text: // Copyright 2015 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_NSS_KEY_UTIL_H_
  #define CRYPTO_NSS_KEY_UTIL_H_
  
  #include <secoidt.h>
  #include <stdint.h>
  
  #include <vector>
  
  #include "base/containers/span.h"
  #include "build/build_config.h"
  #include "crypto/crypto_export.h"
  #include "crypto/scoped_nss_types.h"
  
  typedef struct PK11SlotInfoStr PK11SlotInfo;
  
  namespace crypto {
  
  // Generates a new RSA key pair of size |num_bits| in |slot|. Returns true on
  // success and false on failure. If |permanent| is true, the resulting key is
  // permanent and is not exportable in plaintext form.
  CRYPTO_EXPORT bool GenerateRSAKeyPairNSS(
      PK11SlotInfo* slot,
      uint16_t num_bits,
      bool permanent,
      ScopedSECKEYPublicKey* out_public_key,
      ScopedSECKEYPrivateKey* out_private_key);
  
  // Generates a new EC key pair with curve |named_curve| in |slot|. Returns true
  // on success and false on failure. If |permanent| is true, the resulting key is
  // permanent and is not exportable in plaintext form.
  CRYPTO_EXPORT bool GenerateECKeyPairNSS(
      PK11SlotInfo* slot,
      const SECOidTag named_curve,
      bool permanent,
      ScopedSECKEYPublicKey* out_public_key,
      ScopedSECKEYPrivateKey* out_private_key);
  
  // Imports a private key from |input| into |slot|. |input| is interpreted as a
  // DER-encoded PrivateKeyInfo block from PKCS #8. Returns nullptr on error. If
  // |permanent| is true, the resulting key is permanent and is not exportable in
  // plaintext form.
  CRYPTO_EXPORT ScopedSECKEYPrivateKey
  ImportNSSKeyFromPrivateKeyInfo(PK11SlotInfo* slot,
                                 const std::vector<uint8_t>& input,
                                 bool permanent);
  
  // Decodes |input| as a DER-encoded X.509 SubjectPublicKeyInfo and searches for
  // the private key half in the key database. Returns the private key on success
  // or nullptr on error.
  CRYPTO_EXPORT ScopedSECKEYPrivateKey
  FindNSSKeyFromPublicKeyInfo(base::span<const uint8_t> input);
  
  // Decodes |input| as a DER-encoded X.509 SubjectPublicKeyInfo and searches for
  // the private key half in the slot specified by |slot|. Returns the private key
  // on success or nullptr on error.
  CRYPTO_EXPORT ScopedSECKEYPrivateKey
  FindNSSKeyFromPublicKeyInfoInSlot(base::span<const uint8_t> input,
                                    PK11SlotInfo* slot);
  
  }  // namespace crypto
  
  #endif  // CRYPTO_NSS_KEY_UTIL_H_
  