Visual FoxPro

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. Visual FoxPro

LOCAL loCrypt
LOCAL lcFilename
LOCAL lcHash

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

loCrypt = CreateObject('Chilkat.Crypt2')

* Any type of file may be hashed.
* There is  no size limitation because the file is consumed
* in streaming mode internally.

lcFilename = "something.zip"

loCrypt.HashAlgorithm = "sha1"
loCrypt.EncodingMode = "hex"

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

lcHash = loCrypt.HashFileENC(lcFilename)
? "SHA1:"
? lcHash

* Hash using MD2
loCrypt.HashAlgorithm = "md2"
lcHash = loCrypt.HashFileENC(lcFilename)
? "MD2:"
? lcHash

* Hash using MD5
loCrypt.HashAlgorithm = "md5"
lcHash = loCrypt.HashFileENC(lcFilename)
? "MD5:"
? lcHash

* Hash using SHA-256
loCrypt.HashAlgorithm = "sha256"
lcHash = loCrypt.HashFileENC(lcFilename)
? "SHA256:"
? lcHash

* Hash using SHA-384
loCrypt.HashAlgorithm = "sha384"
lcHash = loCrypt.HashFileENC(lcFilename)
? "SHA384:"
? lcHash

* Hash using SHA-512
loCrypt.HashAlgorithm = "sha512"
lcHash = loCrypt.HashFileENC(lcFilename)
? "SHA512:"
? lcHash

* 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
loCrypt.HashAlgorithm = "haval"
loCrypt.HavalRounds = 5
loCrypt.KeyLength = 256
lcHash = loCrypt.HashFileENC(lcFilename)
? "Haval:"
? lcHash

RELEASE loCrypt