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Generate Secret Key from PasswordThe GenEncodedSecretKey method provides a way to produce a secret key from an arbitrarily sized password string. The secret key produced will be equal in bit length to the KeyLength. A given string passed to GenEncodedSecretKey will always produce the same key. (In other words, this is really a hash function and not a random key generator.)
Dim crypt As New Chilkat.Crypt2() Dim success As Boolean success = crypt.UnlockComponent("Anything for 30-day Trial") If (success <> true) Then MsgBox("Crypt component unlock failed") Exit Sub End If crypt.CryptAlgorithm = "aes" crypt.KeyLength = 128 ' Transform an arbitrary-length password to a secret key ' equal in bit-length to the KeyLength: Dim hexKey As String hexKey = crypt.GenEncodedSecretKey("my_password","hex") ' Set the secret key: crypt.SetEncodedKey(hexKey,"hex") ' The hexKey is 16 bytes in length: MsgBox(hexKey) |
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