package cn.ubibi.wsblog.utils; import java.io.UnsupportedEncodingException;import java.math.BigInteger; public class Base58 {     private static final char[] ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz".toCharArray();    private static final int[] INDEXES = new int[128];     static {        for (int i = 0; i < INDEXES.length; i++) {            INDEXES[i] = -1;        }        for (int i = 0; i < ALPHABET.length; i++) {            INDEXES[ALPHABET[i]] = i;        }    }     /**     * Encodes the given bytes in base58. No checksum is appended.     */    public static String encode(byte[] input) {        if (input.length == 0) {            return "";        }        input = copyOfRange(input, 0, input.length);        // Count leading zeroes.        int zeroCount = 0;        while (zeroCount < input.length && input[zeroCount] == 0) {            ++zeroCount;        }        // The actual encoding.        byte[] temp = new byte[input.length * 2];        int j = temp.length;         int startAt = zeroCount;        while (startAt < input.length) {            byte mod = divmod58(input, startAt);            if (input[startAt] == 0) {                ++startAt;            }            temp[--j] = (byte) ALPHABET[mod];        }         // Strip extra '1' if there are some after decoding.        while (j < temp.length && temp[j] == ALPHABET[0]) {            ++j;        }        // Add as many leading '1' as there were leading zeros.        while (--zeroCount >= 0) {            temp[--j] = (byte) ALPHABET[0];        }         byte[] output = copyOfRange(temp, j, temp.length);        try {            return new String(output, "US-ASCII");        } catch (UnsupportedEncodingException e) {            throw new RuntimeException(e);  // Cannot happen.        }    }     public static byte[] decode(String input) throws IllegalArgumentException {        if (input.length() == 0) {            return new byte[0];        }        byte[] input58 = new byte[input.length()];        // Transform the String to a base58 byte sequence        for (int i = 0; i < input.length(); ++i) {            char c = input.charAt(i);             int digit58 = -1;            if (c >= 0 && c < 128) {                digit58 = INDEXES[c];            }            if (digit58 < 0) {                throw new IllegalArgumentException("Illegal character " + c + " at " + i);            }             input58[i] = (byte) digit58;        }        // Count leading zeroes        int zeroCount = 0;        while (zeroCount < input58.length && input58[zeroCount] == 0) {            ++zeroCount;        }        // The encoding        byte[] temp = new byte[input.length()];        int j = temp.length;         int startAt = zeroCount;        while (startAt < input58.length) {            byte mod = divmod256(input58, startAt);            if (input58[startAt] == 0) {                ++startAt;            }             temp[--j] = mod;        }        // Do no add extra leading zeroes, move j to first non null byte.        while (j < temp.length && temp[j] == 0) {            ++j;        }         return copyOfRange(temp, j - zeroCount, temp.length);    }     public static BigInteger decodeToBigInteger(String input) throws IllegalArgumentException {        return new BigInteger(1, decode(input));    }     //    // number -> number / 58, returns number % 58    //    private static byte divmod58(byte[] number, int startAt) {        int remainder = 0;        for (int i = startAt; i < number.length; i++) {            int digit256 = (int) number[i] & 0xFF;            int temp = remainder * 256 + digit256;             number[i] = (byte) (temp / 58);             remainder = temp % 58;        }         return (byte) remainder;    }     //    // number -> number / 256, returns number % 256    //    private static byte divmod256(byte[] number58, int startAt) {        int remainder = 0;        for (int i = startAt; i < number58.length; i++) {            int digit58 = (int) number58[i] & 0xFF;            int temp = remainder * 58 + digit58;             number58[i] = (byte) (temp / 256);             remainder = temp % 256;        }         return (byte) remainder;    }     private static byte[] copyOfRange(byte[] source, int from, int to) {        byte[] range = new byte[to - from];        System.arraycopy(source, from, range, 0, range.length);         return range;    }  }

　　

 

 

 

package cn.ubibi.wsblog.utils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.security.MessageDigest;import java.util.Base64;public class CryptoUtils {    private static final Logger LOGGER = LoggerFactory.getLogger(CryptoUtils.class);    private static final String ALGORITHM_MD5 = "MD5";    private static final String ALGORITHM_SHA256 = "SHA-256";    private static final String ALGORITHM_SHA1 = "SHA-1";    private static final String CHAT_SET_UTF8 = "UTF-8";    private static final String ENCODE_STRING_HEX = "hex";    private static final String ENCODE_STRING_BASE64 = "base64";    private static final String ENCODE_STRING_BASE58 = "base58";    //32个字符    public static String encrypt_md5_hex(String str) {        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_HEX);    }    //24个字符    public static String encrypt_md5_base64(String str) {        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_BASE64);    }    //22个字符    public static String encrypt_md5_base58(String str) {        return encrypt_hash_function(str, ALGORITHM_MD5, CHAT_SET_UTF8, ENCODE_STRING_BASE58);    }    //40个字符    public static String encrypt_sha1_hex(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_HEX);    }    //28个字符    public static String encrypt_sha1_base64(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_BASE64);    }    //28个字符    public static String encrypt_sha1_base58(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA1, CHAT_SET_UTF8, ENCODE_STRING_BASE58);    }    //64个字符    public static String encrypt_sha256_hex(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_HEX);    }    //44个字符    public static String encrypt_sha256_base64(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_BASE64);    }    //44个字符    public static String encrypt_sha256_base58(String str) {        return encrypt_hash_function(str, ALGORITHM_SHA256, CHAT_SET_UTF8, ENCODE_STRING_BASE58);    }    private static String encrypt_hash_function(String str, String algorithm, String chatset, String encodeMethod) {        MessageDigest messageDigest;        String encodeStr = "";        try {            messageDigest = MessageDigest.getInstance(algorithm);            messageDigest.update(str.getBytes(chatset));            byte[] digest_bytes = messageDigest.digest();            if (ENCODE_STRING_BASE64.equals(encodeMethod)) {                encodeStr = byte2Base64(digest_bytes);            } else if (ENCODE_STRING_BASE58.equals(encodeMethod)) {                encodeStr = Base58.encode(digest_bytes);            } else {                encodeStr = byte2Hex(digest_bytes);            }        } catch (Exception e) {            LOGGER.error("", e);        }        return encodeStr;    }    private static String byte2Base64(byte[] bytes) {        return Base64.getEncoder().encodeToString(bytes);    }    private static String byte2Hex(byte[] bytes) {        StringBuffer stringBuffer = new StringBuffer();        String temp;        for (int i = 0; i < bytes.length; i++) {            temp = Integer.toHexString(bytes[i] & 0xFF);            if (temp.length() == 1) {                stringBuffer.append("0");            }            stringBuffer.append(temp);        }        return stringBuffer.toString();    }    public static void main(String[] args) {        String x = encrypt_sha256_base58("12345");        System.out.println(x);        System.out.println(x.length());    }}