Zhanty
5 years ago
parent
cb072ca981
commit
b11d78d8a0
@ -0,0 +1,67 @@ |
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package com.android.base.utils.security; |
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import java.io.FileInputStream; |
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import java.io.InputStream; |
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import java.nio.charset.StandardCharsets; |
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import java.security.MessageDigest; |
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import java.security.NoSuchAlgorithmException; |
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public class MD5Utils { |
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private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; |
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private static String toHexString(byte[] bytes) { |
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StringBuilder sb = new StringBuilder(bytes.length * 2); |
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for (byte b : bytes) { |
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sb.append(HEX_DIGITS[(b & 0xf0) >>> 4]); |
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sb.append(HEX_DIGITS[b & 0x0f]); |
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} |
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return sb.toString(); |
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} |
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/** |
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* 文件加密 |
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*/ |
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public static String md5file(String filename) { |
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InputStream fis; |
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byte[] buffer = new byte[1024]; |
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int numRead = 0; |
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MessageDigest md5; |
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try { |
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fis = new FileInputStream(filename); |
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md5 = MessageDigest.getInstance("MD5"); |
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while ((numRead = fis.read(buffer)) > 0) { |
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md5.update(buffer, 0, numRead); |
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} |
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fis.close(); |
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return toHexString(md5.digest()); |
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} catch (Exception e) { |
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System.out.println("error"); |
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return null; |
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} |
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} |
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/** |
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* 字符串加密 |
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*/ |
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public static String md5(String string) { |
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byte[] hash; |
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try { |
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hash = MessageDigest.getInstance("MD5").digest(string.getBytes(StandardCharsets.UTF_8)); |
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} catch (NoSuchAlgorithmException e) { |
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throw new RuntimeException("Huh, MD5 should be supported?", e); |
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} |
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StringBuilder hex = new StringBuilder(hash.length * 2); |
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for (byte b : hash) { |
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if ((b & 0xFF) < 0x10) { |
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hex.append("0"); |
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} |
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hex.append(Integer.toHexString(b & 0xFF)); |
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} |
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return hex.toString(); |
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} |
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} |
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@ -0,0 +1,32 @@ |
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package com.android.base.utils.security; |
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import java.nio.charset.StandardCharsets; |
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import java.security.MessageDigest; |
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import java.security.NoSuchAlgorithmException; |
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/** |
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* @author Ztiany |
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* Email: ztiany3@gmail.com |
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* Date : 2019-08-15 14:50 |
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*/ |
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@SuppressWarnings("WeakerAccess") |
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public class SHAUtils { |
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private static final String SHA256 = "SHA256"; |
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public static byte[] toSHA256(String content) { |
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return toSHA256(content.getBytes(StandardCharsets.UTF_8)); |
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} |
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public static byte[] toSHA256(byte[] bytes) { |
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try { |
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MessageDigest md = MessageDigest.getInstance(SHA256); |
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md.update(bytes); |
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return md.digest(); |
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} catch (NoSuchAlgorithmException e) { |
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e.printStackTrace(); |
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} |
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return null; |
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} |
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} |
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@ -1,113 +0,0 @@ |
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package com.android.base.utils.security.util; |
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import java.security.MessageDigest; |
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import java.security.NoSuchAlgorithmException; |
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public class MD5Util { |
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private final static String[] strDigits = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"}; |
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private static String byteToArrayString(byte bByte) { |
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int iRet = bByte; |
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if (iRet < 0) { |
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iRet += 256; |
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} |
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int iD1 = iRet / 16; |
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int iD2 = iRet % 16; |
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return strDigits[iD1] + strDigits[iD2]; |
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} |
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private static String byteToString(byte[] bByte) { |
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StringBuilder sBuffer = new StringBuilder(); |
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for (byte aBByte : bByte) { |
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sBuffer.append(byteToArrayString(aBByte)); |
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} |
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return sBuffer.toString(); |
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} |
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/** |
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* 32 位 MD5加密 |
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* |
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* @param str 待加密的字符串 |
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* @return result |
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*/ |
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public static String encrypt(String str) { |
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String result = null; |
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try { |
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result = str; |
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MessageDigest md = MessageDigest.getInstance("MD5"); |
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result = byteToString(md.digest(str.getBytes())); |
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} catch (NoSuchAlgorithmException ex) { |
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ex.printStackTrace(); |
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} |
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return result; |
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} |
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public static String encrypt(String algorithm, String str) { |
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try { |
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MessageDigest md = MessageDigest.getInstance(algorithm); |
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md.update(str.getBytes()); |
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StringBuilder sb = new StringBuilder(); |
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byte[] bytes = md.digest(); |
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for (int i = 0; i < bytes.length; i++) { |
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int b = bytes[i] & 0xFF; |
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if (b < 0x10) { |
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sb.append('0'); |
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} |
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sb.append(Integer.toHexString(b)); |
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} |
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return sb.toString(); |
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} catch (Exception e) { |
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return ""; |
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} |
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} |
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public static String hashKeyForDisk(String key) { |
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String cacheKey; |
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try { |
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final MessageDigest mDigest = MessageDigest.getInstance("MD5"); |
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mDigest.update(key.getBytes()); |
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cacheKey = bytesToHexString(mDigest.digest()); |
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} catch (NoSuchAlgorithmException e) { |
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cacheKey = String.valueOf(key.hashCode()); |
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} |
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return cacheKey; |
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} |
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private static String bytesToHexString(byte[] bytes) { |
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StringBuilder sb = new StringBuilder(); |
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for (int i = 0; i < bytes.length; i++) { |
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String hex = Integer.toHexString(0xFF & bytes[i]); |
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if (hex.length() == 1) { |
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sb.append('0'); |
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} |
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sb.append(hex); |
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} |
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return sb.toString(); |
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} |
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public static String getMd5Value(String secret) { |
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try { |
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MessageDigest bmd5 = MessageDigest.getInstance("MD5"); |
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bmd5.update(secret.getBytes()); |
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int i; |
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StringBuffer buf = new StringBuffer(); |
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byte[] b = bmd5.digest(); |
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for (int offset = 0; offset < b.length; offset++) { |
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i = b[offset]; |
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if (i < 0) |
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i += 256; |
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if (i < 16) |
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buf.append("0"); |
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buf.append(Integer.toHexString(i)); |
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} |
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return buf.toString(); |
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} catch (NoSuchAlgorithmException e) { |
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e.printStackTrace(); |
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} |
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return ""; |
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} |
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} |
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