Pbe.Scrypt(Int32, Byte[], Byte[], Int32, Int32, Int32) Method

Derives a key of any length from a password using the SCRYPT algorithm.

Syntax

public static byte[] Scrypt(
   int dkLen,
   byte[] pwdBytes,
   byte[] salt,
   int N,
   int r,
   int p 
)

Public Shared Function Scrypt (
   dkLen As Integer,
   pwdBytes As Byte(),
   salt As Byte(),
   N As Integer,
   r As Integer,
   p As Integer 
) As Byte()

Parameters

dkLen  Int32

Required length of key in bytes

pwdBytes  Byte

Password encoded in byte format

salt  Byte

Salt in byte format

N  Int32

CPU/Memory cost parameter, a number greater than one and a power of 2.

r  Int32

Block size r

p  Int32

Parallelization parameter p

Return Value

Example

// Test vectors from [RFC7914]
// scrypt (P="password", S="NaCl", N=1024, r=8, p=16, dkLen=64)
int dkLen = 64;
byte[] pwd = System.Text.Encoding.Default.GetBytes("password");
byte[] salt = System.Text.Encoding.Default.GetBytes("NaCl");
byte[] key = Pbe.Scrypt(dkLen, pwd, salt, 1024, 8, 16);
Debug.Assert(key.Length > 0, "ERROR with Pbe.Scrypt");
Console.WriteLine("dk={0}", key.ToHex());
// FDBABE1C9D3472007856E7190D01E9FE7C6AD7CBC8237830E77376634B373162
// 2EAF30D92E22A3886FF109279D9830DAC727AFB94A83EE6D8360CBDFA2CC0640

See Also

VB6/C equivalent: PBE_Scrypt

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