key-params.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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21 
23 
24 namespace ndn {
25 
26 static const uint32_t MIN_RSA_KEY_SIZE = 2048;
27 static const uint32_t DEFAULT_RSA_KEY_SIZE = 2048;
28 static const uint32_t EC_KEY_SIZES[] = {224, 256, 384, 521};
29 static const uint32_t DEFAULT_EC_KEY_SIZE = 256;
30 static const uint32_t AES_KEY_SIZES[] = {128, 192, 256};
31 static const uint32_t DEFAULT_AES_KEY_SIZE = 128;
32 
34  : m_keyType(keyType)
35  , m_keyIdType(keyIdType)
36 {
37  BOOST_ASSERT(keyIdType != KeyIdType::USER_SPECIFIED);
38 }
39 
41  : m_keyType(keyType)
42  , m_keyIdType(KeyIdType::USER_SPECIFIED)
43  , m_keyId(keyId)
44 {
45  BOOST_ASSERT(!keyId.empty());
46 }
47 
48 KeyParams::~KeyParams() = default;
49 
50 namespace detail {
51 
52 uint32_t
53 RsaKeyParamsInfo::checkKeySize(uint32_t size)
54 {
55  if (size < MIN_RSA_KEY_SIZE)
56  NDN_THROW(KeyParams::Error("Unsupported RSA key size " + to_string(size)));
57  return size;
58 }
59 
60 uint32_t
61 RsaKeyParamsInfo::getDefaultSize()
62 {
63  return DEFAULT_RSA_KEY_SIZE;
64 }
65 
66 uint32_t
67 EcKeyParamsInfo::checkKeySize(uint32_t size)
68 {
69  for (size_t i = 0; i < (sizeof(EC_KEY_SIZES) / sizeof(EC_KEY_SIZES[0])); i++) {
70  if (EC_KEY_SIZES[i] == size)
71  return size;
72  }
73  NDN_THROW(KeyParams::Error("Unsupported EC key size " + to_string(size)));
74 }
75 
76 uint32_t
77 EcKeyParamsInfo::getDefaultSize()
78 {
79  return DEFAULT_EC_KEY_SIZE;
80 }
81 
82 uint32_t
83 AesKeyParamsInfo::checkKeySize(uint32_t size)
84 {
85  for (size_t i = 0; i < (sizeof(AES_KEY_SIZES) / sizeof(AES_KEY_SIZES[0])); i++) {
86  if (AES_KEY_SIZES[i] == size)
87  return size;
88  }
89  NDN_THROW(KeyParams::Error("Unsupported AES key size " + to_string(size)));
90 }
91 
92 uint32_t
93 AesKeyParamsInfo::getDefaultSize()
94 {
95  return DEFAULT_AES_KEY_SIZE;
96 }
97 
98 } // namespace detail
99 } // namespace ndn
Definition: data.cpp:26
static const uint32_t DEFAULT_AES_KEY_SIZE
Definition: key-params.cpp:31
static const uint32_t DEFAULT_RSA_KEY_SIZE
Definition: key-params.cpp:27
static const uint32_t DEFAULT_EC_KEY_SIZE
Definition: key-params.cpp:29
KeyIdType
The type of KeyId component in a key name.
virtual ~KeyParams()
static const uint32_t AES_KEY_SIZES[]
Definition: key-params.cpp:30
#define NDN_THROW(e)
Definition: exception.hpp:61
KeyType
The type of a cryptographic key.
static const uint32_t MIN_RSA_KEY_SIZE
Definition: key-params.cpp:26
KeyParams(KeyType keyType, KeyIdType keyIdType)
Create a key generation parameter.
Definition: key-params.cpp:33
Represents a name component.
User-specified key ID.
std::string to_string(const V &v)
Definition: backports.hpp:67
static const uint32_t EC_KEY_SIZES[]
Definition: key-params.cpp:28