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Secret Warp Decoded
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import javax.crypto.Cipher; | |
import javax.crypto.SecretKeyFactory; | |
import javax.crypto.spec.IvParameterSpec; | |
import javax.crypto.spec.PBEKeySpec; | |
import java.nio.ByteBuffer; | |
import java.nio.charset.StandardCharsets; | |
import java.security.spec.KeySpec; | |
import java.security.KeyFactory; | |
import java.util.Arrays; | |
import javax.crypto.SecretKey; | |
import javax.crypto.spec.SecretKeySpec; | |
public class SecretWarp { | |
private static final byte[] DATA = { | |
72, -71, 33, -116, 61, 25, -105, 61, 69, -34, 22, -96, 83, -41, 4, 100, 49, -120, -76, -32, -24, 105, -103, 57, -101, -101, 114, 39, 45, -48, -58, 106, -83, 72, -120, -98, 14, 111, -73, 38, -43, -29, -17, -64, -48, -21, -63, -14, 7, -65, -115, 61, -62, -121, 108, -2, 24, 84, -62, 117, 115, 52, -88, 18, 30, 115, 44, -113, -123, 88, 77, -122, 15, -13, 123, 85, -118, -12, -30, 7, 104, -75, -84, -57, -124, -113, -38, 84, 52, 6, -94, 67, 76, 59, 105, 82, 92, -65, -52, -26, -46, 45, 94, 47, 10, -14, -86, -12, 1, 111, -107, -119, -115, 32, -60, -92, 107, -2, 73, 109, -128, -107, -52, -7, -6, 126, 98, -71, -92, 12, -41, 83, -124, 14, -51, -15, 4, -3, -65, -36, 99, 63, 119, 64, 46, 21, 10, 30, -23, -10, -90, -36, -4, -106, -102, 84, -17, 58, 59, -76, -103, -28, -95, 4, 112, 18, 3, -78, 125, -79, 11, 120, -59, -64, -37, -47, 19, -21, 90, -9, -65, 109, 70, -83, -4, 34, 41, -109, 27, -20, 29, 60, 109, -117, 74, -112, -58, 76, 96, 9, -65, 86, 63, 62, 112, -88, 96, -35, 64, 57, 35, 89, -24, -40, 121, 106, -102, -103, -24, -73, 103, -110, 56, 97, -82, 55, -53, -100, 22, -68, 104, 8, 98, -120, -65, -30, 38, 114, -59, 30, 66, -119, 59, -93, 107, -50, 115, 40, 80, 77, -61, -102, -62, -110, -80, -85, 19, 123, -120, 70, -119, 11, 63, 30, 92, 73, 81, -19, -14, 122, -103, -108, 38, -116, -100, 50, -121, -7, -125, 61, -44, -38, -117, 16, 14, -101, 79, -96, 89, 12, 84, -36, 42, -21, -109, -7, 117, 64, 38, 18, -97, -58, 73, 2, 41, 70, -85, 75, 6, 123, 76, -66, 53, -41, 25, -14, -104, -19, 67, -28, -9, -111, 59, -109, 35, 57, 108, 100, 40, 116, -106, -128, 2, 109, -75, 3, 19, 87, -120, 59, -20, -15, 74, -40, 106, -3, -122, 19, -94, 53, -103, -60, -36, 2, 52, 31, 63, 17, -32, -61, -116, 5, 9, 117, -72, -28, -125, 99, -54, -126, 96, 21, 29, 38, 35, 90, -32, 89, 48, 108, 10, -52, -117, 2, -74, -122, -21, 119, 126, -110, -115, 57, -119, -53, 43, -128, 10, 97, 122, 126, -111, 103, 113, 90, 101, 44, 9, 5, 102, 88, -24, -108, -8, 42, 65, 46 | |
}; | |
private static final byte[] IVS = { | |
-114, 123, -36, 36, 6, 2, 31, 116, -76, -125, -62, -61, -41, -121, 82, -106 | |
}; | |
private static final String SALT = "pinch_of_salt"; | |
public static void main(String[] args) { | |
// Output: [Hello!, , Only purpose of this message was to troll completionists and put my name somewhere in Minecraft (again!)., I hope it wasn't cracked by accident - it was obviously supposed to take more time than other phrases., , Written during time of plague by boq (yes, lowercase. because symmetry), , "All these worlds are yours, except Europa*. Use them together. Use them in peace.", , * Europa™ the Moon sold separately.] | |
String passphrase = "this_is_a_very_long_phrase_that_hopefully_is_not_in_any_dictionary"; | |
try { | |
final SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256"); | |
final KeySpec spec = new PBEKeySpec(passphrase.toCharArray(), SALT.getBytes(StandardCharsets.UTF_8), 65536, 128); | |
final SecretKey tmp = factory.generateSecret(spec); | |
SecretKeySpec key = new SecretKeySpec(tmp.getEncoded(), "AES"); | |
final Cipher decorder = Cipher.getInstance("AES/CBC/PKCS5Padding"); | |
final IvParameterSpec ivspec = new IvParameterSpec(IVS); | |
decorder.init(Cipher.DECRYPT_MODE, key, ivspec); | |
final byte[] decoded = decorder.doFinal(DATA); | |
System.out.println(Arrays.toString(StandardCharsets.UTF_8.decode(ByteBuffer.wrap(decoded)).toString().split("\n"))); | |
} catch(Exception e) { | |
System.out.println(e); | |
} | |
} | |
} |
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