Merge branch 'master' into 4.next
[exim.git] / src / src / pdkim / signing.h
1 /*
2 * PDKIM - a RFC4871 (DKIM) implementation
3 *
4 * Copyright (C) 2017 Exim maintainers
5 *
6 * RSA signing/verification interface
7 */
8
9 #include "../exim.h"
10
11 #ifndef DISABLE_DKIM /* entire file */
12
13 #include "crypt_ver.h"
14
15 #ifdef SIGN_OPENSSL
16 # include <openssl/rsa.h>
17 # include <openssl/ssl.h>
18 # include <openssl/err.h>
19 #elif defined(SIGN_GNUTLS)
20 # include <gnutls/gnutls.h>
21 # include <gnutls/x509.h>
22 # include <gnutls/abstract.h>
23 #elif defined(SIGN_GCRYPT)
24 # include <gcrypt.h>
25 # include <libtasn1.h>
26 #endif
27
28 #include "../blob.h"
29
30
31 #ifdef SIGN_OPENSSL
32
33 typedef struct {
34 EVP_PKEY * key;
35 } es_ctx;
36
37 typedef struct {
38 EVP_PKEY * key;
39 } ev_ctx;
40
41 #elif defined(SIGN_GNUTLS)
42
43 typedef struct {
44 gnutls_x509_privkey_t key;
45 } es_ctx;
46
47 typedef struct {
48 gnutls_pubkey_t key;
49 } ev_ctx;
50
51 #elif defined(SIGN_GCRYPT)
52
53 typedef struct {
54 int keytype;
55 gcry_mpi_t n;
56 gcry_mpi_t e;
57 gcry_mpi_t d;
58 gcry_mpi_t p;
59 gcry_mpi_t q;
60 gcry_mpi_t dp;
61 gcry_mpi_t dq;
62 gcry_mpi_t qp;
63 } es_ctx;
64
65 typedef struct {
66 int keytype;
67 gcry_mpi_t n;
68 gcry_mpi_t e;
69 } ev_ctx;
70
71 #endif
72
73
74 extern void exim_dkim_init(void);
75 extern gstring * exim_dkim_data_append(gstring *, uschar *);
76
77 extern const uschar * exim_dkim_signing_init(uschar *, es_ctx *);
78 extern const uschar * exim_dkim_sign(es_ctx *, hashmethod, blob *, blob *);
79 extern const uschar * exim_dkim_verify_init(blob *, ev_ctx *);
80 extern const uschar * exim_dkim_verify(ev_ctx *, hashmethod, blob *, blob *);
81
82 #endif /*DISABLE_DKIM*/
83 /* End of File */