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Ready for benchmark.

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Casper V. Kristensen 2019-12-10 18:43:52 +01:00
parent 9c0fdb0cff
commit 3aeaaafdb4
4 changed files with 34 additions and 50 deletions
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18
pir/src/main/java/dk/au/pir/Driver.java
View file

@ -79,38 +79,38 @@ public class Driver {
try { try {
profiler.reset(); profiler.reset();
testSendAllScheme(settings, database, profiler); testSendAllScheme(settings, database, profiler);
reportResult(numServers, databaseSize, blockSize, profiler, "SendAllScheme"); reportResult(numServers, databaseSize, blockSize, profiler, "Send_All");
} catch (OutOfMemoryError error) { } catch (OutOfMemoryError error) {
reportFailure(numServers, databaseSize, blockSize, "oom", "SendAllScheme"); reportFailure(numServers, databaseSize, blockSize, "oom", "Send_All");
} }
if (numServers == 2) { if (numServers == 2) {
try { try {
profiler.reset(); profiler.reset();
testXORScheme(settings, database, profiler); testXORScheme(settings, database, profiler);
reportResult(numServers, databaseSize, blockSize, profiler, "XORScheme"); reportResult(numServers, databaseSize, blockSize, profiler, "XOR");
} catch (OutOfMemoryError error) { } catch (OutOfMemoryError error) {
reportFailure(numServers, databaseSize, blockSize, "oom", "XORScheme"); reportFailure(numServers, databaseSize, blockSize, "oom", "XOR");
} }
try { try {
profiler.reset(); profiler.reset();
testSqrtXORScheme(settings, database, profiler); testSqrtXORScheme(settings, database, profiler);
reportResult(numServers, databaseSize, blockSize, profiler, "SqrtXORScheme"); reportResult(numServers, databaseSize, blockSize, profiler, "Balanced_XOR");
} catch (OutOfMemoryError error) { } catch (OutOfMemoryError error) {
reportFailure(numServers, databaseSize, blockSize, "oom", "SqrtXORScheme"); reportFailure(numServers, databaseSize, blockSize, "oom", "Balanced_XOR");
} }
} }
try { try {
boolean interPolySchemeShouldFuckOff = true; boolean interPolySchemeShouldFuckOff = false;
if (numServers != 1 && !interPolySchemeShouldFuckOff) { if (numServers != 1 && !interPolySchemeShouldFuckOff) {
try { try {
profiler.reset(); profiler.reset();
testInterPolyScheme(settings, database, profiler); testInterPolyScheme(settings, database, profiler);
reportResult(numServers, databaseSize, blockSize, profiler, "InterPolyScheme"); reportResult(numServers, databaseSize, blockSize, profiler, "Interpolation");
} catch (OutOfMemoryError error) { } catch (OutOfMemoryError error) {
reportFailure(numServers, databaseSize, blockSize, "oom", "InterPolyScheme"); reportFailure(numServers, databaseSize, blockSize, "oom", "Interpolation");
} }
} }
} catch (IllegalArgumentException ignored) { } catch (IllegalArgumentException ignored) {

20
pir/src/main/java/dk/au/pir/profilers/Profiler.java
View file

@ -95,11 +95,23 @@ public class Profiler {
return numbers; return numbers;
} }
public int[][] clientReceive(int[][] numbers) { public boolean clientReceive(boolean bool) {
for (int[] n: numbers) { this.received += 1;
this.clientReceive(n); return bool;
}
public boolean[] clientReceive(boolean[] booleans) {
for (boolean b: booleans) {
this.received += booleans.length;
} }
return numbers; return booleans;
}
public boolean[][] clientReceive(boolean[][] booleansArray) {
for (boolean[] array: booleansArray) {
this.clientReceive(array);
}
return booleansArray;
} }
public FieldElement clientReceive(FieldElement element) { public FieldElement clientReceive(FieldElement element) {

36
pir/src/main/java/dk/au/pir/protocols/xor/SqrtXORClient.java
View file

@ -50,15 +50,6 @@ public class SqrtXORClient {
} }
public int[] receive(int record) { public int[] receive(int record) {
// TODO: This is bad - should merge with above receiveBit-method to send entire array of bits at once (like the simple XORScheme)
int[] result = new int[settings.getBlocksize()];
for (int i = 0; i < settings.getBlocksize(); i++) {
result[i] = this.receiveBit(record * this.settings.getBlocksize() + i);
}
return result;
}
public int[] receiveBlock(int index) {
/** /**
* PLAN: * PLAN:
* Divide n into sqrt(n) * Divide n into sqrt(n)
@ -68,33 +59,16 @@ public class SqrtXORClient {
boolean[] S1 = selectIndexes(this.sqrtSize); boolean[] S1 = selectIndexes(this.sqrtSize);
boolean[] S2 = S1.clone(); boolean[] S2 = S1.clone();
int impBlock = (int) Math.floor(index/this.sqrtSize); int impBlock = (int) Math.floor(record/this.sqrtSize);
S2[index % this.sqrtSize] = !S1[index % this.sqrtSize]; // Remove the index, if it's contained in S. S2[record % this.sqrtSize] = !S1[record % this.sqrtSize]; // Remove the index, if it's contained in S.
int[][] resBit1 = this.profiler.clientReceive(this.servers[0].computeBlock(this.profiler.clientSend(S1))); boolean[][] resBit1 = this.profiler.clientReceive(this.servers[0].computeBlock(this.profiler.clientSend(S1)));
int[][] resBit2 = this.profiler.clientReceive(this.servers[1].computeBlock(this.profiler.clientSend(S2))); boolean[][] resBit2 = this.profiler.clientReceive(this.servers[1].computeBlock(this.profiler.clientSend(S2)));
int[] res = new int[this.settings.getBlocksize()]; int[] res = new int[this.settings.getBlocksize()];
for (int i = 0; i < this.settings.getBlocksize(); i++) { for (int i = 0; i < this.settings.getBlocksize(); i++) {
res[i] = ((resBit1[impBlock][i] + resBit2[impBlock][i]) % 2); res[i] = (resBit1[impBlock][i] ^ resBit2[impBlock][i]) ? 1 : 0;
} }
return res; return res;
} }
public static void main(String[] args) {
PIRSettings settings = new PIRSettings(9, 2, 3);
SqrtXORServer[] servers = new SqrtXORServer[settings.getNumServers()];
Database database = new ListDatabase(settings, new int[] {1,0,1,0,1,0,0,0,1,1,0,1,0,1,0,0,0,1,1,0,1,0,1,0,0,0,1});
for (int i = 0; i < settings.getNumServers(); i++) {
servers[i] = new SqrtXORServer(database, settings);
}
SqrtXORClient client = new SqrtXORClient(settings, servers, null);
System.out.println(Arrays.toString(client.receiveBlock(1)));
}
} }

10
pir/src/main/java/dk/au/pir/protocols/xor/SqrtXORServer.java
View file

@ -32,10 +32,10 @@ public class SqrtXORServer {
return resList; return resList;
} }
public int[][] computeBlock(boolean[] indexes) { public boolean[][] computeBlock(boolean[] indexes) {
int[][] resList = new int[this.sqrtSize][this.settings.getBlocksize()]; boolean[][] resList = new boolean[this.sqrtSize][this.settings.getBlocksize()];
for (int i = 0; i < this.sqrtSize; i++) { for (int i = 0; i < this.sqrtSize; i++) {
int[] tmpRes = new int[this.settings.getBlocksize()]; boolean[] tmpRes = new boolean[this.settings.getBlocksize()];
for (int j = 0; j < this.sqrtSize; j++) { for (int j = 0; j < this.sqrtSize; j++) {
try { try {
if (indexes[j]) { if (indexes[j]) {
@ -43,9 +43,7 @@ public class SqrtXORServer {
// We then wish to loop over j*blockSize + indi // We then wish to loop over j*blockSize + indi
// for j = 0; we want 0,1,2 // for j = 0; we want 0,1,2
// for j = 1; we want 3,4,5 and so on.. // for j = 1; we want 3,4,5 and so on..
tmpRes[indi] = ((tmpRes[indi] ? 1 : 0) + this.database.get(((j * this.settings.getBlocksize()) + indi) + (this.sqrtSize * i))) % 2 == 1;
tmpRes[indi] = (tmpRes[indi] + this.database.get(((j*this.settings.getBlocksize()) + indi)
+ (this.sqrtSize * i))) % 2;
} }
} catch (ArrayIndexOutOfBoundsException ignored) { } catch (ArrayIndexOutOfBoundsException ignored) {