C#

PBES2 Password-Based Encryption

See more Encryption Examples

Demonstrates PBES2 encryption C#

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

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

//  Set properties for PBES2 encryption:

//  When the encryption algorithm is set to "pbes2",
//  Chilkat will automatically derive the actual secret key using PBKDF2 and
//  the specified paramters: password, salt, iteration count, hash function, and desired key length.

crypt.CryptAlgorithm = "pbes2";
crypt.PbesPassword = "mySecretPassword";

//  Set the underlying PBE algorithm (and key length):
crypt.PbesAlgorithm = "aes";
crypt.KeyLength = 256;

crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex");

//  Give it some salt:
crypt.SetEncodedSalt("0102030405060708","hex");

//  A higher iteration count makes the algorithm more
//  computationally expensive and therefore exhaustive
//  searches (for breaking the encryption) is more difficult:
crypt.IterationCount = 1024;

//  A hash algorithm needs to be set for PBES2:
crypt.HashAlgorithm = "sha256";

//  Indicate that the encrypted bytes should be returned
//  as a hex string:
crypt.EncodingMode = "hex";

string plainText = "To be encrypted.";

string encryptedText = crypt.EncryptStringENC(plainText);

Debug.WriteLine(encryptedText);

//  Now decrypt:
string decryptedText = crypt.DecryptStringENC(encryptedText);

Debug.WriteLine(decryptedText);