Anywhere where we use MemoryRegion::begin to get access to the raw pointer

representation (rather than in an interator context), instead use &buf[0],
which works for both MemoryRegion and std::vector

1 files changed, 1 insertions, 1 deletions

diff --git a/src/kdf/mgf1/mgf1.cpp b/src/kdf/mgf1/mgf1.cpp
index 340e87a7c..509a411fa 100644
--- a/src/kdf/mgf1/mgf1.cpp
+++ b/src/kdf/mgf1/mgf1.cpp
@@ -30,7 +30,7 @@ void MGF1::mask(const byte in[], u32bit in_len, byte out[],
       SecureVector<byte> buffer = hash->final();
 
       u32bit xored = std::min(buffer.size(), out_len);
-      xor_buf(out, buffer.begin(), xored);
+      xor_buf(out, &buffer[0], xored);
       out += xored;
       out_len -= xored;