65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
package org.thoughtcrime.securesms.lock;
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import androidx.annotation.NonNull;
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import org.signal.argon2.Argon2;
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import org.signal.argon2.Argon2Exception;
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import org.signal.argon2.MemoryCost;
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import org.signal.argon2.Type;
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import org.signal.argon2.UnknownTypeException;
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import org.signal.argon2.Version;
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import org.thoughtcrime.securesms.util.Util;
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import org.whispersystems.signalservice.api.KeyBackupService;
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import org.whispersystems.signalservice.api.kbs.HashedPin;
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import org.whispersystems.signalservice.internal.registrationpin.PinHasher;
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public final class PinHashing {
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private PinHashing() {
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}
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public static HashedPin hashPin(@NonNull String pin, @NonNull KeyBackupService.HashSession hashSession) {
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return PinHasher.hashPin(PinHasher.normalize(pin), password -> {
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try {
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return new Argon2.Builder(Version.V13)
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.type(Type.Argon2id)
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.memoryCost(MemoryCost.MiB(16))
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.parallelism(1)
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.iterations(32)
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.hashLength(64)
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.build()
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.hash(password, hashSession.hashSalt())
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.getHash();
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} catch (Argon2Exception e) {
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throw new AssertionError(e);
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}
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});
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}
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public static String localPinHash(@NonNull String pin) {
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byte[] normalized = PinHasher.normalize(pin);
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try {
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return new Argon2.Builder(Version.V13)
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.type(Type.Argon2i)
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.memoryCost(MemoryCost.KiB(256))
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.parallelism(1)
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.iterations(50)
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.hashLength(32)
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.build()
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.hash(normalized, Util.getSecretBytes(16))
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.getEncoded();
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} catch (Argon2Exception e) {
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throw new AssertionError(e);
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}
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}
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public static boolean verifyLocalPinHash(@NonNull String localPinHash, @NonNull String pin) {
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byte[] normalized = PinHasher.normalize(pin);
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try {
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return Argon2.verify(localPinHash, normalized);
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} catch (UnknownTypeException e) {
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throw new AssertionError(e);
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}
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}
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}
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