diff --git a/lib_base/src/main/java/com/android/base/utils/security/AESCipherStrategy.java b/lib_base/src/main/java/com/android/base/utils/security/AESCipherStrategy.java
index 9cfa9c7..f9ce0a5 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/AESCipherStrategy.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/AESCipherStrategy.java
@@ -1,7 +1,5 @@
package com.android.base.utils.security;
-import com.android.base.utils.security.util.AESUtils;
-
import java.io.UnsupportedEncodingException;
/**
@@ -28,15 +26,15 @@ public class AESCipherStrategy extends CipherStrategy {
@Override
public String decrypt(String encryptContent) {
- byte[] encrypByte = decodeConvert(encryptContent);
- byte[] decryptByte = AESUtils.decryptData(encrypByte, key);
+ byte[] encryptByte = decodeConvert(encryptContent);
+ byte[] decryptByte = AESUtils.decryptData(encryptByte, key);
String result = "";
try {
result = new String(decryptByte, CHARSET);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
-
return result;
}
-}
+
+}
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/utils/security/util/AESUtils.java b/lib_base/src/main/java/com/android/base/utils/security/AESUtils.java
similarity index 79%
rename from lib_base/src/main/java/com/android/base/utils/security/util/AESUtils.java
rename to lib_base/src/main/java/com/android/base/utils/security/AESUtils.java
index c75275d..32fe918 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/util/AESUtils.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/AESUtils.java
@@ -14,9 +14,9 @@
* limitations under the License.
*/
-package com.android.base.utils.security.util;
+package com.android.base.utils.security;
-import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
@@ -25,10 +25,11 @@ import javax.crypto.spec.SecretKeySpec;
* AES 对称加密
*/
public class AESUtils {
+
/**
* 算法/模式/填充 *
*/
- private static final String CipherMode = "AES";
+ private static final String CIPHER_MODE = "AES";
/**
* 创建密钥
@@ -38,7 +39,7 @@ public class AESUtils {
* @return SecretKeySpec 实例
*/
private static SecretKeySpec generateAESKey(String password) {
- byte[] data = null;
+ byte[] data;
StringBuilder sb = new StringBuilder();
sb.append(password);
while (sb.length() < 16)
@@ -46,8 +47,8 @@ public class AESUtils {
if (sb.length() > 16)
sb.setLength(16);
try {
- data = sb.toString().getBytes("UTF-8");
- return new SecretKeySpec(data, "AES");
+ data = sb.toString().getBytes(StandardCharsets.UTF_8);
+ return new SecretKeySpec(data, CIPHER_MODE);
} catch (Exception e) {
e.printStackTrace();
return null;
@@ -64,10 +65,9 @@ public class AESUtils {
public static byte[] encryptData(byte[] content, String password) {
try {
SecretKeySpec key = generateAESKey(password);
- Cipher cipher = Cipher.getInstance(CipherMode);
+ Cipher cipher = Cipher.getInstance(CIPHER_MODE);
cipher.init(Cipher.ENCRYPT_MODE, key);
- byte[] result = cipher.doFinal(content);
- return result;
+ return cipher.doFinal(content);
} catch (Exception e) {
e.printStackTrace();
}
@@ -84,13 +84,12 @@ public class AESUtils {
public static String encryptData(String content, String password) {
byte[] data = null;
try {
- data = content.getBytes("UTF-8");
+ data = content.getBytes(StandardCharsets.UTF_8);
} catch (Exception e) {
e.printStackTrace();
}
data = encryptData(data, password);
- String result = byte2hex(data);
- return result;
+ return byte2hex(data);
}
/**
@@ -103,7 +102,7 @@ public class AESUtils {
public static byte[] decryptData(byte[] content, String password) {
try {
SecretKeySpec key = generateAESKey(password);
- Cipher cipher = Cipher.getInstance(CipherMode);
+ Cipher cipher = Cipher.getInstance(CIPHER_MODE);
cipher.init(Cipher.DECRYPT_MODE, key);
return cipher.doFinal(content);
} catch (Exception e) {
@@ -126,26 +125,21 @@ public class AESUtils {
if (data == null)
return null;
String result = null;
- try {
- result = new String(data, "UTF-8");
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- }
+ result = new String(data, StandardCharsets.UTF_8);
return result;
}
/**
* 字节数组转成16进制字符串
*
- * @param b
* @return 16进制字符串
*/
- public static String byte2hex(byte[] b) { // 一个字节的数，
- StringBuffer sb = new StringBuffer(b.length * 2);
- String tmp = "";
- for (int n = 0; n < b.length; n++) {
+ public static String byte2hex(byte[] bytes) { // 一个字节的数，
+ StringBuilder sb = new StringBuilder(bytes.length * 2);
+ String tmp;
+ for (byte theByte : bytes) {
// 整数转成十六进制表示
- tmp = (Integer.toHexString(b[n] & 0XFF));
+ tmp = (Integer.toHexString(theByte & 0XFF));
if (tmp.length() == 1) {
sb.append("0");
}
@@ -155,7 +149,7 @@ public class AESUtils {
}
/**
- * 将hex字符串转换成字节数组 *
+ * 将hex字符串转换成字节数组
*
* @param inputString 16进制的字符串
* @return 字节数组
diff --git a/lib_base/src/main/java/com/android/base/utils/security/DESCipherStrategy.java b/lib_base/src/main/java/com/android/base/utils/security/DESCipherStrategy.java
index 10e48a3..116ce4f 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/DESCipherStrategy.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/DESCipherStrategy.java
@@ -1,8 +1,6 @@
package com.android.base.utils.security;
-import com.android.base.utils.security.util.DESUtils;
-
import java.io.UnsupportedEncodingException;
/**
@@ -32,8 +30,8 @@ public class DESCipherStrategy extends CipherStrategy {
@Override
public String decrypt(String encryptContent) {
- byte[] encrypByte = decodeConvert(encryptContent);
- byte[] decryptByte = DESUtils.decrypt(encrypByte, key);
+ byte[] encryptByte = decodeConvert(encryptContent);
+ byte[] decryptByte = DESUtils.decrypt(encryptByte, key);
String result = "";
try {
result = new String(decryptByte, CHARSET);
diff --git a/lib_base/src/main/java/com/android/base/utils/security/util/DESUtils.java b/lib_base/src/main/java/com/android/base/utils/security/DESUtils.java
similarity index 86%
rename from lib_base/src/main/java/com/android/base/utils/security/util/DESUtils.java
rename to lib_base/src/main/java/com/android/base/utils/security/DESUtils.java
index dd06852..53334dd 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/util/DESUtils.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/DESUtils.java
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-package com.android.base.utils.security.util;
+package com.android.base.utils.security;
import java.security.SecureRandom;
@@ -23,9 +23,7 @@ import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
-/**
- * Created by Administrator on 2015/11/11.
- */
+@SuppressWarnings("WeakerAccess")
public class DESUtils {
/**
@@ -33,7 +31,6 @@ public class DESUtils {
*
* @param bytesContent 待加密内容
* @param key 加密的密钥
- * @return
*/
public static byte[] encrypt(byte[] bytesContent, String key) {
try {
@@ -43,8 +40,7 @@ public class DESUtils {
SecretKey securekey = keyFactory.generateSecret(desKey);
Cipher cipher = Cipher.getInstance("DES");
cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
- byte[] result = cipher.doFinal(bytesContent);
- return result;
+ return cipher.doFinal(bytesContent);
} catch (Throwable e) {
e.printStackTrace();
}
@@ -56,20 +52,20 @@ public class DESUtils {
*
* @param content 待解密内容
* @param key 解密的密钥
- * @return
*/
public static byte[] decrypt(byte[] content, String key) {
try {
SecureRandom random = new SecureRandom();
DESKeySpec desKey = new DESKeySpec(key.getBytes());
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
- SecretKey securekey = keyFactory.generateSecret(desKey);
+ SecretKey secretKey = keyFactory.generateSecret(desKey);
Cipher cipher = Cipher.getInstance("DES");
- cipher.init(Cipher.DECRYPT_MODE, securekey, random);
+ cipher.init(Cipher.DECRYPT_MODE, secretKey, random);
return cipher.doFinal(content);
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}
-}
+
+}
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/utils/security/MD5Utils.java b/lib_base/src/main/java/com/android/base/utils/security/MD5Utils.java
new file mode 100644
index 0000000..074f138
--- /dev/null
+++ b/lib_base/src/main/java/com/android/base/utils/security/MD5Utils.java
@@ -0,0 +1,67 @@
+package com.android.base.utils.security;
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class MD5Utils {
+
+ private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
+
+ private static String toHexString(byte[] bytes) {
+ StringBuilder sb = new StringBuilder(bytes.length * 2);
+ for (byte b : bytes) {
+ sb.append(HEX_DIGITS[(b & 0xf0) >>> 4]);
+ sb.append(HEX_DIGITS[b & 0x0f]);
+ }
+ return sb.toString();
+ }
+
+ /**
+ * 文件加密
+ */
+ public static String md5file(String filename) {
+ InputStream fis;
+ byte[] buffer = new byte[1024];
+ int numRead = 0;
+ MessageDigest md5;
+ try {
+ fis = new FileInputStream(filename);
+ md5 = MessageDigest.getInstance("MD5");
+ while ((numRead = fis.read(buffer)) > 0) {
+ md5.update(buffer, 0, numRead);
+ }
+ fis.close();
+ return toHexString(md5.digest());
+ } catch (Exception e) {
+ System.out.println("error");
+ return null;
+ }
+ }
+
+ /**
+ * 字符串加密
+ */
+ public static String md5(String string) {
+ byte[] hash;
+ try {
+ hash = MessageDigest.getInstance("MD5").digest(string.getBytes(StandardCharsets.UTF_8));
+ } catch (NoSuchAlgorithmException e) {
+ throw new RuntimeException("Huh, MD5 should be supported?", e);
+ }
+
+ StringBuilder hex = new StringBuilder(hash.length * 2);
+
+ for (byte b : hash) {
+ if ((b & 0xFF) < 0x10) {
+ hex.append("0");
+ }
+ hex.append(Integer.toHexString(b & 0xFF));
+ }
+
+ return hex.toString();
+ }
+
+}
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/utils/security/RSACipherStrategy.java b/lib_base/src/main/java/com/android/base/utils/security/RSACipherStrategy.java
index 99490b6..50b6ca2 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/RSACipherStrategy.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/RSACipherStrategy.java
@@ -1,7 +1,5 @@
package com.android.base.utils.security;
-import com.android.base.utils.security.util.RSAUtils;
-
import java.io.InputStream;
import java.security.PrivateKey;
import java.security.PublicKey;
@@ -67,4 +65,4 @@ public class RSACipherStrategy extends CipherStrategy {
return new String(decryptByte);
}
-}
+}
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/utils/security/util/RSAUtils.java b/lib_base/src/main/java/com/android/base/utils/security/RSAUtils.java
similarity index 85%
rename from lib_base/src/main/java/com/android/base/utils/security/util/RSAUtils.java
rename to lib_base/src/main/java/com/android/base/utils/security/RSAUtils.java
index 8b72374..f3b081b 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/util/RSAUtils.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/RSAUtils.java
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-package com.android.base.utils.security.util;
+package com.android.base.utils.security;
import android.util.Base64;
@@ -39,16 +39,14 @@ import javax.crypto.Cipher;
/**
* @author Mr.Zheng
- * @date 2014年8月22日 下午1:44:23
*/
public final class RSAUtils {
+
private final static String KEY_PAIR = "RSA";
private final static String CIPHER = "RSA/ECB/PKCS1Padding";
/**
* 随机生成RSA密钥对(默认密钥长度为1024)
- *
- * @return
*/
public static KeyPair generateRSAKeyPair() {
return generateRSAKeyPair(1024);
@@ -57,9 +55,7 @@ public final class RSAUtils {
/**
* 随机生成RSA密钥对
*
- * @param keyLength 密钥长度，范围：512～2048
- * 一般1024
- * @return
+ * @param keyLength 密钥长度，范围：512～2048，一般1024
*/
public static KeyPair generateRSAKeyPair(int keyLength) {
try {
@@ -98,7 +94,6 @@ public final class RSAUtils {
*
* @param encryptedData 经过encryptedData()加密返回的byte数据
* @param privateKey 私钥
- * @return
*/
public static byte[] decryptData(byte[] encryptedData, PrivateKey privateKey) {
try {
@@ -113,8 +108,6 @@ public final class RSAUtils {
/**
* 通过公钥byte[](publicKey.getEncoded())将公钥还原，适用于RSA算法
*
- * @param keyBytes
- * @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeySpecException
*/
@@ -122,15 +115,12 @@ public final class RSAUtils {
InvalidKeySpecException {
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_PAIR);
- PublicKey publicKey = keyFactory.generatePublic(keySpec);
- return publicKey;
+ return keyFactory.generatePublic(keySpec);
}
/**
* 通过私钥byte[]将公钥还原，适用于RSA算法
*
- * @param keyBytes
- * @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeySpecException
*/
@@ -138,16 +128,12 @@ public final class RSAUtils {
InvalidKeySpecException {
PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_PAIR);
- PrivateKey privateKey = keyFactory.generatePrivate(keySpec);
- return privateKey;
+ return keyFactory.generatePrivate(keySpec);
}
/**
* 使用N、e值还原公钥
*
- * @param modulus
- * @param publicExponent
- * @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeySpecException
*/
@@ -157,27 +143,21 @@ public final class RSAUtils {
BigInteger bigIntPrivateExponent = new BigInteger(publicExponent);
RSAPublicKeySpec keySpec = new RSAPublicKeySpec(bigIntModulus, bigIntPrivateExponent);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_PAIR);
- PublicKey publicKey = keyFactory.generatePublic(keySpec);
- return publicKey;
+ return keyFactory.generatePublic(keySpec);
}
/**
* 使用N、d值还原私钥
*
- * @param modulus
- * @param privateExponent
- * @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeySpecException
*/
- public static PrivateKey getPrivateKey(String modulus, String privateExponent)
- throws NoSuchAlgorithmException, InvalidKeySpecException {
+ public static PrivateKey getPrivateKey(String modulus, String privateExponent) throws NoSuchAlgorithmException, InvalidKeySpecException {
BigInteger bigIntModulus = new BigInteger(modulus);
BigInteger bigIntPrivateExponent = new BigInteger(privateExponent);
RSAPublicKeySpec keySpec = new RSAPublicKeySpec(bigIntModulus, bigIntPrivateExponent);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_PAIR);
- PrivateKey privateKey = keyFactory.generatePrivate(keySpec);
- return privateKey;
+ return keyFactory.generatePrivate(keySpec);
}
/**
@@ -203,12 +183,7 @@ public final class RSAUtils {
}
/**
- * 从字符串中加载私钥
- * 加载时使用的是PKCS8EncodedKeySpec（PKCS#8编码的Key指令）。
- *
- * @param privateKeyStr
- * @return
- * @throws Exception
+ * 从字符串中加载私钥，加载时使用的是PKCS8EncodedKeySpec（PKCS#8编码的Key指令）。
*/
public static PrivateKey loadPrivateKey(String privateKeyStr) throws Exception {
try {
@@ -244,10 +219,6 @@ public final class RSAUtils {
/**
* 从文件中加载私钥
- *
- * @param
- * @return 是否成功
- * @throws Exception
*/
public static PrivateKey loadPrivateKey(InputStream in) throws Exception {
try {
@@ -261,28 +232,25 @@ public final class RSAUtils {
/**
* 读取密钥信息
+ *
+ *
* --------------------
* CONTENT
* --------------------
- *
- * @param in
- * @return
- * @throws IOException
+ *
*/
private static String readKey(InputStream in) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(in));
- String readLine = null;
+ String readLine;
StringBuilder sb = new StringBuilder();
while ((readLine = br.readLine()) != null) {
if (readLine.charAt(0) == '-') {
continue;
- } else {
- sb.append(readLine);
- sb.append('\r');
}
+ sb.append(readLine);
+ sb.append('\r');
}
-
return sb.toString();
}
-}
+}
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/utils/security/SHAUtils.java b/lib_base/src/main/java/com/android/base/utils/security/SHAUtils.java
new file mode 100644
index 0000000..b8622ec
--- /dev/null
+++ b/lib_base/src/main/java/com/android/base/utils/security/SHAUtils.java
@@ -0,0 +1,32 @@
+package com.android.base.utils.security;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * @author Ztiany
+ * Email: ztiany3@gmail.com
+ * Date : 2019-08-15 14:50
+ */
+@SuppressWarnings("WeakerAccess")
+public class SHAUtils {
+
+ private static final String SHA256 = "SHA256";
+
+ public static byte[] toSHA256(String content) {
+ return toSHA256(content.getBytes(StandardCharsets.UTF_8));
+ }
+
+ public static byte[] toSHA256(byte[] bytes) {
+ try {
+ MessageDigest md = MessageDigest.getInstance(SHA256);
+ md.update(bytes);
+ return md.digest();
+ } catch (NoSuchAlgorithmException e) {
+ e.printStackTrace();
+ }
+ return null;
+ }
+
+}
diff --git a/lib_base/src/main/java/com/android/base/utils/security/SimpleRsa.java b/lib_base/src/main/java/com/android/base/utils/security/SimpleRsa.java
index c8c43c1..3a95a0d 100644
--- a/lib_base/src/main/java/com/android/base/utils/security/SimpleRsa.java
+++ b/lib_base/src/main/java/com/android/base/utils/security/SimpleRsa.java
@@ -5,6 +5,7 @@ import android.util.Base64;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
@@ -45,7 +46,7 @@ public class SimpleRsa {
PublicKey pubKey = getPublicKeyFromX509(ALGORITHM, RSA_PUBLIC_KEY);
Cipher cipher = Cipher.getInstance(TRANSFORMATION);
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
- byte plaintext[] = content.getBytes("UTF-8");
+ byte[] plaintext = content.getBytes(StandardCharsets.UTF_8);
byte[] output = cipher.doFinal(plaintext);
return new String(Base64.encode(output, Base64.DEFAULT));
} catch (Exception e) {
@@ -78,7 +79,7 @@ public class SimpleRsa {
}
writer.write(cipher.doFinal(block));
}
- return new String(writer.toByteArray(), "utf-8");
+ return new String(writer.toByteArray(), StandardCharsets.UTF_8);
} catch (Exception e) {
return null;
}
diff --git a/lib_base/src/main/java/com/android/base/utils/security/util/MD5Util.java b/lib_base/src/main/java/com/android/base/utils/security/util/MD5Util.java
deleted file mode 100644
index fad4e41..0000000
--- a/lib_base/src/main/java/com/android/base/utils/security/util/MD5Util.java
+++ /dev/null
@@ -1,113 +0,0 @@
-package com.android.base.utils.security.util;
-
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-
-public class MD5Util {
-
- private final static String[] strDigits = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"};
-
- private static String byteToArrayString(byte bByte) {
- int iRet = bByte;
- if (iRet < 0) {
- iRet += 256;
- }
- int iD1 = iRet / 16;
- int iD2 = iRet % 16;
- return strDigits[iD1] + strDigits[iD2];
- }
-
- private static String byteToString(byte[] bByte) {
- StringBuilder sBuffer = new StringBuilder();
- for (byte aBByte : bByte) {
- sBuffer.append(byteToArrayString(aBByte));
- }
- return sBuffer.toString();
- }
-
- /**
- * 32 位 MD5加密
- *
- * @param str 待加密的字符串
- * @return result
- */
- public static String encrypt(String str) {
- String result = null;
- try {
- result = str;
- MessageDigest md = MessageDigest.getInstance("MD5");
- result = byteToString(md.digest(str.getBytes()));
- } catch (NoSuchAlgorithmException ex) {
- ex.printStackTrace();
- }
- return result;
- }
-
-
- public static String encrypt(String algorithm, String str) {
- try {
- MessageDigest md = MessageDigest.getInstance(algorithm);
- md.update(str.getBytes());
- StringBuilder sb = new StringBuilder();
- byte[] bytes = md.digest();
- for (int i = 0; i < bytes.length; i++) {
- int b = bytes[i] & 0xFF;
- if (b < 0x10) {
- sb.append('0');
- }
- sb.append(Integer.toHexString(b));
- }
- return sb.toString();
- } catch (Exception e) {
- return "";
- }
- }
-
- public static String hashKeyForDisk(String key) {
- String cacheKey;
- try {
- final MessageDigest mDigest = MessageDigest.getInstance("MD5");
- mDigest.update(key.getBytes());
- cacheKey = bytesToHexString(mDigest.digest());
- } catch (NoSuchAlgorithmException e) {
- cacheKey = String.valueOf(key.hashCode());
- }
- return cacheKey;
- }
-
- private static String bytesToHexString(byte[] bytes) {
- StringBuilder sb = new StringBuilder();
- for (int i = 0; i < bytes.length; i++) {
- String hex = Integer.toHexString(0xFF & bytes[i]);
- if (hex.length() == 1) {
- sb.append('0');
- }
- sb.append(hex);
- }
- return sb.toString();
- }
-
-
- public static String getMd5Value(String secret) {
- try {
- MessageDigest bmd5 = MessageDigest.getInstance("MD5");
- bmd5.update(secret.getBytes());
- int i;
- StringBuffer buf = new StringBuffer();
- byte[] b = bmd5.digest();
- for (int offset = 0; offset < b.length; offset++) {
- i = b[offset];
- if (i < 0)
- i += 256;
- if (i < 16)
- buf.append("0");
- buf.append(Integer.toHexString(i));
- }
- return buf.toString();
- } catch (NoSuchAlgorithmException e) {
- e.printStackTrace();
- }
- return "";
- }
-
-}