diff options
| -rw-r--r-- | java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmUtility.java | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmUtility.java b/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmUtility.java index 287a9d2..d3c185f 100644 --- a/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmUtility.java +++ b/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmUtility.java @@ -20,7 +20,7 @@ package org.matrix.olm; import android.text.TextUtils; import android.util.Log; -import java.util.Random; +import java.security.SecureRandom; /** * Olm SDK helper class. @@ -138,16 +138,10 @@ public class OlmUtility { * @return string containing randoms integer values */ public static String getRandomKey() { - String keyRetValue; - Random rand = new Random(); - StringBuilder strBuilder = new StringBuilder(); - - for(int i = 0; i< RANDOM_KEY_SIZE; i++) { - strBuilder.append(rand.nextInt(RANDOM_RANGE)); - } - keyRetValue = strBuilder.toString(); - - return keyRetValue; + SecureRandom secureRandom = new SecureRandom(); + byte[] buffer = new byte[RANDOM_KEY_SIZE]; + secureRandom.nextBytes(buffer); + return new String(buffer); } /** |