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Code Issues Projects Releases Wiki Activity

Use StrongBox on API 28+ if available.

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This commit is contained in:
akwizgran
2020-01-09 15:18:58 +00:00
parent fc6b596241
commit f76d08c19a
3 changed files with 45 additions and 12 deletions
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22
bramble-core/src/main/java/org/briarproject/bramble/crypto/CryptoComponentImpl.java
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@@ -34,6 +34,7 @@ import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.SecureRandom;
import java.security.Security;
import java.security.spec.AlgorithmParameterSpec;
import java.util.logging.Logger;
import javax.annotation.Nullable;
@@ -382,17 +383,28 @@ class CryptoComponentImpl implements CryptoComponent {
KeyStore ks = KeyStore.getInstance(config.getKeyStoreType());
ks.load(null);
// Load or generate the stored key
javax.crypto.SecretKey storedKey;
javax.crypto.SecretKey storedKey = null;
Entry e = ks.getEntry(config.getKeyAlias(), null);
if (e == null) {
if (!generateIfMissing) {
LOG.warning("Key not found in keystore");
return null;
}
KeyGenerator kg = KeyGenerator.getInstance(
config.getMacAlgorithmName(), config.getProviderName());
kg.init(config.getParameterSpec());
storedKey = kg.generateKey();
// Try the parameter specs in order of preference
for (AlgorithmParameterSpec spec : config.getParameterSpecs()) {
try {
KeyGenerator kg = KeyGenerator.getInstance(
config.getMacAlgorithmName(),
config.getProviderName());
kg.init(spec);
storedKey = kg.generateKey();
} catch (GeneralSecurityException e1) {
if (LOG.isLoggable(INFO))
LOG.info("Could not generate key: " + e1);
// Fall back to next spec
}
}
if (storedKey == null) throw new IllegalArgumentException();
LOG.info("Stored key in keystore");
} else {
if (!(e instanceof SecretKeyEntry))