package cn.com.newskysoft.sina.oauth.login;
public class SHA1
{
private static final boolean hexcase = false;
private static final String b64pad = "=";
private static final int chrsz = 8;
//得到字符串SHA-1值的方法
public static String hex_sha1(String s)
{
s = (s == null) ? "" : s;
return binb2hex(core_sha1(str2binb(s), s.length() * chrsz));
}
public static String b64_hmac_sha1(String key, String data)
{
return binb2b64(core_hmac_sha1(key, data));
}
public static String b64_sha1(String s)
{
s = (s==null) ? "" : s;
return binb2b64(core_sha1(str2binb(s), s.length() * chrsz));
}
private static String binb2b64(int[] binarray)
{
String tab = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789+/";
String str = "";
binarray = strechbinarray(binarray, binarray.length * 4);
for (int i = 0; i < binarray.length * 4; i += 3)
{
int triplet = (((binarray[i >> 2] >> 8 * (3 - i % 4)) & 0xff) << 16)
| (((binarray[i + 1 >> 2] >> 8 * (3 - (i + 1) % 4)) & 0xff) << 8)
| ((binarray[i + 2 >> 2] >> 8 * (3 - (i + 2) % 4)) & 0xff);
for (int j = 0; j < 4; j++)
{
if (i * 8 + j * 6 > binarray.length * 32)
{
str += b64pad;
}
else
{
str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3f);
}
}
}
return cleanb64str(str);
}
private static String binb2hex(int[] binarray)
{
String hex_tab = hexcase ? "0123456789abcdef" : "0123456789abcdef";
String str = "";
for (int i = 0; i < binarray.length * 4; i++)
{
char a = (char) hex_tab.charAt((binarray[i >> 2] >> ((3 - i % 4) * 8 + 4)) & 0xf);
char b = (char) hex_tab.charAt((binarray[i >> 2] >> ((3 - i % 4) * 8)) & 0xf);
str += (new Character(a).toString() + new Character(b).toString());
}
return str;
}
private static String binb2str(int[] bin)
{
String str = "";
int mask = (1 << chrsz) - 1;
for (int i = 0; i < bin.length * 32; i += chrsz)
{
str += (char) ((bin[i >> 5] >>> (24 - i % 32)) & mask);
}
return str;
}
private static String cleanb64str(String str)
{
str = (str==null) ? "" : str;
int len = str.length();
if (len <= 1)
{
return str;
}
char trailchar = str.charAt(len - 1);
String trailstr="";
for (int i=len-1;i>=0 && str.charAt(i)==trailchar;i--)
{
trailstr += str.charAt(i);
}
return str.substring(0,str.indexOf(trailstr));
}
private static int[] complete216(int[] oldbin)
{
if (oldbin.length >= 16)
{
return oldbin;
}
int[] newbin = new int[16 - oldbin.length];
for (int i = 0; i<newbin.length; newbin[i]=0,i++);
return concat(oldbin, newbin);
}
private static int[] concat(int[] oldbin, int[] newbin)
{
int[] retval = new int[oldbin.length + newbin.length];
for (int i = 0; i < (oldbin.length + newbin.length); i++)
{
if (i < oldbin.length)
{
retval[i] = oldbin[i];
}
else
{
retval[i] = newbin[i - oldbin.length];
}
}
return retval;
}
private static int[] core_hmac_sha1(String key, String data)
{
key = (key == null) ? "" : key;
data = (data == null) ? "" : data;
int[] bkey = complete216(str2binb(key));
if (bkey.length > 16)
{
bkey = core_sha1(bkey, key.length() * chrsz);
}
int[] ipad = new int[16];
int[] opad = new int[16];
for (int i = 0; i < 16; ipad[i] = 0, opad[i] = 0, i++);
for (int i = 0; i < 16; i++)
{
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5c5c5c5c;
}
int[] hash = core_sha1(concat(ipad, str2binb(data)), 512 + data.length() * chrsz);
return core_sha1(concat(opad, hash), 512 + 160);
}
private static int[] core_sha1(int[] x, int len)
{
int size = (len >> 5);
x = strechbinarray(x, size);
x[len >> 5] |= 0x80 << (24 - len % 32);
size = ((len + 64 >> 9) << 4) + 15;
x = strechbinarray(x, size);
x[((len + 64 >> 9) << 4) + 15] = len;
int[] w = new int[80];
int a = 1732584193;
int b = -271733879;
int c = -1732584194;
int d = 271733878;
int e = -1009589776;
for (int i = 0; i < x.length; i += 16)
{
int olda = a;
int oldb = b;
int oldc = c;
int oldd = d;
int olde = e;
for (int j = 0; j < 80; j++)
{
if (j < 16)
{
w[j] = x[i + j];
}
else
{
w[j] = rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1);
}
int t = safe_add( safe_add(rol(a, 5), sha1_ft(j, b, c, d)), safe_add(safe_add(e, w[j]), sha1_kt(j)));
e = d;
d = c;
c = rol(b, 30);
b = a;
a = t;
}
a = safe_add(a, olda);
b = safe_add(b, oldb);
c = safe_add(c, oldc);
d = safe_add(d, oldd);
e = safe_add(e, olde);
}
int[] retval = new int[5];
retval[0] = a;
retval[1] = b;
retval[2] = c;
retval[3] = d;
retval[4] = e;
return retval;
}
public static String hex_hmac_sha1(String key, String data)
{
return binb2hex(core_hmac_sha1(key, data));
}
private static int rol(int num, int cnt)
{
return (num << cnt) | (num >>> (32 - cnt));
}
private static int safe_add(int x, int y)
{
int lsw = (int) (x & 0xffff) + (int) (y & 0xffff);
int msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xffff);
}
private static int sha1_ft(int t, int b, int c, int d)
{
if (t < 20)
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2012-08-13
14:52:33
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login.rar (4个子文件)
SinaLoginMessage.java 911B
SinaLogin.java 8KB
SHA1.java 10KB
LoginException.java 442B
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