Delegate random number generation to crypto provider (fixes #418)

1 files changed, 24 insertions, 0 deletions

diff --git a/libqpdf/CryptoRandomDataProvider.cc b/libqpdf/CryptoRandomDataProvider.cc
new file mode 100644
index 00000000..84c72fce
--- /dev/null
+++ b/libqpdf/CryptoRandomDataProvider.cc
@@ -0,0 +1,24 @@
+#include <qpdf/CryptoRandomDataProvider.hh>
+#include <qpdf/QPDFCryptoProvider.hh>
+
+CryptoRandomDataProvider::CryptoRandomDataProvider()
+{
+}
+
+CryptoRandomDataProvider::~CryptoRandomDataProvider()
+{
+}
+
+void
+CryptoRandomDataProvider::provideRandomData(unsigned char* data, size_t len)
+{
+    auto crypto = QPDFCryptoProvider::getImpl();
+    crypto->provideRandomData(data, len);
+}
+
+RandomDataProvider*
+CryptoRandomDataProvider::getInstance()
+{
+    static CryptoRandomDataProvider instance;
+    return &instance;
+}