FIX: add carry bit to correct half-pad

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/stream/ctr/ctr.cpp b/src/lib/stream/ctr/ctr.cpp
index 21e62fb4b..c63bdebdc 100644
--- a/src/lib/stream/ctr/ctr.cpp
+++ b/src/lib/stream/ctr/ctr.cpp
@@ -148,7 +148,7 @@ void CTR_BE::add_counter(const uint64_t counter)
          uint64_t b0 = load_be<uint64_t>(&m_counter[off], 0);
          uint64_t b1 = load_be<uint64_t>(&m_counter[off], 1);
          b1 += counter;
-         b1 += (b1 < counter) ? 1 : 0; // carry
+         b0 += (b1 < counter) ? 1 : 0; // carry
          store_be(b0, &m_counter[off]);
          store_be(b1, &m_counter[off+8]);
          off += BS;