2 * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* Internal ASN1 structures and functions: not for application use */
12 /* ASN1 public key method structure */
14 struct evp_pkey_asn1_method_st
{
17 unsigned long pkey_flags
;
20 int (*pub_decode
) (EVP_PKEY
*pk
, X509_PUBKEY
*pub
);
21 int (*pub_encode
) (X509_PUBKEY
*pub
, const EVP_PKEY
*pk
);
22 int (*pub_cmp
) (const EVP_PKEY
*a
, const EVP_PKEY
*b
);
23 int (*pub_print
) (BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
25 int (*priv_decode
) (EVP_PKEY
*pk
, const PKCS8_PRIV_KEY_INFO
*p8inf
);
26 int (*priv_encode
) (PKCS8_PRIV_KEY_INFO
*p8
, const EVP_PKEY
*pk
);
27 int (*priv_print
) (BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
29 int (*pkey_size
) (const EVP_PKEY
*pk
);
30 int (*pkey_bits
) (const EVP_PKEY
*pk
);
31 int (*pkey_security_bits
) (const EVP_PKEY
*pk
);
32 int (*param_decode
) (EVP_PKEY
*pkey
,
33 const unsigned char **pder
, int derlen
);
34 int (*param_encode
) (const EVP_PKEY
*pkey
, unsigned char **pder
);
35 int (*param_missing
) (const EVP_PKEY
*pk
);
36 int (*param_copy
) (EVP_PKEY
*to
, const EVP_PKEY
*from
);
37 int (*param_cmp
) (const EVP_PKEY
*a
, const EVP_PKEY
*b
);
38 int (*param_print
) (BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
40 int (*sig_print
) (BIO
*out
,
41 const X509_ALGOR
*sigalg
, const ASN1_STRING
*sig
,
42 int indent
, ASN1_PCTX
*pctx
);
43 void (*pkey_free
) (EVP_PKEY
*pkey
);
44 int (*pkey_ctrl
) (EVP_PKEY
*pkey
, int op
, long arg1
, void *arg2
);
45 /* Legacy functions for old PEM */
46 int (*old_priv_decode
) (EVP_PKEY
*pkey
,
47 const unsigned char **pder
, int derlen
);
48 int (*old_priv_encode
) (const EVP_PKEY
*pkey
, unsigned char **pder
);
49 /* Custom ASN1 signature verification */
50 int (*item_verify
) (EVP_MD_CTX
*ctx
, const ASN1_ITEM
*it
, void *asn
,
51 X509_ALGOR
*a
, ASN1_BIT_STRING
*sig
, EVP_PKEY
*pkey
);
52 int (*item_sign
) (EVP_MD_CTX
*ctx
, const ASN1_ITEM
*it
, void *asn
,
53 X509_ALGOR
*alg1
, X509_ALGOR
*alg2
,
54 ASN1_BIT_STRING
*sig
);
55 int (*siginf_set
) (X509_SIG_INFO
*siginf
, const X509_ALGOR
*alg
,
56 const ASN1_STRING
*sig
);
58 int (*pkey_check
) (const EVP_PKEY
*pk
);
59 int (*pkey_public_check
) (const EVP_PKEY
*pk
);
60 int (*pkey_param_check
) (const EVP_PKEY
*pk
);
61 } /* EVP_PKEY_ASN1_METHOD */ ;
63 DEFINE_STACK_OF_CONST(EVP_PKEY_ASN1_METHOD
)
65 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth
;
66 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth
;
67 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth
;
68 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths
[5];
69 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth
;
70 extern const EVP_PKEY_ASN1_METHOD ecx25519_asn1_meth
;
71 extern const EVP_PKEY_ASN1_METHOD ed25519_asn1_meth
;
72 extern const EVP_PKEY_ASN1_METHOD poly1305_asn1_meth
;
74 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth
;
75 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths
[2];
76 extern const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth
;
77 extern const EVP_PKEY_ASN1_METHOD siphash_asn1_meth
;
80 * These are used internally in the ASN1_OBJECT to keep track of whether the
81 * names and data need to be free()ed
83 # define ASN1_OBJECT_FLAG_DYNAMIC 0x01/* internal use */
84 # define ASN1_OBJECT_FLAG_CRITICAL 0x02/* critical x509v3 object id */
85 # define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04/* internal use */
86 # define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08/* internal use */
87 struct asn1_object_st
{
91 const unsigned char *data
; /* data remains const after init */
92 int flags
; /* Should we free this one */
95 /* ASN1 print context structure */
99 unsigned long nm_flags
;
100 unsigned long cert_flags
;
101 unsigned long oid_flags
;
102 unsigned long str_flags
;
105 int asn1_valid_host(const ASN1_STRING
*host
);
106 int asn1_d2i_read_bio(BIO
*in
, BUF_MEM
**pb
);