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Add varargs variant to HmacUtil

This commit is contained in:
Ravi Khadiwala 2024-02-26 10:56:14 -06:00 committed by ravi-signal
parent 2adf1e5017
commit 4e5dd914dd
1 changed files with 14 additions and 2 deletions
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16
service/src/main/java/org/whispersystems/textsecuregcm/util/HmacUtils.java
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@ -27,16 +27,28 @@ public final class HmacUtils {
} }
}); });
public static byte[] hmac256(final byte[] key, final byte[] input) { private static Mac initializedThreadLocalMac(final byte[] key) {
try { try {
final Mac mac = THREAD_LOCAL_HMAC_SHA_256.get(); final Mac mac = THREAD_LOCAL_HMAC_SHA_256.get();
mac.init(new SecretKeySpec(key, HMAC_SHA_256)); mac.init(new SecretKeySpec(key, HMAC_SHA_256));
return mac.doFinal(input); return mac;
} catch (final InvalidKeyException e) { } catch (final InvalidKeyException e) {
throw new RuntimeException(e); throw new RuntimeException(e);
} }
} }
public static byte[] hmac256(final byte[] key, final byte[] input) {
return initializedThreadLocalMac(key).doFinal(input);
}
public static byte[] hmac256(final byte[] key, final byte[]... inputs) {
final Mac mac = initializedThreadLocalMac(key);
for (byte[] input : inputs) {
mac.update(input);
}
return mac.doFinal();
}
public static byte[] hmac256(final byte[] key, final String input) { public static byte[] hmac256(final byte[] key, final String input) {
return hmac256(key, input.getBytes(StandardCharsets.UTF_8)); return hmac256(key, input.getBytes(StandardCharsets.UTF_8));
} }