Private API for extensions like ssh-client that need access to TCP.

crypto/symmetric_key_win.cc

Index: crypto/symmetric_key_win.cc
diff --git a/crypto/symmetric_key_win.cc b/crypto/symmetric_key_win.cc
index d2034e0304c7bc163ef67704aa90a6a851fae261..1168f312c0cb216e2f6695cee3978bb125af2fd3 100644
--- a/crypto/symmetric_key_win.cc
+++ b/crypto/symmetric_key_win.cc
@@ -312,6 +312,26 @@ SymmetricKey::~SymmetricKey() {
 }
 
 // static
+bool SymmetricKey::GenerateRandomBytes(size_t num_bytes, uint8* out) {
+  if (num_bytes == 0)
+    return true;
+  if (out == NULL)
+    return false;
+
+  ScopedHCRYPTPROV provider;
+  // See comment in GenerateAESKey as to why NULL is acceptable for the
+  // container name.
+  if (!CryptAcquireContext(
+      provider.receive(), NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+    return false;
+  }
+  if (CryptGenRandom(provider, num_bytes, out))
+    return true;
+  else
+    return false;
+}
+
+// static
 SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
                                               size_t key_size_in_bits) {
   DCHECK_GE(key_size_in_bits, 8);