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Convert a SID to String with Java
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | |
<modelVersion>4.0.0</modelVersion> | |
<groupId>SIDConvertToString</groupId> | |
<artifactId>SIDConvertToString</artifactId> | |
<version>0.0.1-SNAPSHOT</version> | |
<build> | |
<sourceDirectory>src</sourceDirectory> | |
<plugins> | |
<plugin> | |
<artifactId>maven-compiler-plugin</artifactId> | |
<version>3.1</version> | |
<configuration> | |
<source>1.6</source> | |
<target>1.6</target> | |
</configuration> | |
</plugin> | |
</plugins> | |
</build> | |
<dependencies> | |
<dependency> | |
<groupId>net.java.dev.jna</groupId> | |
<artifactId>jna</artifactId> | |
<version>4.1.0</version> | |
</dependency> | |
<dependency> | |
<groupId>net.java.dev.jna</groupId> | |
<artifactId>jna-platform</artifactId> | |
<version>4.1.0</version> | |
</dependency> | |
</dependencies> | |
</project> |
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public class SIDConverter { | |
public static String convertSidToStringSid(byte[] sid) { | |
int offset, size; | |
// sid[0] is the Revision, we allow only version 1, because it's the | |
// only that exists right now. | |
if (sid[0] != 1) | |
throw new IllegalArgumentException("SID revision must be 1"); | |
StringBuilder stringSidBuilder = new StringBuilder("S-1-"); | |
// The next byte specifies the numbers of sub authorities (number of | |
// dashes minus two) | |
int subAuthorityCount = sid[1] & 0xFF; | |
// IdentifierAuthority (6 bytes starting from the second) (big endian) | |
long identifierAuthority = 0; | |
offset = 2; | |
size = 6; | |
for (int i = 0; i < size; i++) { | |
identifierAuthority |= (long) (sid[offset + i] & 0xFF) << (8 * (size - 1 - i)); | |
// The & 0xFF is necessary because byte is signed in Java | |
} | |
if (identifierAuthority < Math.pow(2, 32)) { | |
stringSidBuilder.append(Long.toString(identifierAuthority)); | |
} else { | |
stringSidBuilder.append("0x").append( | |
Long.toHexString(identifierAuthority).toUpperCase()); | |
} | |
// Iterate all the SubAuthority (little-endian) | |
offset = 8; | |
size = 4; // 32-bits (4 bytes) for each SubAuthority | |
for (int i = 0; i < subAuthorityCount; i++, offset += size) { | |
long subAuthority = 0; | |
for (int j = 0; j < size; j++) { | |
subAuthority |= (long) (sid[offset + j] & 0xFF) << (8 * j); | |
// The & 0xFF is necessary because byte is signed in Java | |
} | |
stringSidBuilder.append("-").append(subAuthority); | |
} | |
return stringSidBuilder.toString(); | |
} | |
} |
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import static org.junit.Assert.*; | |
import org.junit.Assume; | |
import org.junit.Test; | |
import com.sun.jna.platform.win32.Advapi32Util; | |
import com.sun.jna.platform.win32.Advapi32Util.Account; | |
import com.sun.jna.platform.win32.WinNT.PSID; | |
public class TestSIDConverter { | |
private static final String accountNameTest = "miro.mannino@gmail.com"; | |
private static void generateCombinations(byte[] sid, int offset) throws Exception { | |
String convertedSid, convertedSid2; | |
if (offset >= sid.length) { | |
convertedSid = Advapi32Util.convertSidToStringSid(new PSID(sid)); | |
convertedSid2 = SIDConverter.convertSidToStringSid(sid); | |
if (!convertedSid.equals(convertedSid2)) { | |
throw new Exception("Conversion Error: " | |
+ convertedSid2 + " instead of " + convertedSid); | |
} | |
return; | |
} | |
for (int i = 0; i <= 255; i += 255/3) { | |
sid[offset] = (byte)(i & 0xFF); | |
generateCombinations(sid, offset+1); | |
} | |
} | |
@Test | |
public void testAccount() { | |
Assume.assumeNotNull(accountNameTest); | |
Account account = Advapi32Util.getAccountByName(accountNameTest); | |
assertEquals(account.sidString, SIDConverter.convertSidToStringSid(account.sid)); | |
} | |
@Test | |
public void testCombinations() throws Exception { | |
byte[] sidTemplate = new byte[28]; | |
sidTemplate[0] = 1; | |
generateCombinations(sidTemplate, 1); | |
} | |
} |
Greate.
This can work in .net core in linux version to convert objectSid to string value.
Thanks:)
The License is: Do Whatever You Want With It 2.0
aka I don't care, I hope it helps you!
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Hey @miromannino,
Thank you very much for this very cool gist! 😄
Would you be so kind to tell me under what license it is published?
Again, thanks!
Cheers