Fix IV size in AesCipher

golf1052 · golf1052 · commit 41841836c95e · 2021-02-11T19:05:31.000-08:00
diff --git a/libsignal-service-dotnet/contacts/crypto/AesCipher.cs b/libsignal-service-dotnet/contacts/crypto/AesCipher.cs
@@ -30,7 +30,7 @@ internal static AesEncryptedResult Encrypt(byte[] key, byte[]? aad, byte[] reque
         {
             try
             {
-                byte[] iv = Util.GetSecretBytes(32);
+                byte[] iv = Util.GetSecretBytes(12);
                 var cipher = new GcmBlockCipher(new AesEngine());
                 cipher.Init(true, new AeadParameters(new KeyParameter(key), TAG_LENGTH_BITS, iv));
                 if (aad != null)

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ internal static AesEncryptedResult Encrypt(byte[] key, byte[]? aad, byte[] reque`
`30`	`30`	`{`
`31`	`31`	`try`
`32`	`32`	`{`
`33`		`- byte[] iv = Util.GetSecretBytes(32);`
	`33`	`+ byte[] iv = Util.GetSecretBytes(12);`
`34`	`34`	`var cipher = new GcmBlockCipher(new AesEngine());`
`35`	`35`	`cipher.Init(true, new AeadParameters(new KeyParameter(key), TAG_LENGTH_BITS, iv));`
`36`	`36`	`if (aad != null)`