B4X

HMAC with SHA256

See more Encryption Examples

Demonstrates how to compute a HMAC SHA256 keyed-hash message authentication code. B4X

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

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

'  The output will be Hex, so set the EncodingMode:
crypt.EncodingMode = "hex"

'  Set the hash algorithm:
'  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.HashAlgorithm = "sha256"
crypt.MacAlgorithm = "hmac"

Dim mac As String

'  Set the HMAC key:
crypt.SetMacKeyEncoded("The_API_Secret", "ascii")
mac = crypt.MacStringENC("The quick brown fox jumps over the lazy dog")
Log(mac)