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SHA1 fully tested + working

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xiao
2026-05-27 21:33:31 -04:00
parent 3eb755bc90
commit 4f159c68be
5 changed files with 132 additions and 48 deletions
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src/de/caydenno1/xacrypto/XACrypto.java
+2 -5
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@@ -1,10 +1,7 @@
package de.caydenno1.xacrypto;
import de.caydenno1.xacrypto.hash.sha.SHA0;
public class XACrypto {
private XACrypto() {}
static void main(String[] args) {
String res = SHA0.hash("tah");
System.out.println(res);
}
static void main(String[] args) {}
}
src/de/caydenno1/xacrypto/hash/sha/SHA0.java
+5 -42
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@@ -4,13 +4,16 @@ import de.caydenno1.xacrypto.misc.Constants;
import java.nio.charset.StandardCharsets;
import static de.caydenno1.xacrypto.hash.sha.Shared.INT2BYTE;
import static de.caydenno1.xacrypto.hash.sha.Shared.hex;
public class SHA0 {
// we really only need one file. very simple code
public static byte[] hash(byte[] data){
System.out.println("Beware, SHA0 is deprecated and cryptographically broken. Use at your own risk.");
byte[] padded = pad(data);
byte[] padded = Shared.pad(data);
int a0 = Constants.SHA0_H[0], a1 = Constants.SHA0_H[1], a2 = Constants.SHA0_H[2], a3 = Constants.SHA0_H[3], a4 = Constants.SHA0_H[4];
int a0 = Constants.SHA_H[0], a1 = Constants.SHA_H[1], a2 = Constants.SHA_H[2], a3 = Constants.SHA_H[3], a4 = Constants.SHA_H[4];
int[] w = new int[80];
@@ -69,48 +72,8 @@ public class SHA0 {
return INT2BYTE(a0, a1, a2, a3, a4);
}
public static String hash(String data) {
byte[] result = hash(data.getBytes(StandardCharsets.UTF_8));
return hex(result);
}
public static String hex(byte[] data) {
StringBuilder builder = new StringBuilder();
for (byte b : data) builder.append(String.format("%02x", b));
return builder.toString();
}
private static byte[] pad(byte[] mesg) {
int len = mesg.length;
long bit = (long) len * 8;
int padL = (64 - ((len + 9) % 64)) % 64;
byte[] o = new byte[len+padL+9];
System.arraycopy(mesg,0,o,0,len);
o[len] = (byte) 0x80;
for (int i = 0; i < 8; i++) {
o[o.length - (i+1)] = (byte) (bit >>> (8*i));
}
return o;
}
private static byte[] INT2BYTE(int a,int b,int c,int d,int e) {
byte[] out = new byte[20];
write(a, out, 0);
write(b, out, 4);
write(c, out, 8);
write(d, out, 12);
write(e, out, 16);
return out;
}
private static void write(int v, byte[] o, int i) {
o[i ] = (byte)(v >>> 24);
o[i+1] = (byte)(v >>> 16);
o[i+2] = (byte)(v >>> 8);
o[i+3] = (byte)(v );
}
}
src/de/caydenno1/xacrypto/hash/sha/SHA1.java
+82
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@@ -0,0 +1,82 @@
package de.caydenno1.xacrypto.hash.sha;
import de.caydenno1.xacrypto.misc.Constants;
import de.caydenno1.xacrypto.hash.sha.Shared;
import java.nio.charset.StandardCharsets;
import static de.caydenno1.xacrypto.hash.sha.Shared.hex;
public class SHA1 {
public static byte[] hash(byte[] data){
byte[] padded = Shared.pad(data);
int a0 = Constants.SHA_H[0], a1 = Constants.SHA_H[1], a2 = Constants.SHA_H[2], a3 = Constants.SHA_H[3], a4 = Constants.SHA_H[4];
int[] w = new int[80];
for (int i = 0 ; i < padded.length ; i += 64) {
for (int j = 0 ; j < 16 ; j++) {
int o = i + j * 4;
w[j] = ((padded[o] & 0xff) << 24)
| ((padded[o + 1] & 0xff) << 16)
| ((padded[o + 2] & 0xff) << 8)
| (padded[o + 3] & 0xff);
}
for (int t = 16; t < 80; t++) {
w[t] = de.caydenno1.xacrypto.hash.ROT.ROTL(
w[t-3] ^ w[t-8] ^ w[t-14] ^ w[t-16], 1
);
}
int a = a0, b = a1, c = a2, d = a3, e = a4;
for (int t = 0 ; t < 80 ; t++) {
int f, k;
if (t < 20) {
f = (b & c) | ((~b) & d);
k = Constants.SHA1_K[0];
} else if (t < 40) {
f = b ^ c ^ d;
k = Constants.SHA1_K[1];
} else if (t < 60) {
f = (b & c) | (b & d) | (c & d);
k = Constants.SHA1_K[2];
} else {
f = b ^ c ^ d;
k = Constants.SHA1_K[3];
}
int temp = de.caydenno1.xacrypto.hash.ROT.ROTL(a, 5);
temp += f;
temp += e;
temp += k;
temp += w[t];
e = d;
d = c;
c = de.caydenno1.xacrypto.hash.ROT.ROTL(b, 30);
b = a;
a = temp;
}
a0 += a;
a1 += b;
a2 += c;
a3 += d;
a4 += e;
}
return Shared.INT2BYTE(a0, a1, a2, a3, a4);
}
public static String hash(String data) {
byte[] result = hash(data.getBytes(StandardCharsets.UTF_8));
return hex(result);
}
}
src/de/caydenno1/xacrypto/hash/sha/Shared.java
+42
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@@ -0,0 +1,42 @@
package de.caydenno1.xacrypto.hash.sha;
public class Shared {
public static byte[] INT2BYTE(int a,int b,int c,int d,int e) {
byte[] out = new byte[20];
write(a, out, 0);
write(b, out, 4);
write(c, out, 8);
write(d, out, 12);
write(e, out, 16);
return out;
}
public static void write(int v, byte[] o, int i) {
o[i ] = (byte)(v >>> 24);
o[i+1] = (byte)(v >>> 16);
o[i+2] = (byte)(v >>> 8);
o[i+3] = (byte)(v );
}
public static byte[] pad(byte[] mesg) {
int len = mesg.length;
long bit = (long) len * 8;
int padL = (64 - ((len + 9) % 64)) % 64;
byte[] o = new byte[len+padL+9];
System.arraycopy(mesg,0,o,0,len);
o[len] = (byte) 0x80;
for (int i = 0; i < 8; i++) {
o[o.length - (i+1)] = (byte) (bit >>> (8*i));
}
return o;
}
public static String hex(byte[] data) {
StringBuilder builder = new StringBuilder();
for (byte b : data) builder.append(String.format("%02x", b));
return builder.toString();
}
}
src/de/caydenno1/xacrypto/misc/Constants.java
+1 -1
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@@ -31,7 +31,7 @@ public class Constants {
0x510e527f,0x9b05688c,0x1f83d9ab,0x5be0cd19
};
public static final int[] SHA0_H = {
public static final int[] SHA_H = {
0x67452301,0xEFCDAB89,0x98BADCFE,0x10325476,0xC3D2E1F0
};