Pbe.Kdf2(Int32, String, String, Int32, HashAlgorithm) Method

Derive a key in hex format of any length from a password with the salt in hex format.

Syntax

public static string Kdf2(
   int dkLen,
   string pwdStr,
   string saltHex,
   int count,
   HashAlgorithm hashAlg = HashAlgorithm.Sha1 
)

Public Shared Function Kdf2 (
   dkLen As Integer,
   pwdStr As String,
   saltHex As String,
   count As Integer,
   Optional hashAlg As HashAlgorithm = HashAlgorithm.Sha1 
) As String

Parameters

dkLen  Int32

Required length of key in bytes

pwdStr  String

Password

saltHex  String

Salt in hex format

count  Int32

Iteration count

hashAlg  HashAlgorithm  (Optional)

Hash algorithm to use in HMAC PRF (default is SHA-1)

Return Value

Example

string saltHex = "78578e5a5d63cb06";
int n = 24;
string keyStr = Pbe.Kdf2(n, "password", saltHex, 2048, HashAlgorithm.Sha256);
Debug.Assert(keyStr.Length > 0, "ERROR with PbeKdf2/Hex");
Console.WriteLine("Key({0})={1}", n * 8, keyStr);
// Key(192)=97B5A91D35AF542324881315C4F849E327C4707D1BC9D322

See Also

VB6/C equivalent: PBE_Kdf2Hex

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