PrivAESW3DESKeyExt Class Reference
Encryption module using AES but using non standard key extension. More...
#include <auth_priv.h>
Inheritance diagram for PrivAESW3DESKeyExt:
Collaboration diagram for PrivAESW3DESKeyExt:
Public Member Functions | |
| PrivAESW3DESKeyExt (const int aes_type_) | |
| int | extend_short_key (const unsigned char *password, const unsigned int password_len, const unsigned char *engine_id, const unsigned int engine_id_len, unsigned char *key, unsigned int *key_len, const unsigned int max_key_len, Auth *auth) |
| Extend a localized key that is too short. More... | |
| const char * | get_id_string () const |
| Get the unique identifier string of the privacy protocol. More... | |
| int | get_id () const |
| Get the uniqhe id of the privacy protocol. More... | |
 Public Member Functions inherited from PrivAES | |
| PrivAES (const int aes_type_) | |
| int | encrypt (const unsigned char *key, const unsigned int key_len, const unsigned char *buffer, const unsigned int buffer_len, unsigned char *out_buffer, unsigned int *out_buffer_len, unsigned char *privacy_params, unsigned int *privacy_params_len, const unsigned long engine_boots, const unsigned long engine_time) |
| Encrypt the buffer with the given key. More... | |
| int | decrypt (const unsigned char *key, const unsigned int key_len, const unsigned char *buffer, const unsigned int buffer_len, unsigned char *out_buffer, unsigned int *out_buffer_len, const unsigned char *privacy_params, const unsigned int privacy_params_len, const unsigned long engine_boots, const unsigned long engine_time) |
| Decrypt the buffer with the given key. More... | |
| int | get_priv_params_len () const |
| Get the maximum length that is needed for the msgPrivacyParameters field. More... | |
| int | get_min_key_len () const |
| Get the minimum key length needed for encryption and decryption. More... | |
| void | fix_key_len (unsigned int &key_len) const |
| Decrease a too long length to the right value. More... | |
| Public Member Functions inherited from Priv | |
| virtual | ~Priv () |
| virtual void | set_salt (pp_uint64 *new_salt) |
| Set the pointer to the salt that should be used. More... | |
Static Public Member Functions | |
| static int | map_aes_type (const int t) |
Private Attributes | |
| int | own_aes_type |
Additional Inherited Members | |
| Protected Attributes inherited from Priv | |
| pp_uint64 * | salt |
Detailed Description
Encryption module using AES but using non standard key extension.
- Note
- This class adds compatibility with some devices that illegally use the 3DES key extension algorithm with AES privacy.
- See also
- PrivAES
Definition at line 771 of file auth_priv.h.
Constructor & Destructor Documentation
◆ PrivAESW3DESKeyExt()
| PrivAESW3DESKeyExt::PrivAESW3DESKeyExt | ( | const int | aes_type_ | ) |
Member Function Documentation
◆ extend_short_key()
|
virtual |
Extend a localized key that is too short.
Some privacy protocols require a key that is longer than the key generated by the pasword to key algorithm of the authentication protocol. This function extends a short key to the required length.
- Parameters
-
password - the password password_len - the length of the password engine_id - pointer to snmpEngineID engine_id_len - length of snmpEngineID key - pointer to the short key that was generated using Auth::password_to_key() function key_len - IN: length of the short key OUT: length of the extended key max_key_len - Length of the key buffer auth - Pointer of the authentication protocol that should be used
- Returns
- SNMPv3_USM_OK on success
Reimplemented from PrivAES.
◆ get_id()
|
inlinevirtual |
Get the uniqhe id of the privacy protocol.
Reimplemented from PrivAES.
Definition at line 787 of file auth_priv.h.
◆ get_id_string()
|
virtual |
Get the unique identifier string of the privacy protocol.
Reimplemented from PrivAES.
◆ map_aes_type()
|
static |
Member Data Documentation
◆ own_aes_type
|
private |
Definition at line 792 of file auth_priv.h.
The documentation for this class was generated from the following file:
