1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
import java.security.*;
class md5test {
// gnu-crypto/source/gnu/testlet/gnu/crypto/hash/TestOfMD5.java
public static void main(String[] argv) {
String[] strings = {
"a",
"abc",
"message digest",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"12345678901234567890123456789012345678901234567890123456789012345678901234567890"
};
String[] expected = {
"0CC175B9C0F1B6A831C399E269772661",
"900150983CD24FB0D6963F7D28E17F72",
"F96B697D7CB7938D525A2F31AAF161D0",
"C3FCD3D76192E4007DFB496CCA67E13B",
"D174AB98D277D9F5A5611C2C9F419D9F",
"57EDF4A22BE3C955AC49DA2E2107B67A"
};
for (int i = 0; i < strings.length; i++)
testString(strings[i], expected[i]);
}
public static void testString(String string, String expected) {
MessageDigest md=null;
try {
md = MessageDigest.getInstance("MD5");
md.update(string.getBytes(), 0, string.length());
String result = toString(md.digest());
System.out.println(expected);
System.out.println(result);
if (!expected.equals(result))
System.out.println("NOT EQUAL!");
} catch (Exception x) {
x.printStackTrace();
}
}
public static String toString(byte[] ba) {
return toString(ba, 0, ba.length);
}
public static final String toString(byte[] ba, int offset, int length) {
char[] buf = new char[length * 2];
for (int i = 0, j = 0, k; i < length; ) {
k = ba[offset + i++];
buf[j++] = HEX_DIGITS[(k >>> 4) & 0x0F];
buf[j++] = HEX_DIGITS[ k & 0x0F];
}
return new String(buf);
}
private static final char[] HEX_DIGITS = "0123456789ABCDEF".toCharArray();
}
|
