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);
57 } /* EVP_PKEY_ASN1_METHOD */ ;
59 DEFINE_STACK_OF_CONST(EVP_PKEY_ASN1_METHOD)
61 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
62 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
63 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
64 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5];
65 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
66 extern const EVP_PKEY_ASN1_METHOD ecx25519_asn1_meth;
67 extern const EVP_PKEY_ASN1_METHOD poly1305_asn1_meth;
69 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
70 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2];
71 extern const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth;
72 extern const EVP_PKEY_ASN1_METHOD siphash_asn1_meth;
75 * These are used internally in the ASN1_OBJECT to keep track of whether the
76 * names and data need to be free()ed
78 # define ASN1_OBJECT_FLAG_DYNAMIC 0x01/* internal use */
79 # define ASN1_OBJECT_FLAG_CRITICAL 0x02/* critical x509v3 object id */
80 # define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04/* internal use */
81 # define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08/* internal use */
82 struct asn1_object_st {
86 const unsigned char *data; /* data remains const after init */
87 int flags; /* Should we free this one */
90 /* ASN1 print context structure */
94 unsigned long nm_flags;
95 unsigned long cert_flags;
96 unsigned long oid_flags;
97 unsigned long str_flags;
100 int asn1_valid_host(const ASN1_STRING *host);