Java BASE58 以及 md5，sha256，sha1

1package cn.ubibi.wsblog.utils;
2 
3import java.io.UnsupportedEncodingException;
4import java.math.BigInteger;
5 
6
7
8
9public class Base58 {
10 
11    private static final char[] ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz".toCharArray();
12    private static final int[] INDEXES = new int[128];
13 
14    static {
15        for (int i = 0; i < INDEXES.length; i++) {
16            INDEXES[i] = -1;
17        }
18        for (int i = 0; i < ALPHABET.length; i++) {
19            INDEXES[ALPHABET[i]] = i;
20        }
21    }
22 
23    /**
24     * Encodes the given bytes in base58. No checksum is appended.
25     */
26    public static String encode(byte[] input) {
27        if (input.length == 0) {
28            return "";
29        }
30        input = copyOfRange(input, 0, input.length);
31        // Count leading zeroes.
32        int zeroCount = 0;
33        while (zeroCount < input.length && input[zeroCount] == 0) {
34            ++zeroCount;
35        }
36        // The actual encoding.
37        byte[] temp = new byte[input.length * 2];
38        int j = temp.length;
39 
40        int startAt = zeroCount;
41        while (startAt < input.length) {
42            byte mod = divmod58(input, startAt);
43            if (input[startAt] == 0) {
44                ++startAt;
45            }
46            temp[--j] = (byte) ALPHABET[mod];
47        }
48 
49        // Strip extra '1' if there are some after decoding.
50        while (j < temp.length && temp[j] == ALPHABET[0]) {
51            ++j;
52        }
53        // Add as many leading '1' as there were leading zeros.
54        while (--zeroCount >= 0) {
55            temp[--j] = (byte) ALPHABET[0];
56        }
57 
58        byte[] output = copyOfRange(temp, j, temp.length);
59        try {
60            return new String(output, "US-ASCII");
61        } catch (UnsupportedEncodingException e) {
62            throw new RuntimeException(e);  // Cannot happen.
63        }
64    }
65 
66    public static byte[] decode(String input) throws IllegalArgumentException {
67        if (input.length() == 0) {
68            return new byte[0];
69        }
70        byte[] input58 = new byte[input.length()];
71        // Transform the String to a base58 byte sequence
72        for (int i = 0; i < input.length(); ++i) {
73            char c = input.charAt(i);
74 
75            int digit58 = -1;
76            if (c >= 0 && c < 128) {
77                digit58 = INDEXES[c];
78            }
79            if (digit58 < 0) {
80                throw new IllegalArgumentException("Illegal character " + c + " at " + i);
81            }
82 
83            input58[i] = (byte) digit58;
84        }
85        // Count leading zeroes
86        int zeroCount = 0;
87        while (zeroCount < input58.length && input58[zeroCount] == 0) {
88            ++zeroCount;
89        }
90        // The encoding
91        byte[] temp = new byte[input.length()];
92        int j = temp.length;
93 
94        int startAt = zeroCount;
95        while (startAt < input58.length) {
96            byte mod = divmod256(input58, startAt);
97            if (input58[startAt] == 0) {
98                ++startAt;
99            }
100 
101            temp[--j] = mod;
102        }
103        // Do no add extra leading zeroes, move j to first non null byte.
104        while (j < temp.length && temp[j] == 0) {
105            ++j;
106        }
107 
108        return copyOfRange(temp, j - zeroCount, temp.length);
109    }
110 
111    public static BigInteger decodeToBigInteger(String input) throws IllegalArgumentException {
112        return new BigInteger(1, decode(input));
113    }
114 
115    //
116    // number -> number / 58, returns number % 58
117    //
118    private static byte divmod58(byte[] number, int startAt) {
119        int remainder = 0;
120        for (int i = startAt; i < number.length; i++) {
121            int digit256 = (int) number[i] & 0xFF;
122            int temp = remainder * 256 + digit256;
123 
124            number[i] = (byte) (temp / 58);
125 
126            remainder = temp % 58;
127        }
128 
129        return (byte) remainder;
130    }
131 
132    //
133    // number -> number / 256, returns number % 256
134    //
135    private static byte divmod256(byte[] number58, int startAt) {
136        int remainder = 0;
137        for (int i = startAt; i < number58.length; i++) {
138            int digit58 = (int) number58[i] & 0xFF;
139            int temp = remainder * 58 + digit58;
140 
141            number58[i] = (byte) (temp / 256);
142 
143            remainder = temp % 256;
144        }
145 
146        return (byte) remainder;
147    }
148 
149    private static byte[] copyOfRange(byte[] source, int from, int to) {
150        byte[] range = new byte[to - from];
151        System.arraycopy(source, from, range, 0, range.length);
152 
153        return range;
154    }
155 
156 
157}
158
159package cn.ubibi.wsblog.utils;
160
161import org.slf4j.Logger;
162import org.slf4j.LoggerFactory;
163
164import java.security.MessageDigest;
165import java.util.Base64;
166
167public class CryptoUtils {
168
169    private static final Logger LOGGER = LoggerFactory.getLogger(CryptoUtils.class);
170
171    private static final String ALGORITHM_MD5 = "MD5";
172    private static final String ALGORITHM_SHA256 = "SHA-256";
173    private static final String ALGORITHM_SHA1 = "SHA-1";
174    private static final String CHAT_SET_UTF8 = "UTF-8";
175    private static final String ENCODE_STRING_HEX = "hex";
176    private static final String ENCODE_STRING_BASE64 = "base64";
177    private static final String ENCODE_STRING_BASE58 = "base58";
178
179
180    //32个字符
181    public static String encrypt_md5_hex(String str) {
182        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_HEX);
183    }
184
185    //24个字符
186    public static String encrypt_md5_base64(String str) {
187        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_BASE64);
188    }
189
190    //22个字符
191    public static String encrypt_md5_base58(String str) {
192        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_BASE58);
193    }
194
195    //40个字符
196    public static String encrypt_sha1_hex(String str) {
197        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_HEX);
198    }
199
200
201    //28个字符
202    public static String encrypt_sha1_base64(String str) {
203        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_BASE64);
204    }
205
206    //28个字符
207    public static String encrypt_sha1_base58(String str) {
208        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_BASE58);
209    }
210
211
212    //64个字符
213    public static String encrypt_sha256_hex(String str) {
214        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_HEX);
215    }
216
217    //44个字符
218    public static String encrypt_sha256_base64(String str) {
219        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_BASE64);
220    }
221
222    //44个字符
223    public static String encrypt_sha256_base58(String str) {
224        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_BASE58);
225    }
226
227
228    private static String encrypt_hash_function(String str, String algorithm, String chatset, String encodeMethod) {
229        MessageDigest messageDigest;
230        String encodeStr = "";
231        try {
232            messageDigest = MessageDigest.getInstance(algorithm);
233            messageDigest.update(str.getBytes(chatset));
234
235            byte[] digest_bytes = messageDigest.digest();
236
237            if (ENCODE_STRING_BASE64.equals(encodeMethod)) {
238                encodeStr = byte2Base64(digest_bytes);
239            } else if (ENCODE_STRING_BASE58.equals(encodeMethod)) {
240                encodeStr = Base58.encode(digest_bytes);
241            } else {
242                encodeStr = byte2Hex(digest_bytes);
243            }
244
245        } catch (Exception e) {
246            LOGGER.error("", e);
247        }
248        return encodeStr;
249    }
250
251
252    private static String byte2Base64(byte[] bytes) {
253        return Base64.getEncoder().encodeToString(bytes);
254    }
255
256
257    private static String byte2Hex(byte[] bytes) {
258        StringBuffer stringBuffer = new StringBuffer();
259        String temp;
260        for (int i = 0; i < bytes.length; i++) {
261            temp = Integer.toHexString(bytes[i] & 0xFF);
262            if (temp.length() == 1) {
263                stringBuffer.append("0");
264            }
265            stringBuffer.append(temp);
266        }
267        return stringBuffer.toString();
268    }
269
270
271    public static void main(String[] args) {
272        String x = encrypt_sha256_base58("12345");
273        System.out.println(x);
274        System.out.println(x.length());
275    }
276
277}