(Perl) PBES2 Password-Based Encryption

See more Encryption Examples

For more information, see https://www.chilkatsoft.com/explaining_pbes2_encryption.asp

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use chilkat();

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

$crypt = chilkat::CkCrypt2->new();

# 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->put_CryptAlgorithm("pbes2");
$crypt->put_PbesPassword("mySecretPassword");

# Set the underlying PBE algorithm (and key length):
$crypt->put_PbesAlgorithm("aes");
$crypt->put_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->put_IterationCount(1024);

# A hash algorithm needs to be set for PBES2:
$crypt->put_HashAlgorithm("sha256");

# Indicate that the encrypted bytes should be returned
# as a hex string:
$crypt->put_EncodingMode("hex");

$plainText = "To be encrypted.";

$encryptedText = $crypt->encryptStringENC($plainText);

print $encryptedText . "\r\n";

# Now decrypt:
$decryptedText = $crypt->decryptStringENC($encryptedText);

print $decryptedText . "\r\n";