1 /*-
2  * Copyright (C) 2001-2003 by NBMK Encryption Technologies.
3  * All rights reserved.
4  *
5  * NBMK Encryption Technologies provides no support of any kind for
6  * this software.  Questions or concerns about it may be addressed to
7  * the members of the relevant open-source community at
8  * <tech-crypto@netbsd.org>.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions are
12  * met:
13  *
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  *
17  * 2. Redistributions in binary form must reproduce the above
18  *    copyright notice, this list of conditions and the following
19  *    disclaimer in the documentation and/or other materials provided
20  *    with the distribution.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 /*****************************************************************************
36  * @(#) n8_pk_common.h 1.17@(#)
37  *****************************************************************************/
38 
39 /*****************************************************************************/
40 /** @file n8_pk_common.h
41  *  @brief #defs and typedefs used in accessing the Public Key Handler
42  *
43  * #defs and typedefs used in accessing the Public Key Handler.
44  *
45  *****************************************************************************/
46 
47 /*****************************************************************************
48  * Revision history:
49  * 05/16/03 brr   Added PK_DH_CP_Byte_Length.
50  * 05/15/03 brr   Added masks for command & bus errors.
51  * 02/20/02 brr   Removed references to the queue structure.
52  * 07/30/01 bac   Changed word size macros to take a queue control pointer.
53  * 05/30/01 bac   Changed the macro BYTES_TO_PKDIGITS to correctly compute the
54  *                number of digits by rounding up.
55  * 05/22/01 dws   Reversed the order of data_addr_ms and data_addr_ls in
56  *                PK_LDST_CMD_BLOCK_t.
57  * 04/16/01 jke   moved status and return types to n8_enqueue_common.h
58  *                and genericized for use in EA and PK
59  * 04/05/01 bac   Added BYTES_TO_PKDIGITS and PKDIGITS_TO_BYTES
60  * 03/30/01 dws   Removed the typdef for PK_BIGNUM_DIGIT.
61  * 03/29/01 dws   Removed simulator-specific declarations.
62  *                Changed uint32 to uint32_t.
63  * 03/28/01 jke   copied from n8_pk.h
64  ****************************************************************************/
65 
66 #ifndef N8_PK_COMMON_H
67 #define N8_PK_COMMON_H
68 
69 #include "n8_common.h"
70 
71 /* Public Key Processor Big Number Cache */
72 #define PK_Bytes_Per_BigNum_Digit      (SIMON_BITS_PER_DIGIT / 8)
73 
74 #define BYTES_TO_PKDIGITS(__B)    (((__B) + PK_Bytes_Per_BigNum_Digit - 1) / PK_Bytes_Per_BigNum_Digit)
75 #define PKDIGITS_TO_BYTES(__D)    ((__D) * PK_Bytes_Per_BigNum_Digit)
76 
77 /* Public Key Processor command block */
78 typedef struct {
79     uint32_t opcode_si;                        /* word  0      */
80     uint32_t r_offset;                         /* word  1      */
81     uint32_t m_length_offset;                  /* word  2      */
82     uint32_t a_length_offset;                  /* word  3      */
83     uint32_t b_length_offset;                  /* word  4      */
84     uint32_t c_offset;                         /* word  5      */
85     uint32_t reserved[2];                      /* word  6 - 7  */
86 } PK_CMD_BLOCK_t;
87 
88 /* Public Key Processor Load/Store command block */
89 typedef struct {
90     uint32_t opcode_si;                        /* word  0      */
91     uint32_t r_offset;                         /* word  1      */
92     uint32_t data_addr_ms;                     /* word  2      */
93     uint32_t data_addr_ls;                     /* word  3      */
94     uint32_t data_length;                      /* word  4      */
95     uint32_t reserved[3];                      /* word  5 - 7  */
96 } PK_LDST_CMD_BLOCK_t;
97 
98 /* Public Key Processor RSA & DSA command block */
99 typedef struct {
100     uint32_t opcode_si;                        /* word  0      */
101     uint32_t sks;                              /* word  1      */
102     uint32_t reserved[6];                      /* word  2 - 7  */
103 } PK_RSA_CMD_BLOCK_t;
104 
105 /* Field mask and shift contants */
106 #define PK_Cmd_SI_Mask                       0x08000000
107 #define PK_Cmd_Opcode_Mask                   0xf0000000
108 #define PK_Cmd_Offset_Mask                   0x000000ff
109 #define PK_Cmd_Length_Mask                   0x00ff0000
110 #define PK_Cmd_Length_Shift                  16
111 #define PK_Cmd_Data_Length_Mask              0x00001fff
112 #define PK_Cmd_N_Mask                        0x01000000
113 #define PK_Cmd_N_Shift                       24
114 #define PK_Cmd_Key_Length_Mask               0x00ff0000
115 #define PK_Cmd_Key_Length_Shift              16
116 #define PK_Cmd_SKS_Offset_Mask               0x00000fff
117 
118 /* Opcode definitions - already shifted */
119 #define PK_Cmd_A_Mod_M                       0x00000000
120 #define PK_Cmd_R_Mod_M                       0x10000000
121 #define PK_Cmd_A_Plus_B_Mod_M                0x20000000
122 #define PK_Cmd_A_Minus_B_Mod_M               0x30000000
123 #define PK_Cmd_Minus_A_Mod_M                 0x40000000
124 #define PK_Cmd_AB_Mod_M                      0x50000000
125 #define PK_Cmd_Inverse_A_Mod_M               0x60000000
126 #define PK_Cmd_Exp_G_Mod_M                   0x70000000
127 #define PK_Cmd_Load_R                        0x80000000
128 #define PK_Cmd_Store_R                       0x90000000
129 #define PK_Cmd_RSA_Private_Key_Op            0xa0000000
130 #define PK_Cmd_DSA_Sign_Op                   0xb0000000
131 #define PK_Cmd_NOP                           0xf0000000
132 
133 
134 /* Status values for config/status register */
135 #define PK_Status_PKH_Enable                 0x80000000
136 #define PK_Status_PKH_Busy                   0x40000000
137 #define PK_Status_PKE_Go                     0x20000000
138 #define PK_Status_PKE_Busy                   0x10000000
139 #define PK_Status_Line_Number_Mask           0x0f000000
140 
141 #define PK_Status_Cmd_Complete               0x00020000
142 #define PK_Status_SKS_Write_Done             0x00010000
143 #define PK_Status_SKS_Offset_Error           0x00008000
144 #define PK_Status_Length_Error               0x00004000
145 #define PK_Status_Opcode_Error               0x00002000
146 #define PK_Status_Q_Align_Error              0x00001000
147 #define PK_Status_Read_Data_Error            0x00000800
148 #define PK_Status_Write_Data_Error           0x00000400
149 #define PK_Status_Read_Opcode_Error          0x00000200
150 #define PK_Status_Access_Error               0x00000100
151 #define PK_Status_Reserved_Error             0x00000080
152 #define PK_Status_Timer_Error                0x00000040
153 #define PK_Status_Prime_Error                0x00000020
154 #define PK_Status_Invalid_B_Error            0x00000010
155 #define PK_Status_Invalid_A_Error            0x00000008
156 #define PK_Status_Invalid_M_Error            0x00000004
157 #define PK_Status_Invalid_R_Error            0x00000002
158 #define PK_Status_PKE_Opcode_Error           0x00000001
159 
160 #define PK_Status_Any_Condition_Mask         0x0001ffff
161 #define PK_Status_Any_Error_Mask             0x00007fff
162 #define PK_Status_Cmd_Error_Mask             0x0000f1ff
163 #define PK_Status_Bus_Error_Mask             0x00000e00
164 #define PK_Status_Halting_Error_Mask         0x00007eff
165 
166 /* Values for interrupt enables register */
167 #define PK_Enable_PKH_Enable                 0x80000000
168 #define PK_Enable_Cmd_Complete_Enable        0x00020000
169 #define PK_Enable_SKS_Write_Done_Enable      0x00010000
170 #define PK_Enable_SKS_Offset_Error_Enable    0x00008000
171 #define PK_Enable_Length_Error_Enable        0x00004000
172 #define PK_Enable_Opcode_Error_Enable        0x00002000
173 #define PK_Status_Q_Align_Error_Enable       0x00001000
174 #define PK_Enable_Read_Data_Error_Enable     0x00000800
175 #define PK_Enable_Write_Data_Error_Enable    0x00000400
176 #define PK_Enable_Read_Opcode_Error_Enable   0x00000200
177 #define PK_Enable_Access_Error_Enable        0x00000100
178 #define PK_Enable_Reserved_Error_Enable      0x00000080
179 #define PK_Enable_Timer_Error_Enable         0x00000040
180 #define PK_Enable_Prime_Error_Enable         0x00000020
181 #define PK_Enable_Invalid_B_Error_Enable     0x00000010
182 #define PK_Enable_Invalid_A_Error_Enable     0x00000008
183 #define PK_Enable_Invalid_M_Error_Enable     0x00000004
184 #define PK_Enable_Invalid_R_Error_Enable     0x00000002
185 #define PK_Enable_PKE_Opcode_Error_Enable    0x00000001
186 
187 #define PK_Enable_All_Enable_Mask            0x0001ffff
188 #define PK_Enable_Error_Enable_Mask          0x00007fff
189 
190 /* Values for Secure Key Storage control register */
191 #define PK_SKS_Go_Busy                       0x80000000
192 #define PK_SKS_PROM_Error                    0x40000000
193 #define PK_SKS_Access_Error                  0x20000000
194 #define PK_SKS_Operation_Mask                0x00003000
195 #define PK_SKS_From_PROM_Mask                0x00002000
196 #define PK_SKS_Cache_Only_Mask               0x00001000
197 #define PK_SKS_Address_Mask                  0x00000fff
198 #define PK_SKS_Op_Address_Mask               0x00003fff
199 #define PK_SKS_Any_Error_Mask                0x60000000
200 #define PK_SKS_Max_Length                    0x00001000
201 
202 /* RSA & DSA constants */
203 #define PK_RSA_Min_Key_Length                2
204 #define PK_RSA_Max_Key_Length                32
205 #define PK_DSA_Min_Key_Length                2
206 #define PK_DSA_Max_Key_Length                32
207 
208 /* Diffie-Hellman constants */
209 #define PK_DH_CP_Byte_Length                 PK_Bytes_Per_BigNum_Digit
210 
211 #endif /* N8_PK_COMMON_H */
212 
213