| Init() {
count[0] = 0L;
count[1] = 0L;
///* Load magic initialization constants.
state[0] = 0x67452301L;
state[1] = 0xefcdab89L;
state[2] = 0x98badcfeL;
state[3] = 0x10325476L;
return;
}
/* F, G, H ,I 是4个基本的MD5函数，在原始的MD5的C实现中，由于它们是
简单的位运算，可能出于效率的考虑把它们实现成了宏，在java中，我们把它们
实现成了private方法，名字保持了原来C中的。 */
private long F(long x, long y, long z) {
return (x & y) | ((~x) & z);
}
private long G(long x, long y, long z) {
return (x & z) | (y & (~z));
}
private long H(long x, long y, long z) {
return x ^ y ^ z;
}
private long I(long x, long y, long z) {
return y ^ (x | (~z));
}
/*
FF,GG,HH和II将调用F,G,H,I进行近一步变换
FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
Rotation is separate from addition to prevent recomputation.
*/
private long FF(long a, long b, long c, long d, long x, long s,
long ac) {
a = F (b, c, d) x ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a = b;
return a;
}
private long GG(long a, long b, long c, long d, long x, long s,
long ac) {
a = G (b, c, d) x ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a = b;
return a;
}
private long HH(long a, long b, long c, long d, long x, long s,
long ac) {
a = H (b, c, d) x ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a = b;
return a;
}
private long II(long a, long b, long c, long d, long x, long s,
long ac) {
a = I (b, c, d) x ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a = b;
return a;
}
/*
md5Update是MD5的主计算过程，inbuf是要变换的字节串，inputlen是长度，这个
函数由getMD5ofStr调用，调用之前需要调用md5init，因此把它设计成private的
|
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