Lua Requires Chilkat v9.5.0.78+

Compute Glacier SHA256 Tree Hash of a File

See more Amazon Glacier Examples

Computes the Amazon Glacier SHA256 tree hash for a file. Lua

local chilkat = require("chilkat")

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

local crypt = chilkat.Crypt2.new()

-- For more information about Amazon Glacier tree hashes, see Computing Glacier Checksums
-- Chilkat provides the "sha256-tree-hash" algorithm to make it easy to compute the Glacier tree hash checksum
-- of a file or from bytes in memory.
crypt.hash_algorithm = "sha256-tree-hash"

-- Return the hash in lowercase hexidecimal format.
crypt.encoding_mode = "hexlower"

local treeHashHex = crypt:hash_file_enc("qa_data/jpg/penguins.jpg")
print("SHA256 tree hash = " .. treeHashHex)