B4X

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

See more Encryption Examples

How to create hashes (message digests) for strings. 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")

Dim s As String = "The quick brown fox jumps over the lazy dog"

crypt.HashAlgorithm = "sha1"
crypt.EncodingMode = "hex"

'  Other possible EncodingMode settings are: 
'  "quoted-printable", "base64","url", and many more..

Dim hash As String = crypt.HashStringENC(s)
Log("SHA1: " & hash)

'  Hash using MD2
crypt.HashAlgorithm = "md2"
hash = crypt.HashStringENC(s)
Log("MD2: " & hash)

'  Hash using MD5
crypt.HashAlgorithm = "md5"
hash = crypt.HashStringENC(s)
Log("MD5: " & hash)

'  Note: SHA-2 is a set of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512)

'  Hash using SHA-256
crypt.HashAlgorithm = "sha256"
hash = crypt.HashStringENC(s)
Log("SHA256: " & hash)

'  Hash using SHA-384
crypt.HashAlgorithm = "sha384"
hash = crypt.HashStringENC(s)
Log("SHA384: " & hash)

'  Hash using SHA-512
crypt.HashAlgorithm = "sha512"
hash = crypt.HashStringENC(s)
Log("SHA512: " & 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.HashAlgorithm = "haval"
crypt.HavalRounds = 5
crypt.KeyLength = 256
hash = crypt.HashStringENC(s)
Log("Haval: " & hash)

'  Hashes for "The quick brown fox jumps over the lazy dog"

'  SHA1:
'  2FD4E1C67A2D28FCED849EE1BB76E7391B93EB12

'  MD2:
'  03D85A0D629D2C442E987525319FC471

'  MD5:
'  9E107D9D372BB6826BD81D3542A419D6

'  SHA256:
'  D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592

'  SHA384:
'  CA737F1014A48F4C0B6DD43CB177B0AFD9E5169367544C494011E3317DBF9A509CB1E5DC1E85A941BBEE3D7F2AFBC9B1

'  SHA512:
'  07E547D9586F6A73F73FBAC0435ED76951218FB7D0C8D788A309D785436BBB642E93A252A954F23912547D1E8A3B5ED6E1BFD7097821233FA0538F3DB854FEE6

'  Haval:
'  B89C551CDFE2E06DBD4CEA2BE1BC7D557416C58EBB4D07CBC94E49F710C55BE4