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

crypto/symmetric_key.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CRYPTO_SYMMETRIC_KEY_H_
 #define CRYPTO_SYMMETRIC_KEY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 15 matching lines @@
  public:
   // Defines the algorithm that a key will be used with. See also
   // classs Encrptor.
   enum Algorithm {
     AES,
     HMAC_SHA1,
   };
 
   virtual ~SymmetricKey();
 
+  // Generates cryptographically strong random bytes. Returns true on success.
+  static bool GenerateRandomBytes(size_t size_in_bits, uint8* out);

[wtc, 2011/05/16 23:23:29]

Please use the recently-added base::RandBytes function in
"base/rand_util.h".

[Denis Lagno, 2011/05/17 22:15:08]

Done.

+
   // Generates a random key suitable to be used with |algorithm| and of
   // |key_size_in_bits| bits.
   // The caller is responsible for deleting the returned SymmetricKey.
   static SymmetricKey* GenerateRandomKey(Algorithm algorithm,
                                          size_t key_size_in_bits);
 
   // Derives a key from the supplied password and salt using PBKDF2, suitable
   // for use with specified |algorithm|. Note |algorithm| is not the algorithm
   // used to derive the key from the password. The caller is responsible for
   // deleting the returned SymmetricKey.
@@ skipping 49 matching lines @@
   // fails with NTE_BAD_KEY/NTE_BAD_LEN
   std::string raw_key_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(SymmetricKey);
 };
 
 }  // namespace crypto
 
 #endif  // CRYPTO_SYMMETRIC_KEY_H_