1
2
3
4
5
6
7
8
9
10
11
12
13
14#ifndef _LINUX_PUBLIC_KEY_H
15#define _LINUX_PUBLIC_KEY_H
16
17#include <linux/mpi.h>
18
19enum pkey_algo {
20 PKEY_ALGO_DSA,
21 PKEY_ALGO_RSA,
22 PKEY_ALGO__LAST
23};
24
25extern const char *const pkey_algo[PKEY_ALGO__LAST];
26
27enum pkey_hash_algo {
28 PKEY_HASH_MD4,
29 PKEY_HASH_MD5,
30 PKEY_HASH_SHA1,
31 PKEY_HASH_RIPE_MD_160,
32 PKEY_HASH_SHA256,
33 PKEY_HASH_SHA384,
34 PKEY_HASH_SHA512,
35 PKEY_HASH_SHA224,
36 PKEY_HASH__LAST
37};
38
39extern const char *const pkey_hash_algo[PKEY_HASH__LAST];
40
41enum pkey_id_type {
42 PKEY_ID_PGP,
43 PKEY_ID_X509,
44 PKEY_ID_TYPE__LAST
45};
46
47extern const char *const pkey_id_type[PKEY_ID_TYPE__LAST];
48
49
50
51
52
53
54
55struct public_key {
56 const struct public_key_algorithm *algo;
57 u8 capabilities;
58#define PKEY_CAN_ENCRYPT 0x01
59#define PKEY_CAN_DECRYPT 0x02
60#define PKEY_CAN_SIGN 0x04
61#define PKEY_CAN_VERIFY 0x08
62 enum pkey_id_type id_type : 8;
63 union {
64 MPI mpi[5];
65 struct {
66 MPI p;
67 MPI q;
68 MPI g;
69 MPI y;
70 MPI x;
71 } dsa;
72 struct {
73 MPI n;
74 MPI e;
75 MPI d;
76 MPI p;
77 MPI q;
78 } rsa;
79 };
80};
81
82extern void public_key_destroy(void *payload);
83
84
85
86
87struct public_key_signature {
88 u8 *digest;
89 u8 digest_size;
90 u8 nr_mpi;
91 enum pkey_hash_algo pkey_hash_algo : 8;
92 union {
93 MPI mpi[2];
94 struct {
95 MPI s;
96 } rsa;
97 struct {
98 MPI r;
99 MPI s;
100 } dsa;
101 };
102};
103
104struct key;
105extern int verify_signature(const struct key *key,
106 const struct public_key_signature *sig);
107
108#endif
109