would be one really useful addition to BED's Tool Menu.

The irony is that I'll never need to use it because I'm the guy supplying the BCX updates. 

[Robert]

See attached zip file and screenshot.

Compiles with Pelles and MSVC.

AIR.

Yes, absolutely useful. Thank you.

[jbk]

thanks airr 👍

[Quin]

See attached zip file and screenshot.

Compiles with Pelles and MSVC.

AIR.

This is super handy, thanks Airr!