java hmac sha1_Java的HMAC_SHA1算法源码

Bertha 。 2022-11-02 11:40 138阅读 0赞

public class SHA1 \{

private final int\[\] abcde = \{0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 \};

// 摘要数据存储数组

private int\[\] digestInt = new int\[5\];

// 计算过程中的临时数据存储数组

private int\[\] tmpData = new int\[80\];

// 计算sha-1摘要

private int process\_input\_bytes(byte\[\] bytedata) \{

// 初试化常量

System.arraycopy(abcde, 0, digestInt, 0, abcde.length);

// 格式化输入字节数组，补10及长度数据

byte\[\] newbyte = byteArrayFormatData(bytedata);

// 获取数据摘要计算的数据单元个数

int MCount = newbyte.length / 64;

// 循环对每个数据单元进行摘要计算

for (int pos = 0; pos < MCount; pos++) \{

// 将每个单元的数据转换成16个整型数据，并保存到tmpData的前16个数组元素中

for (int j = 0; j < 16; j++) \{

tmpData\[j\] = byteArrayToInt(newbyte, (pos \* 64) + (j \* 4));

// 摘要计算函数

encrypt();

return 20;

// 格式化输入字节数组格式

private byte\[\] byteArrayFormatData(byte\[\] bytedata) \{

// 补0数量

int zeros = 0;

// 补位后总位数

int size = 0;

// 原始数据长度

int n = bytedata.length;

// 模64后的剩余位数

int m = n % 64;

// 计算添加0的个数以及添加10后的总长度

if (m < 56) \{

zeros = 55 - m;

size = n - m + 64;

\} else if (m == 56) \{

zeros = 63;

size = n + 8 + 64;

\} else \{

zeros = 63 - m + 56;

size = (n + 64) - m + 64;

// 补位后生成的新数组内容

byte\[\] newbyte = new byte\[size\];

// 复制数组的前面部分

System.arraycopy(bytedata, 0, newbyte, 0, n);

// 获得数组Append数据元素的位置

int l = n;

// 补1操作

newbyte\[l++\] = (byte) 0x80;

// 补0操作

for (int i = 0; i < zeros; i++) \{

newbyte\[l++\] = (byte) 0x00;

// 计算数据长度，补数据长度位共8字节，长整型

long N = (long) n \* 8;

byte h8 = (byte) (N & 0xFF);

byte h7 = (byte) ((N >> 8) & 0xFF);

byte h6 = (byte) ((N >> 16) & 0xFF);

byte h5 = (byte) ((N >> 24) & 0xFF);

byte h4 = (byte) ((N >> 32) & 0xFF);

byte h3 = (byte) ((N >> 40) & 0xFF);

byte h2 = (byte) ((N >> 48) & 0xFF);

byte h1 = (byte) (N >> 56);

newbyte\[l++\] = h1;

newbyte\[l++\] = h2;

newbyte\[l++\] = h3;

newbyte\[l++\] = h4;

newbyte\[l++\] = h5;

newbyte\[l++\] = h6;

newbyte\[l++\] = h7;

newbyte\[l++\] = h8;

return newbyte;

private int f1(int x, int y, int z) \{

return (x & y) | (~x & z);

private int f2(int x, int y, int z) \{

return x ^ y ^ z;

private int f3(int x, int y, int z) \{

return (x & y) | (x & z) | (y & z);

private int f4(int x, int y) \{

return (x << y) | x >>> (32 - y);

// 单元摘要计算函数

private void encrypt() \{

for (int i = 16; i <= 79; i++) \{

tmpData\[i\] = f4(tmpData\[i - 3\] ^ tmpData\[i - 8\] ^ tmpData\[i - 14\] ^

tmpData\[i - 16\], 1);

int\[\] tmpabcde = new int\[5\];

for (int i1 = 0; i1 < tmpabcde.length; i1++) \{

tmpabcde\[i1\] = digestInt\[i1\];

for (int j = 0; j <= 19; j++) \{

int tmp = f4(tmpabcde\[0\], 5) +

f1(tmpabcde\[1\], tmpabcde\[2\], tmpabcde\[3\]) + tmpabcde\[4\] +

tmpData\[j\] + 0x5a827999;

tmpabcde\[4\] = tmpabcde\[3\];

tmpabcde\[3\] = tmpabcde\[2\];

tmpabcde\[2\] = f4(tmpabcde\[1\], 30);

tmpabcde\[1\] = tmpabcde\[0\];

tmpabcde\[0\] = tmp;

for (int k = 20; k <= 39; k++) \{

int tmp = f4(tmpabcde\[0\], 5) +

f2(tmpabcde\[1\], tmpabcde\[2\], tmpabcde\[3\]) + tmpabcde\[4\] +

tmpData\[k\] + 0x6ed9eba1;

tmpabcde\[4\] = tmpabcde\[3\];

tmpabcde\[3\] = tmpabcde\[2\];

tmpabcde\[2\] = f4(tmpabcde\[1\], 30);

tmpabcde\[1\] = tmpabcde\[0\];

tmpabcde\[0\] = tmp;

for (int l = 40; l <= 59; l++) \{

int tmp = f4(tmpabcde\[0\], 5) +

f3(tmpabcde\[1\], tmpabcde\[2\], tmpabcde\[3\]) + tmpabcde\[4\] +

tmpData\[l\] + 0x8f1bbcdc;

tmpabcde\[4\] = tmpabcde\[3\];

tmpabcde\[3\] = tmpabcde\[2\];

tmpabcde\[2\] = f4(tmpabcde\[1\], 30);

tmpabcde\[1\] = tmpabcde\[0\];

tmpabcde\[0\] = tmp;

for (int m = 60; m <= 79; m++) \{

int tmp = f4(tmpabcde\[0\], 5) +

f2(tmpabcde\[1\], tmpabcde\[2\], tmpabcde\[3\]) + tmpabcde\[4\] +

tmpData\[m\] + 0xca62c1d6;

tmpabcde\[4\] = tmpabcde\[3\];

tmpabcde\[3\] = tmpabcde\[2\];

tmpabcde\[2\] = f4(tmpabcde\[1\], 30);

tmpabcde\[1\] = tmpabcde\[0\];

tmpabcde\[0\] = tmp;

for (int i2 = 0; i2 < tmpabcde.length; i2++) \{

digestInt\[i2\] = digestInt\[i2\] + tmpabcde\[i2\];

for (int n = 0; n < tmpData.length; n++) \{

tmpData\[n\] = 0;

// 4字节数组转换为整数

private int byteArrayToInt(byte\[\] bytedata, int i) \{

return ((bytedata\[i\] & 0xff) << 24) | ((bytedata\[i + 1\] & 0xff) << 16) |

((bytedata\[i + 2\] & 0xff) << 8) | (bytedata\[i + 3\] & 0xff);

// 整数转换为4字节数组

private void intToByteArray(int intValue, byte\[\] byteData, int i) \{

byteData\[i\] = (byte) (intValue >>> 24);

byteData\[i + 1\] = (byte) (intValue >>> 16);

byteData\[i + 2\] = (byte) (intValue >>> 8);

byteData\[i + 3\] = (byte) intValue;

// 计算sha-1摘要，返回相应的字节数组

public byte\[\] getDigestOfBytes(byte\[\] byteData) \{

process\_input\_bytes(byteData);

byte\[\] digest = new byte\[20\];

for (int i = 0; i < digestInt.length; i++) \{

intToByteArray(digestInt\[i\], digest, i \* 4);

return digest;

// 计算sha-1摘要，返回相应的十六进制字符串

public String getDigestOfString(byte\[\] byteData) \{

return byteArrayToHexString(getDigestOfBytes(byteData));

public static byte\[\] getHmacSHA1( String data,String key)\{

byte\[\] ipadArray = new byte\[64\];

byte\[\] opadArray = new byte\[64\];

byte\[\] keyArray = new byte\[64\];

int ex = key.length();

SHA1 sha1= new SHA1();

if (key.length() > 64) \{

byte\[\] temp = sha1.getDigestOfBytes(key.getBytes());

ex = temp.length;

for (int i = 0; i < ex; i++) \{

keyArray\[i\] = temp\[i\];

\}else\{

byte\[\] temp = key.getBytes();

for (int i = 0; i < temp.length; i++) \{

keyArray\[i\] = temp\[i\];

for (int i = ex; i < 64; i++) \{

keyArray\[i\] = 0;

for (int j = 0; j < 64; j++) \{

ipadArray\[j\] = (byte) (keyArray\[j\] ^ 0x36);

opadArray\[j\] = (byte) (keyArray\[j\] ^ 0x5C);

byte\[\] tempResult = sha1.getDigestOfBytes(join(ipadArray,data.getBytes()));

return sha1.getDigestOfBytes(join(opadArray,tempResult));

public static void main(String\[\] args) \{

String data = "Hi There";

System.out.println(data);

String key = "123";

System.out.println(key);

//String digest = new SHA1().getDigestOfString(data.getBytes());

String digest = bytesToHexString(getHmacSHA1(data,key));

System.out.println(digest); // 计算的加密结果为：0F7B5419BB8358632AFCA202C96E9249FB936D95

与http://blog.csdn.net/yanzhibo/article/details/8469691页面的C++ HMAC\_SHA1结果一致。

java hmac sha1_Java的HMAC_SHA1算法源码

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