3 files changed, 18 insertions, 10 deletions
diff --git a/src/Makefile b/src/Makefile
index 3b3be02..3c0edba 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -34,7 +34,7 @@
 
 TARGET=$(shell uname -s)
 CC = gcc
-CCFLAGS = -g -O2
+CCFLAGS = -g -O2 # -DANYTUN_02_COMPAT 
 LD = gcc
 LDFLAGS = -g -Wall -O2 -lgcrypt -lgpg-error -lgmp
 
diff --git a/src/cipher.c b/src/cipher.c
index d400ca8..b61dd22 100644
--- a/src/cipher.c
+++ b/src/cipher.c
@@ -239,10 +239,13 @@ buffer_t cipher_aesctr_calc_ctr(cipher_t* c, key_derivation_t* kd, seq_nr_t seq_
   mpz_mul_2exp(ctr, ctr, 16);
 
   result.buf_ = mpz_export(NULL, (size_t*)&result.length_, 1, 1, 0, 0, ctr);
-/*   if(faked_msb) { */
-/*     c->salt_.buf_[0] = 0; */
-/*     result.buf_[0] = 0; */
-/*   } */
+
+#ifndef ANYTUN_02_COMPAT
+  if(faked_msb) {
+    c->salt_.buf_[0] = 0;
+    result.buf_[0] = 0;
+  }
+#endif
 
   mpz_clear(ctr);
   mpz_clear(sid_mux);
diff --git a/src/key_derivation.c b/src/key_derivation.c
index e53d7f6..c14db40 100644
--- a/src/key_derivation.c
+++ b/src/key_derivation.c
@@ -229,8 +229,11 @@ int key_derivation_aesctr_calc_ctr(key_derivation_t* kd, key_store_t* result, sa
   mpz_import(ctr, kd->master_salt_.length_, 1, 1, 0, 0, kd->master_salt_.buf_);
 
   mpz_set_ui(key_id, label);
-/*  mpz_mul_2exp(key_id, key_id, (sizeof(r) * 8)); */ 
+#ifndef ANYTUN_02_COMPAT
+  mpz_mul_2exp(key_id, key_id, (sizeof(r) * 8));
+#else
   mpz_mul_2exp(key_id, key_id, 48);
+#endif
   mpz_add_ui(key_id, key_id, r);
 
   mpz_xor(ctr, ctr, key_id);
@@ -240,10 +243,12 @@ int key_derivation_aesctr_calc_ctr(key_derivation_t* kd, key_store_t* result, sa
     free(result->key_.buf_);
   result->key_.buf_ = mpz_export(NULL, (size_t*)&(result->key_.length_), 1, 1, 0, 0, ctr);
 
-/*   if(faked_msb) { */
-/*     kd->master_salt_.buf_[0] = 0; */
-/*     result->key_.buf_[0] = 0; */
-/*   } */
+#ifndef ANYTUN_02_COMPAT
+  if(faked_msb) {
+    kd->master_salt_.buf_[0] = 0;
+    result->key_.buf_[0] = 0;
+  }
+#endif
 
   mpz_clear(ctr);
   mpz_clear(key_id);