Botan  2.12.1
Crypto and TLS for C++11
Functions
ffi_hotp.cpp File Reference
#include <botan/ffi.h>
#include <botan/internal/ffi_util.h>

Go to the source code of this file.

Functions

int botan_hotp_check (botan_hotp_t hotp, uint64_t *next_hotp_counter, uint32_t hotp_code, uint64_t hotp_counter, size_t resync_range)
 
int botan_hotp_destroy (botan_hotp_t hotp)
 
int botan_hotp_generate (botan_hotp_t hotp, uint32_t *hotp_code, uint64_t hotp_counter)
 
int botan_hotp_init (botan_hotp_t *hotp, const uint8_t key[], size_t key_len, const char *hash_algo, size_t digits)
 

Function Documentation

◆ botan_hotp_check()

int botan_hotp_check ( botan_hotp_t  hotp,
uint64_t *  next_hotp_counter,
uint32_t  hotp_code,
uint64_t  hotp_counter,
size_t  resync_range 
)

Verify a HOTP code

Definition at line 76 of file ffi_hotp.cpp.

References BOTAN_FFI_DO, BOTAN_FFI_ERROR_NOT_IMPLEMENTED, BOTAN_FFI_INVALID_VERIFIER, BOTAN_FFI_SUCCESS, BOTAN_UNUSED, and Botan::HOTP::verify_hotp().

81  {
82 #if defined(BOTAN_HAS_HOTP)
83  return BOTAN_FFI_DO(Botan::HOTP, hotp, h, {
84 
85  auto resp = h.verify_hotp(hotp_code, hotp_counter, resync_range);
86 
87  if(next_hotp_counter)
88  *next_hotp_counter = resp.second;
89 
90  return (resp.first == true) ? BOTAN_FFI_SUCCESS : BOTAN_FFI_INVALID_VERIFIER;
91  });
92 
93 #else
94  BOTAN_UNUSED(hotp, next_hotp_counter, hotp_code, hotp_counter, resync_range);
96 #endif
97  }
#define BOTAN_UNUSED(...)
Definition: assert.h:142
std::pair< bool, uint64_t > verify_hotp(uint32_t otp, uint64_t starting_counter, size_t resync_range=0)
Definition: hotp.cpp:52
#define BOTAN_FFI_DO(T, obj, param, block)
Definition: ffi_util.h:92

◆ botan_hotp_destroy()

int botan_hotp_destroy ( botan_hotp_t  hotp)

Destroy a HOTP instance

Returns
0 if success, error if invalid object handle

Definition at line 48 of file ffi_hotp.cpp.

References BOTAN_FFI_CHECKED_DELETE, BOTAN_FFI_ERROR_NOT_IMPLEMENTED, and BOTAN_UNUSED.

49  {
50 #if defined(BOTAN_HAS_HOTP)
51  return BOTAN_FFI_CHECKED_DELETE(hotp);
52 #else
53  BOTAN_UNUSED(hotp);
55 #endif
56  }
#define BOTAN_FFI_CHECKED_DELETE(o)
Definition: ffi_util.h:120
#define BOTAN_UNUSED(...)
Definition: assert.h:142

◆ botan_hotp_generate()

int botan_hotp_generate ( botan_hotp_t  hotp,
uint32_t *  hotp_code,
uint64_t  hotp_counter 
)

Generate a HOTP code for the provided counter

Definition at line 58 of file ffi_hotp.cpp.

References BOTAN_FFI_DO, BOTAN_FFI_ERROR_NOT_IMPLEMENTED, BOTAN_FFI_ERROR_NULL_POINTER, BOTAN_UNUSED, and Botan::HOTP::generate_hotp().

61  {
62 #if defined(BOTAN_HAS_HOTP)
63  if(hotp == nullptr || hotp_code == nullptr)
65 
66  return BOTAN_FFI_DO(Botan::HOTP, hotp, h, {
67  *hotp_code = h.generate_hotp(hotp_counter);
68  });
69 
70 #else
71  BOTAN_UNUSED(hotp, hotp_code, hotp_counter);
73 #endif
74  }
#define BOTAN_UNUSED(...)
Definition: assert.h:142
#define BOTAN_FFI_DO(T, obj, param, block)
Definition: ffi_util.h:92
uint32_t generate_hotp(uint64_t counter)
Definition: hotp.cpp:42

◆ botan_hotp_init()

int botan_hotp_init ( botan_hotp_t hotp,
const uint8_t  key[],
size_t  key_len,
const char *  hash_algo,
size_t  digits 
)

Initialize a HOTP instance

Definition at line 24 of file ffi_hotp.cpp.

References BOTAN_FFI_ERROR_NOT_IMPLEMENTED, BOTAN_FFI_ERROR_NULL_POINTER, BOTAN_FFI_SUCCESS, BOTAN_UNUSED, Botan_FFI::ffi_guard_thunk(), and hash_algo.

28  {
29  if(hotp == nullptr || key == nullptr || hash_algo == nullptr)
31 
32  *hotp = nullptr;
33 
34 #if defined(BOTAN_HAS_HOTP)
35  return ffi_guard_thunk(__func__, [=]() -> int {
36 
37  *hotp = new botan_hotp_struct(
38  new Botan::HOTP(key, key_len, hash_algo, digits));
39 
40  return BOTAN_FFI_SUCCESS;
41  });
42 #else
43  BOTAN_UNUSED(hotp, key, key_len, hash_algo, digits);
45 #endif
46  }
int ffi_guard_thunk(const char *func_name, std::function< int()> thunk)
Definition: ffi.cpp:86
#define BOTAN_UNUSED(...)
Definition: assert.h:142
AlgorithmIdentifier hash_algo
Definition: x509_obj.cpp:22