• Java BASE58 以及 md5,sha256,sha1


    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());
        }
    
    }
    

      

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  • 原文地址:https://www.cnblogs.com/lhp2012/p/9387614.html
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