source: svn/newcon3bcm2_21bu/nexus/lib/dtcp_ip/include/b_dtcp_constants.h

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38 *
39 * $brcm_Workfile: b_dtcp_constants.h $
40 * $brcm_Revision: 3 $
41 * $brcm_Date: 7/1/09 2:57p $
42 *
43 * Module Description:
44 *
45 * Revision History:
46 *
47 * $brcm_Log: /nexus/lib/dtcp_ip/include/b_dtcp_constants.h $
48 *
49 * 3   7/1/09 2:57p leisun
50 * PR 55693: change exchange key timer to 2 hours
51 *
52 * 2   6/30/09 10:37p leisun
53 * PR 55693: Added exchange key expiration timer
54 *
55 * 1   6/5/09 4:07p leisun
56 * PR 55693: checking in DTCP-IP lib
57*
58* $Source:$
59* $Revision:$
60* $Date:$
61* $Author:$
62*
63* Description:
64*    Top-level DTCP constants
65*
66* Revision History:
67* $Revision:$ $Date:$ $Author:$ Initial creation.
68*
69*********************************************************************************************/
70
71#ifndef __DTCP_CONSTANTS_H__
72#define __DTCP_CONSTANTS_H__
73
74/*! \file
75 *  \brief Defines constant values used throughout the DTCP baseline functions.
76 */
77
78#define DTCP_DEVICE_KEY_SIZE                                             8       /*!< Size of device key in bytes */
79#define DTCP_BASELINE_FULL_CERT_SIZE                                     88      /*!< Size of baseline full-auth device certificate */
80#define DTCP_EXTENDED_FULL_CERT_SIZE                                     132 /*!< size of extended full-auth  device certificate */
81#define DTCP_RESTRICTED_CERT_SIZE                                        48  /*!< size of restricted auth device certificate */
82
83#define DTCP_DEVICE_ID_SIZE                                              5       /*!< size of device id */
84#define DTCP_PUBLIC_KEY_SIZE                                             40  /*!< size of public key */
85#define DTCP_PRIVATE_KEY_SIZE                                                    20  /*!< private key size */
86#define DTCP_SIGNATURE_SIZE                                                              40  /*!< EC-DSA signature size */
87
88/* AKE data sizes */
89
90#define DTCP_FULL_AUTH_NONCE_SIZE                                                16 /*!< Size of the random nonce for full auth */
91#define DTCP_RESTRICTED_AUTH_NONCE_SIZE                  8  /*!< Size of the random nonce for restricted auth */
92#define DTCP_RESTRICTED_AUTH_RESPONSE_SIZE               8  /*!< Size of the response for restricted auth */
93#define DTCP_EC_DH_FIRST_PHASE_VALUE_SIZE                40 /*!< Size of the Diffie-Hellman first phase value */
94#define DTCP_DH_FIRST_PHASE_SECRET_SIZE                  20 /*!< Size of the Diffie-Hellman first phase secret */
95#define DTCP_AUTH_KEY_SIZE                               12 /*!< Size of the authentication key */
96#define DTCP_RESTRICTED_AUTH_KEY_SIZE                    8  /*!< Size of the restrcited auth authentication key */
97#define DTCP_EXCHANGE_KEY_SIZE                           12 /*!< Size of the exchange key */
98#define DTCP_CONTENT_KEY_NONCE_SIZE                      8  /*!< Size of the nonce for computing the content key */
99
100#define DTCP_SRM_VERSION_NUMBER_SIZE                     2      /*!< Size of the SRM version number */
101#define DTCP_SRM_GENERATION_SIZE                                                 1  /*!< size of SRM generation in challenge response */
102#define DTCP_SRM_HEADER_SIZE                                                     4      /*!< size of SRM header.*/
103#define DTCP_SRM_FIRST_GEN_MAX_SIZE                                             128     /*!< first generation SRM max size */
104#define DTCP_SRM_SECOND_GEN_MAX_SIZE                                    1024    /*!< Second generation SRM max size */
105#define DTCP_EXCHANGE_KEY_LABEL_SIZE                     1  /*!< Size of the exchange key label */
106#define DTCP_CONTENT_KEY_CONSTANT_SIZE                   12 /*!< Size of the content key constant */
107#define DTCP_IP_CONTENT_KEY_SIZE                         16 /*!< Size of the content key for IP */
108
109/* Sink capbilities for RESP2 */
110#define DTCP_DEVICE_CAPABILITY_SIZE                      4  /*!< Size of the device capability for IP */
111
112#define DTCP_FULL_AUTH_CHALLENGE_SIZE                   (DTCP_FULL_AUTH_NONCE_SIZE + DTCP_BASELINE_FULL_CERT_SIZE) /*!< Size of a full auth challenge */
113
114#define DTCP_FULL_AUTH_RESPONSE_SIZE                    (DTCP_EC_DH_FIRST_PHASE_VALUE_SIZE + \
115                                                                                                                 DTCP_SRM_VERSION_NUMBER_SIZE + \
116                                                                                                                 DTCP_SRM_GENERATION_SIZE + \
117                                                                                                                 DTCP_SIGNATURE_SIZE)                           /*!< Size of a full auth response */
118#define DTCP_RESTRICTED_AUTH_CHALLENGE_SIZE             (DTCP_RESTRICTED_AUTH_NONCE_SIZE + 2 )  /*!< Size of a restricted auth challenge ( nonce + 12 bits SRM version + 4 bits padding) */
119#define DTCP_RESTRICTED_AUTH_RESPONSE_SIZE                              8
120#define DTCP_ENH_RESTRICTED_AUTH_CHALLENGE_SINK_SIZE    (DTCP_RESTRICTED_CERT_SIZE + DTCP_RESTRICTED_AUTH_NONCE_SIZE)
121
122#define DTCP_FULL_AUTH_RESPONSE2_SIZE                               (DTCP_EC_DH_FIRST_PHASE_VALUE_SIZE + \
123                                                                                                                 DTCP_SRM_VERSION_NUMBER_SIZE + 1 + \
124                                                                                                                 DTCP_DEVICE_CAPABILITY_SIZE + \
125                                                                                                                 DTCP_DEVICE_ID_SIZE + \
126                                                                                                                 DTCP_SIGNATURE_SIZE)                                           /*!< Size of a enhanced restricted auth challenge>*/
127#define DTCP_EXTENDED_FULL_AUTH_CHALLENGE_SIZE                  (DTCP_FULL_AUTH_NONCE_SIZE + DTCP_EXTENDED_FULL_CERT_SIZE)        /*!<size of extended full-auth challenge*/
128
129#define DTCP_CAPABILITY_REQ_SIZE                        (4)                                                                             /*!< capability request command */
130
131#define DTCP_EXCHANGE_KEY_CMD_DATA_SIZE                 (DTCP_EXCHANGE_KEY_SIZE + 2)            /*!< Size of a exchange key command( lable + cipher_algorithm + key ) */
132#define DTCP_CONTENT_KEY_REQUEST_SIZE                   (DTCP_EXCHANGE_KEY_LABEL_SIZE + 3 + DTCP_CONTENT_KEY_NONCE_SIZE) /*!< Size of a content key request */
133
134
135#define DTCP_SRM_FIRST_GEN_MAX_SIZE                     128     /*!< Maximum size of a first generation SRM */
136#define DTCP_SRM_SECOND_GEN_MAX_SIZE                    1024    /*!< Maximum size of a second generation SRM */
137#define DTCP_SRM_MAX_SIZE                               DTCP_SRM_SECOND_GEN_MAX_SIZE                            /*!< Maximum SRM size*/
138#define DTCP_SRM_CRL_MIN_SIZE                           (DTCP_SRM_CRL_LENGTH_SIZE + DTCP_SIGNATURE_SIZE) /*!< Minimum SRM CRL size*/
139/*!< Size of the full auth response buffer that is signed */
140#define DTCP_FULL_AUTH_RESPONSE_SIGN_BUFFER_SIZE    (DTCP_FULL_AUTH_NONCE_SIZE + \
141                                                     DTCP_EC_DH_FIRST_PHASE_VALUE_SIZE + \
142                                                     DTCP_SRM_VERSION_NUMBER_SIZE + \
143                                                     1)
144/*!< Size of the full auth response buffer that is signed */
145#define DTCP_FULL_AUTH_RESPONSE2_SIGN_BUFFER_SIZE   (DTCP_FULL_AUTH_RESPONSE_SIGN_BUFFER_SIZE + \
146                                                     DTCP_DEVICE_CAPABILITY_SIZE + \
147                                                     DTCP_DEVICE_ID_SIZE)
148
149#define DTCP_CONTENT_PACKET_HEADER_SIZE                 14 /*!< Size of a protected content packet header */
150#define DTCP_AES_KEY_SIZE                               16 /*!< Size of an AES key */
151#define DTCP_AES_IV_SIZE                                16 /*!< Size of an AES IV */
152#define DTCP_AES_BLOCK_SIZE                             16 /*!< Size of an AES block */
153#define DTCP_MAXIMUM_PROTECTED_PACKET_SIZE              134217728   /*!< Maximum payload size of a protected content packet */
154#define DTCP_SINK_COUNT_LIMIT                           32      /*!< Sink count limit*/
155
156/* These should be in ECC.h */
157
158#define ECC_PRIME_NUMBER_SIZE                                   20  /*!< Size of the ECC prime number */
159#define ECC_COEFFICIENT_SIZE                                    20  /*!< Size of the ECC coefficient*/
160#define ECC_BASEPOINT_SIZE                                      40  /*!< Size of the ECC basepoint */
161#define ECC_BASEPOINT_ORDER_SIZE                                20  /*!< Size of the ECC basepoint order */
162
163
164#define KX_EXPIRE                                                                       7200/*!< 2*60*60 = 7200 seconds = 2 hours */
165
166/* Include protocol specific constsnts */
167#include "b_dtcp_ip_constants.h"
168
169#endif /* __DTCP_CONSTANTS_H__ */
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