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Raise max RSA keysize (WIP)
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--- old/usr/src/common/bignum/bignum.h
+++ new/usr/src/common/bignum/bignum.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 */
25 25
26 26 #ifndef _BIGNUM_H
27 27 #define _BIGNUM_H
28 28
29 29 #ifdef __cplusplus
30 30 extern "C" {
31 31 #endif
32 32
33 33 #include <sys/types.h>
34 34
35 35 #if defined(__sparcv9) || defined(__amd64) /* 64-bit chunk size */
36 36 #ifndef UMUL64
37 37 #define UMUL64 /* 64-bit multiplication results are supported */
38 38 #endif
39 39 #else
40 40 #define BIGNUM_CHUNK_32
41 41 #endif
42 42
43 43
44 44 #define BITSINBYTE 8
45 45
46 46 /* Bignum "digits" (aka "chunks" or "words") are either 32- or 64-bits */
47 47 #ifdef BIGNUM_CHUNK_32
48 48 #define BIG_CHUNK_SIZE 32
49 49 #define BIG_CHUNK_TYPE uint32_t
50 50 #define BIG_CHUNK_TYPE_SIGNED int32_t
51 51 #define BIG_CHUNK_HIGHBIT 0x80000000
52 52 #define BIG_CHUNK_ALLBITS 0xffffffff
53 53 #define BIG_CHUNK_LOWHALFBITS 0xffff
54 54 #define BIG_CHUNK_HALF_HIGHBIT 0x8000
55 55
56 56 #else
57 57 #define BIG_CHUNK_SIZE 64
58 58 #define BIG_CHUNK_TYPE uint64_t
59 59 #define BIG_CHUNK_TYPE_SIGNED int64_t
60 60 #define BIG_CHUNK_HIGHBIT 0x8000000000000000ULL
61 61 #define BIG_CHUNK_ALLBITS 0xffffffffffffffffULL
62 62 #define BIG_CHUNK_LOWHALFBITS 0xffffffffULL
63 63 #define BIG_CHUNK_HALF_HIGHBIT 0x80000000ULL
64 64 #endif
65 65
66 66 #define BITLEN2BIGNUMLEN(x) ((x) > 0 ? \
67 67 ((((x) - 1) / BIG_CHUNK_SIZE) + 1) : 0)
68 68 #define CHARLEN2BIGNUMLEN(x) ((x) > 0 ? \
69 69 ((((x) - 1) / sizeof (BIG_CHUNK_TYPE)) + 1) : 0)
70 70
71 71 #define BIGNUM_WORDSIZE (BIG_CHUNK_SIZE / BITSINBYTE) /* word size in bytes */
72 72 #define BIG_CHUNKS_FOR_160BITS BITLEN2BIGNUMLEN(160)
73 73
74 74
75 75 /*
76 76 * leading 0's are permitted
77 77 * 0 should be represented by size>=1, size>=len>=1, sign=1,
78 78 * value[i]=0 for 0<i<len
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79 79 */
80 80 typedef struct {
81 81 /* size and len in units of BIG_CHUNK_TYPE words */
82 82 uint32_t size; /* size of memory allocated for value */
83 83 uint32_t len; /* number of valid data words in value */
84 84 int sign; /* 1 for nonnegative, -1 for negative */
85 85 int malloced; /* 1 if value was malloced, 0 if not */
86 86 BIG_CHUNK_TYPE *value;
87 87 } BIGNUM;
88 88
89 -#define BIGTMPSIZE 65
89 +#define BIGTMPSIZE 257
90 90
91 91 #define BIG_TRUE 1
92 92 #define BIG_FALSE 0
93 93
94 94 typedef int BIG_ERR_CODE;
95 95
96 96 /* error codes */
97 97 #define BIG_OK 0
98 98 #define BIG_NO_MEM -1
99 99 #define BIG_INVALID_ARGS -2
100 100 #define BIG_DIV_BY_0 -3
101 101 #define BIG_NO_RANDOM -4
102 102 #define BIG_GENERAL_ERR -5
103 103 #define BIG_TEST_FAILED -6
104 104 #define BIG_BUFFER_TOO_SMALL -7
105 105
106 106
107 107 #define arraysize(x) (sizeof (x) / sizeof (x[0]))
108 108
109 109 typedef BIG_ERR_CODE (*big_modexp_ncp_func_ptr)(BIGNUM *result,
110 110 BIGNUM *ma, BIGNUM *e, BIGNUM *n,
111 111 BIGNUM *tmp, BIG_CHUNK_TYPE n0, void *ncp, void *req);
112 112
113 113 typedef struct {
114 114 big_modexp_ncp_func_ptr func;
115 115 void *ncp;
116 116 void *reqp;
117 117 } big_modexp_ncp_info_t;
118 118
119 119
120 120 #ifdef USE_FLOATING_POINT
121 121 void conv_d16_to_i32(uint32_t *i32, double *d16, int64_t *tmp, int ilen);
122 122 void conv_i32_to_d32(double *d32, uint32_t *i32, int len);
123 123 void conv_i32_to_d16(double *d16, uint32_t *i32, int len);
124 124 void conv_i32_to_d32_and_d16(double *d32, double *d16,
125 125 uint32_t *i32, int len);
126 126 void mont_mulf_noconv(uint32_t *result, double *dm1, double *dm2, double *dt,
127 127 double *dn, uint32_t *nint, int nlen, double dn0);
128 128 #endif /* USE_FLOATING_POINT */
129 129
130 130 extern BIGNUM big_One;
131 131 extern BIGNUM big_Two;
132 132
133 133 void printbignum(char *aname, BIGNUM *a);
134 134
135 135 BIG_ERR_CODE big_init(BIGNUM *number, int size);
136 136 BIG_ERR_CODE big_extend(BIGNUM *number, int size);
137 137 void big_finish(BIGNUM *number);
138 138 void bytestring2bignum(BIGNUM *bn, uchar_t *kn, size_t len);
139 139 void bignum2bytestring(uchar_t *kn, BIGNUM *bn, size_t len);
140 140 BIG_ERR_CODE big_mont_rr(BIGNUM *result, BIGNUM *n);
141 141 BIG_ERR_CODE big_modexp(BIGNUM *result, BIGNUM *a, BIGNUM *e,
142 142 BIGNUM *n, BIGNUM *n_rr);
143 143 BIG_ERR_CODE big_modexp_ext(BIGNUM *result, BIGNUM *a, BIGNUM *e,
144 144 BIGNUM *n, BIGNUM *n_rr, big_modexp_ncp_info_t *info);
145 145 BIG_ERR_CODE big_modexp_crt(BIGNUM *result, BIGNUM *a, BIGNUM *dmodpminus1,
146 146 BIGNUM *dmodqminus1, BIGNUM *p, BIGNUM *q, BIGNUM *pinvmodq,
147 147 BIGNUM *p_rr, BIGNUM *q_rr);
148 148 BIG_ERR_CODE big_modexp_crt_ext(BIGNUM *result, BIGNUM *a, BIGNUM *dmodpminus1,
149 149 BIGNUM *dmodqminus1, BIGNUM *p, BIGNUM *q, BIGNUM *pinvmodq,
150 150 BIGNUM *p_rr, BIGNUM *q_rr, big_modexp_ncp_info_t *info);
151 151 int big_cmp_abs(BIGNUM *a, BIGNUM *b);
152 152 BIG_ERR_CODE big_random(BIGNUM *r, size_t length, int (*rfunc)(void *, size_t));
153 153 BIG_ERR_CODE big_div_pos(BIGNUM *result, BIGNUM *remainder,
154 154 BIGNUM *aa, BIGNUM *bb);
155 155 BIG_ERR_CODE big_ext_gcd_pos(BIGNUM *gcd, BIGNUM *cm, BIGNUM *ce,
156 156 BIGNUM *m, BIGNUM *e);
157 157 BIG_ERR_CODE big_add(BIGNUM *result, BIGNUM *aa, BIGNUM *bb);
158 158 BIG_ERR_CODE big_add_abs(BIGNUM *result, BIGNUM *aa, BIGNUM *bb);
159 159 BIG_ERR_CODE big_mul(BIGNUM *result, BIGNUM *aa, BIGNUM *bb);
160 160 void big_shiftright(BIGNUM *result, BIGNUM *aa, int offs);
161 161 BIG_ERR_CODE big_nextprime_pos(BIGNUM *result, BIGNUM *n);
162 162 BIG_ERR_CODE big_nextprime_pos_ext(BIGNUM *result, BIGNUM *n,
163 163 big_modexp_ncp_info_t *info);
164 164 BIG_ERR_CODE big_sub_pos(BIGNUM *result, BIGNUM *aa, BIGNUM *bb);
165 165 BIG_ERR_CODE big_copy(BIGNUM *dest, BIGNUM *src);
166 166 BIG_ERR_CODE big_sub(BIGNUM *result, BIGNUM *aa, BIGNUM *bb);
167 167 int big_bitlength(BIGNUM *n);
168 168 BIG_ERR_CODE big_init1(BIGNUM *number, int size,
169 169 BIG_CHUNK_TYPE *buf, int bufsize);
170 170 BIG_ERR_CODE big_mont_mul(BIGNUM *ret,
171 171 BIGNUM *a, BIGNUM *b, BIGNUM *n, BIG_CHUNK_TYPE n0);
172 172 int big_is_zero(BIGNUM *n);
173 173 BIG_CHUNK_TYPE big_n0(BIG_CHUNK_TYPE n);
174 174
175 175
176 176 #if defined(HWCAP)
177 177
178 178 #if (BIG_CHUNK_SIZE != 32)
179 179 #error HWCAP works only with 32-bit bignum chunks
180 180 #endif
181 181
182 182 #define BIG_MUL_SET_VEC(r, a, len, digit) \
183 183 (*big_mul_set_vec_impl)(r, a, len, digit)
184 184 #define BIG_MUL_ADD_VEC(r, a, len, digit) \
185 185 (*big_mul_add_vec_impl)(r, a, len, digit)
186 186 #define BIG_MUL_VEC(r, a, alen, b, blen) \
187 187 (*big_mul_vec_impl)(r, a, alen, b, blen)
188 188 #define BIG_SQR_VEC(r, a, len) \
189 189 (*big_sqr_vec_impl)(r, a, len)
190 190
191 191 extern BIG_CHUNK_TYPE (*big_mul_set_vec_impl)
192 192 (BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int len, BIG_CHUNK_TYPE digit);
193 193 extern BIG_CHUNK_TYPE (*big_mul_add_vec_impl)
194 194 (BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int len, BIG_CHUNK_TYPE digit);
195 195 extern void (*big_mul_vec_impl)
196 196 (BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int alen, BIG_CHUNK_TYPE *b,
197 197 int blen);
198 198 extern void (*big_sqr_vec_impl)
199 199 (BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int len);
200 200
201 201 #else /* ! HWCAP */
202 202
203 203 #define BIG_MUL_SET_VEC(r, a, len, digit) big_mul_set_vec(r, a, len, digit)
204 204 #define BIG_MUL_ADD_VEC(r, a, len, digit) big_mul_add_vec(r, a, len, digit)
205 205 #define BIG_MUL_VEC(r, a, alen, b, blen) big_mul_vec(r, a, alen, b, blen)
206 206 #define BIG_SQR_VEC(r, a, len) big_sqr_vec(r, a, len)
207 207
208 208 extern BIG_CHUNK_TYPE big_mul_set_vec(BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a,
209 209 int len, BIG_CHUNK_TYPE d);
210 210 extern BIG_CHUNK_TYPE big_mul_add_vec(BIG_CHUNK_TYPE *r,
211 211 BIG_CHUNK_TYPE *a, int len, BIG_CHUNK_TYPE d);
212 212 extern void big_mul_vec(BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int alen,
213 213 BIG_CHUNK_TYPE *b, int blen);
214 214 extern void big_sqr_vec(BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int len);
215 215
216 216 #endif /* HWCAP */
217 217
218 218 #ifdef __cplusplus
219 219 }
220 220 #endif
221 221
222 222 #endif /* _BIGNUM_H */
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