pRCYVJ7t

1/**
2 * 지문 인식 Util - 구버전
3 * @author 나비이쁜이
4 * @since 2019.03.28
5 */
6@RequiresApi(api = Build.VERSION_CODES.M)
7public class FingerFactory {
8
9    /**
10     * Static 변수
11     ************************************************************************************************************************************************/
12    private static final String KEYNAME = "skill_up";                                                               // FingerPrint Key
13    private static final String ANDROIDKEYSTORE = "AndroidKeyStore";                                                // AndroidKeyStore
14    private static final String SLASH = "/";                                                                        // "/"
15
16    /**
17     * 생성자 변수
18     ************************************************************************************************************************************************/
19    private Context mContext;
20    private FingerprintManager fingerprintManager;
21    private FingerprintManager.CryptoObject cryptoObject;
22    private KeyStore keyStore;
23    private KeyGenerator keyGenerator;
24    private Cipher cipher;
25
26    /**
27     * 생성자
28     ************************************************************************************************************************************************/
29    public FingerFactory(Context mContext) {
30        this.mContext = mContext;
31        setKeyStore();
32    }
33
34    /**
35     * FingerFactory callback 초기화
36     ************************************************************************************************************************************************/
37    public void initalize(FingerprintManager.AuthenticationCallback callback) {
38        CancellationSignal cancellationSignal = new CancellationSignal();
39        fingerprintManager.authenticate(cryptoObject, cancellationSignal, 0, callback, null);
40    }
41
42    /**
43     * 하드웨어 지원 가능 여부
44     ************************************************************************************************************************************************/
45    public boolean isFingerHardWare() {
46        return fingerprintManager.isHardwareDetected();
47    }
48
49    /**
50     * 하드웨어 현재 지문 여부
51     ************************************************************************************************************************************************/
52    public boolean isFingerPassCode() {
53        return fingerprintManager.hasEnrolledFingerprints();
54    }
55
56    /**
57     * KeyStore Setting
58     ************************************************************************************************************************************************/
59    private void setKeyStore() {
60        if(mContext != null) {
61            // FingerPrint Manager Setting
62            fingerprintManager = (FingerprintManager) mContext.getSystemService(Context.FINGERPRINT_SERVICE);
63            cryptoObject = new FingerprintManager.CryptoObject(cipher);
64        }
65
66        // keyStore
67        try {
68            keyStore = KeyStore.getInstance(ANDROIDKEYSTORE);
69        } catch (KeyStoreException e) {
70            e.printStackTrace();
71        } catch (Exception e) {
72            e.printStackTrace();
73        }
74
75        // keyGenerator
76        try {
77            keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, ANDROIDKEYSTORE);
78        } catch (NoSuchAlgorithmException e) {
79            e.printStackTrace();
80        } catch (Exception e) {
81            e.printStackTrace();
82        }
83
84        // keyGenerator initalize
85        try {
86            keyStore.load(null);
87
88            keyGenerator.init(new KeyGenParameterSpec.Builder(KEYNAME, KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
89                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
90                    .setUserAuthenticationRequired(true)
91                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
92                    .build());
93
94            keyGenerator.generateKey();
95        } catch (NoSuchAlgorithmException e) {
96            e.printStackTrace();
97        } catch (Exception e) {
98            e.printStackTrace();
99        }
100
101        // cipher initalize
102        try {
103            cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + SLASH + KeyProperties.BLOCK_MODE_CBC + SLASH + KeyProperties.ENCRYPTION_PADDING_PKCS7);
104        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
105            e.printStackTrace();
106        } catch (Exception e) {
107            e.printStackTrace();
108        }
109
110        // cipher set Key
111        try {
112            keyStore.load(null);
113            SecretKey key = (SecretKey) keyStore.getKey(KEYNAME, null);
114            cipher.init(Cipher.ENCRYPT_MODE, key);
115        } catch (KeyPermanentlyInvalidatedException e) {
116            e.printStackTrace();
117        } catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
118            e.printStackTrace();
119        }
120    }
121}