Lua

Hash File: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512

See more Encryption Examples

Computing the hash for a file of any size. Lua

local chilkat = require("chilkat")

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

local crypt = chilkat.Crypt2.new()

-- Any type of file may be hashed.
-- There is  no size limitation because the file is consumed
-- in streaming mode internally.
local filename = "something.zip"

crypt.hash_algorithm = "sha1"
crypt.encoding_mode = "hex"

-- Other possible EncodingMode settings are:
-- "quoted-printable", "base64", "base32", and "url";

local hash = crypt:hash_file_enc(filename)
print("SHA1:")
print(hash)

-- Hash using MD2
crypt.hash_algorithm = "md2"
hash = crypt:hash_file_enc(filename)
print("MD2:")
print(hash)

-- Hash using MD5
crypt.hash_algorithm = "md5"
hash = crypt:hash_file_enc(filename)
print("MD5:")
print(hash)

-- Hash using SHA-256
crypt.hash_algorithm = "sha256"
hash = crypt:hash_file_enc(filename)
print("SHA256:")
print(hash)

-- Hash using SHA-384
crypt.hash_algorithm = "sha384"
hash = crypt:hash_file_enc(filename)
print("SHA384:")
print(hash)

-- Hash using SHA-512
crypt.hash_algorithm = "sha512"
hash = crypt:hash_file_enc(filename)
print("SHA512:")
print(hash)

-- Hash using HAVAL
-- There are two additional properties relevant to HAVAL:
-- HavalRounds, and KeyLength.
-- HavalRounds can have values of 3, 4, or 5.
-- KeyLength can have values of 128, 160, 192, 224, or 256
crypt.hash_algorithm = "haval"
crypt.haval_rounds = 5
crypt.key_length = 256
hash = crypt:hash_file_enc(filename)
print("Haval:")
print(hash)