bouncycastle: upgrade to version 1.52

Change-Id: I227db8e458e67af46ccb1c07bfca77a733f25979

3 files changed, 16 insertions, 19 deletions

diff --git a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/CipherSpi.java b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/CipherSpi.java
index dcb9c234..aceb5ee0 100644
--- a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/CipherSpi.java
+++ b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/CipherSpi.java
@@ -35,12 +35,16 @@ import org.bouncycastle.crypto.engines.RSABlindedEngine;
 import org.bouncycastle.crypto.params.ParametersWithRandom;
 import org.bouncycastle.jcajce.provider.asymmetric.util.BaseCipherSpi;
 import org.bouncycastle.jcajce.provider.util.DigestFactory;
+import org.bouncycastle.jcajce.util.BCJcaJceHelper;
+import org.bouncycastle.jcajce.util.JcaJceHelper;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.bouncycastle.util.Strings;
 
 public class CipherSpi
     extends BaseCipherSpi
 {
+    private final JcaJceHelper helper = new BCJcaJceHelper();
+
     private AsymmetricBlockCipher cipher;
     private AlgorithmParameterSpec paramSpec;
     private AlgorithmParameters engineParams;
@@ -145,7 +149,7 @@ public class CipherSpi
             {
                 try
                 {
-                    engineParams = AlgorithmParameters.getInstance("OAEP", BouncyCastleProvider.PROVIDER_NAME);
+                    engineParams = helper.createAlgorithmParameters("OAEP");
                     engineParams.init(paramSpec);
                 }
                 catch (Exception e)
diff --git a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/DigestSignatureSpi.java b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/DigestSignatureSpi.java
index 13f7c933..123ed415 100644
--- a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/DigestSignatureSpi.java
+++ b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/DigestSignatureSpi.java
@@ -44,6 +44,7 @@ import org.bouncycastle.crypto.digests.AndroidDigestFactory;
 // END android-added
 import org.bouncycastle.crypto.encodings.PKCS1Encoding;
 import org.bouncycastle.crypto.engines.RSABlindedEngine;
+import org.bouncycastle.util.Arrays;
 
 public class DigestSignatureSpi
     extends SignatureSpi
@@ -178,13 +179,7 @@ public class DigestSignatureSpi
 
         if (sig.length == expected.length)
         {
-            for (int i = 0; i < sig.length; i++)
-            {
-                if (sig[i] != expected[i])
-                {
-                    return false;
-                }
-            }
+            return Arrays.constantTimeAreEqual(sig, expected);
         }
         else if (sig.length == expected.length - 2)  // NULL left out
         {
@@ -194,28 +189,26 @@ public class DigestSignatureSpi
             expected[1] -= 2;      // adjust lengths
             expected[3] -= 2;
 
+            int nonEqual = 0;
+
             for (int i = 0; i < hash.length; i++)
             {
-                if (sig[sigOffset + i] != expected[expectedOffset + i])  // check hash
-                {
-                    return false;
-                }
+                nonEqual |= (sig[sigOffset + i] ^ expected[expectedOffset + i]);
             }
 
             for (int i = 0; i < sigOffset; i++)
             {
-                if (sig[i] != expected[i])  // check header less NULL
-                {
-                    return false;
-                }
+                nonEqual |= (sig[i] ^ expected[i]);  // check header less NULL
             }
+
+            return nonEqual == 0;
         }
         else
         {
+            Arrays.constantTimeAreEqual(expected, expected);  // keep time "steady".
+
             return false;
         }
-
-        return true;
     }
 
     protected void engineSetParameter(
diff --git a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi.java b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi.java
index c61e7cb8..f779a66a 100644
--- a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi.java
+++ b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi.java
@@ -23,7 +23,7 @@ public class KeyPairGeneratorSpi
     }
 
     final static BigInteger defaultPublicExponent = BigInteger.valueOf(0x10001);
-    final static int defaultTests = 12;
+    final static int defaultTests = 112;
 
     RSAKeyGenerationParameters param;
     RSAKeyPairGenerator engine;