X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fbouncycastle%2Fcrypto%2Fengines%2FRSAEngine.java;fp=src%2Forg%2Fbouncycastle%2Fcrypto%2Fengines%2FRSAEngine.java;h=c02e20a45349d48fb646400f28c7bf38310a5315;hb=d70f271afd972a3bdeba9ee54b1e9a3334e6fe4b;hp=2cbac54ba1693f9f0c8a40a005bdc35c2226ca4b;hpb=3f13b8f2e9c92b428dc237327f3e86353902ac29;p=org.ibex.core.git

diff --git a/src/org/bouncycastle/crypto/engines/RSAEngine.java b/src/org/bouncycastle/crypto/engines/RSAEngine.java
index 2cbac54..c02e20a 100644
--- a/src/org/bouncycastle/crypto/engines/RSAEngine.java
+++ b/src/org/bouncycastle/crypto/engines/RSAEngine.java
@@ -21,7 +21,7 @@ public class RSAEngine
     /**
      * initialise the RSA engine.
      *
-     * @param forEncryption treu if we are encrypting, false otherwise.
+     * @param forEncryption true if we are encrypting, false otherwise.
      * @param param the necessary RSA key parameters.
      */
     public void init(
@@ -45,12 +45,7 @@ public class RSAEngine
 
         if (forEncryption)
         {
-            if ((bitSize % 8) == 0)
-            {
-                return bitSize / 8 - 1;
-            }
-
-            return bitSize / 8;
+            return (bitSize + 7) / 8 - 1;
         }
         else
         {
@@ -63,7 +58,7 @@ public class RSAEngine
      * For RSA this is always one byte less than the key size on
      * decryption, and the same length as the key size on encryption.
      *
-     * @return maximum size for an input block.
+     * @return maximum size for an output block.
      */
     public int getOutputBlockSize()
     {
@@ -71,11 +66,11 @@ public class RSAEngine
 
         if (forEncryption)
         {
-            return ((bitSize - 1) + 7) / 8;
+            return (bitSize + 7) / 8;
         }
         else
         {
-            return (bitSize - 7) / 8;
+            return (bitSize + 7) / 8 - 1;
         }
     }