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

base/crypto/symmetric_key_win.cc

Index: base/crypto/symmetric_key_win.cc
diff --git a/base/crypto/symmetric_key_win.cc b/base/crypto/symmetric_key_win.cc
index 0a1c234a4b585249803949802dd47863961a6367..d36dd1f769fbe4251a7adfe84b029c060af4ee90 100644
--- a/base/crypto/symmetric_key_win.cc
+++ b/base/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);