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https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-08-25 00:30:37 +02:00
[Huawei] Add PBKDF2 crypto
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@ -19,11 +19,13 @@ package nodomain.freeyourgadget.gadgetbridge.util;
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import android.annotation.SuppressLint;
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import java.nio.ByteBuffer;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.security.spec.AlgorithmParameterSpec;
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import java.security.spec.InvalidKeySpecException;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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@ -31,8 +33,10 @@ import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.Mac;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.SecretKey;
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import javax.crypto.SecretKeyFactory;
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import javax.crypto.spec.GCMParameterSpec;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.PBEKeySpec;
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import javax.crypto.spec.SecretKeySpec;
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public class CryptoUtils {
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@ -127,7 +131,12 @@ public class CryptoUtils {
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generatedBytes.rewind();
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generatedBytes.get(result, 0, outputLength);
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return result;
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}
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public static byte[] pbkdf2Sha256(byte[] key, byte[] iv, int count, int length) throws InvalidKeySpecException, NoSuchAlgorithmException {
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SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
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String keyStr = new String(key, StandardCharsets.UTF_8);
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PBEKeySpec keySpec = new PBEKeySpec(keyStr.toCharArray(), iv, count, length);
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return secretKeyFactory.generateSecret(keySpec).getEncoded();
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}
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}
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