corrected length calculation

dghgit · dghgit · commit 8bfc24fdb920 · 2024-11-04T14:26:09.000+11:00
diff --git a/core/src/main/java/org/bouncycastle/pqc/crypto/util/PrivateKeyFactory.java b/core/src/main/java/org/bouncycastle/pqc/crypto/util/PrivateKeyFactory.java
@@ -502,11 +502,11 @@ private static int readLen(ByteArrayInputStream bIn)
         int length = bIn.read();
         if (length != (length & 0x7f))
         {
-            int count = length;
+            int count = length & 0x7f;
             length = 0;
             while (count-- != 0)
             {
-                length = length << 8 + bIn.read();
+                length = (length << 8) + bIn.read();
             }
         }
 

Original file line number	Diff line number	Diff line change
`@@ -502,11 +502,11 @@ private static int readLen(ByteArrayInputStream bIn)`
`502`	`502`	`int length = bIn.read();`
`503`	`503`	`if (length != (length & 0x7f))`
`504`	`504`	`{`
`505`		`- int count = length;`
	`505`	`+ int count = length & 0x7f;`
`506`	`506`	`length = 0;`
`507`	`507`	`while (count-- != 0)`
`508`	`508`	`{`
`509`		`- length = length << 8 + bIn.read();`
	`509`	`+ length = (length << 8) + bIn.read();`
`510`	`510`	`}`
`511`	`511`	`}`
`512`	`512`