Java BASE58 以及 md5，sha256，sha1

Posted 2020-12-26 袜子破了

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());
    }

}