B4X

Compute Glacier SHA256 Linear Hash of a File

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Computes the Amazon Glacier SHA256 linear hash for a file. B4X

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim crypt As ChilkatCrypt2
crypt.Initialize("crypt")

'  The "linear hash" is simply the SHA256 hash of the file bytes.
crypt.HashAlgorithm = "sha256"

'  Return the hash in lowercase hexidecimal format.
crypt.EncodingMode = "hexlower"

Dim linearHashHex As String = crypt.HashFileENC("qa_data/jpg/penguins.jpg")
Log("SHA256 linear hash = " & linearHashHex)