Visual Basic 6.0 Requires Chilkat v11.6.0+
Visual Basic 6.0
Hash a Password with Argon2 (Defaults)
Demonstrates Crypt2.Argon2HashPassword, which hashes a password with Argon2 and returns a PHC-format string. Passing an empty options string uses all defaults, including a random salt.
Background. Argon2 (RFC 9106) is a memory-hard function that is deliberately expensive in CPU time and memory, which is what makes brute-forcing the password space costly. The
argon2id variant is recommended unless there is a specific reason to choose argon2i or argon2d. The returned PHC string records the variant, version, cost parameters, salt, and hash — everything needed to verify the password later. Store the whole string.Chilkat Visual Basic 6.0 Downloads
Dim crypt As New ChilkatCrypt2
' The password should come from a secure source rather than being hard-coded.
Dim password As String
password = "correct horse battery staple"
' Hash the password using all defaults by passing an empty options string. The defaults are
' Argon2id, version 19, 3 iterations, 64 MB of memory, 1 lane, a 32-byte hash, and a 16-byte random
' salt. A random salt is generated automatically, which is what should normally happen.
Dim phcHash As String
phcHash = crypt.Argon2HashPassword(password,"")
If (crypt.LastMethodSuccess = 0) Then
Debug.Print crypt.LastErrorText
Exit Sub
End If
' The returned PHC-format string records the variant, version, cost parameters, salt, and hash --
' everything needed to verify the password later. Store the whole string.
Debug.Print phcHash