| 1 | /*
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| 2 | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /* Internal ASN1 structures and functions: not for application use */
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| 11 |
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| 12 | /* ASN1 public key method structure */
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| 13 |
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| 14 | struct evp_pkey_asn1_method_st {
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| 15 | int pkey_id;
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| 16 | int pkey_base_id;
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| 17 | unsigned long pkey_flags;
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| 18 | char *pem_str;
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| 19 | char *info;
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| 20 | int (*pub_decode) (EVP_PKEY *pk, X509_PUBKEY *pub);
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| 21 | int (*pub_encode) (X509_PUBKEY *pub, const EVP_PKEY *pk);
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| 22 | int (*pub_cmp) (const EVP_PKEY *a, const EVP_PKEY *b);
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| 23 | int (*pub_print) (BIO *out, const EVP_PKEY *pkey, int indent,
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| 24 | ASN1_PCTX *pctx);
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| 25 | int (*priv_decode) (EVP_PKEY *pk, const PKCS8_PRIV_KEY_INFO *p8inf);
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| 26 | int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
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| 27 | int (*priv_print) (BIO *out, const EVP_PKEY *pkey, int indent,
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| 28 | ASN1_PCTX *pctx);
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| 29 | int (*pkey_size) (const EVP_PKEY *pk);
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| 30 | int (*pkey_bits) (const EVP_PKEY *pk);
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| 31 | int (*pkey_security_bits) (const EVP_PKEY *pk);
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| 32 | int (*param_decode) (EVP_PKEY *pkey,
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| 33 | const unsigned char **pder, int derlen);
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| 34 | int (*param_encode) (const EVP_PKEY *pkey, unsigned char **pder);
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| 35 | int (*param_missing) (const EVP_PKEY *pk);
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| 36 | int (*param_copy) (EVP_PKEY *to, const EVP_PKEY *from);
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| 37 | int (*param_cmp) (const EVP_PKEY *a, const EVP_PKEY *b);
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| 38 | int (*param_print) (BIO *out, const EVP_PKEY *pkey, int indent,
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| 39 | ASN1_PCTX *pctx);
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| 40 | int (*sig_print) (BIO *out,
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| 41 | const X509_ALGOR *sigalg, const ASN1_STRING *sig,
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| 42 | int indent, ASN1_PCTX *pctx);
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| 43 | void (*pkey_free) (EVP_PKEY *pkey);
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| 44 | int (*pkey_ctrl) (EVP_PKEY *pkey, int op, long arg1, void *arg2);
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| 45 | /* Legacy functions for old PEM */
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| 46 | int (*old_priv_decode) (EVP_PKEY *pkey,
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| 47 | const unsigned char **pder, int derlen);
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| 48 | int (*old_priv_encode) (const EVP_PKEY *pkey, unsigned char **pder);
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| 49 | /* Custom ASN1 signature verification */
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| 50 | int (*item_verify) (EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
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| 51 | X509_ALGOR *a, ASN1_BIT_STRING *sig, EVP_PKEY *pkey);
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| 52 | int (*item_sign) (EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
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| 53 | X509_ALGOR *alg1, X509_ALGOR *alg2,
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| 54 | ASN1_BIT_STRING *sig);
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| 55 | } /* EVP_PKEY_ASN1_METHOD */ ;
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| 56 |
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| 57 | DEFINE_STACK_OF_CONST(EVP_PKEY_ASN1_METHOD)
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| 58 |
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| 59 | extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
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| 60 | extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
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| 61 | extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
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| 62 | extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5];
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| 63 | extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
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| 64 | extern const EVP_PKEY_ASN1_METHOD ecx25519_asn1_meth;
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| 65 | extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
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| 66 | extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2];
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| 67 |
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| 68 | /*
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| 69 | * These are used internally in the ASN1_OBJECT to keep track of whether the
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| 70 | * names and data need to be free()ed
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| 71 | */
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| 72 | # define ASN1_OBJECT_FLAG_DYNAMIC 0x01/* internal use */
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| 73 | # define ASN1_OBJECT_FLAG_CRITICAL 0x02/* critical x509v3 object id */
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| 74 | # define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04/* internal use */
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| 75 | # define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08/* internal use */
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| 76 | struct asn1_object_st {
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| 77 | const char *sn, *ln;
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| 78 | int nid;
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| 79 | int length;
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| 80 | const unsigned char *data; /* data remains const after init */
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| 81 | int flags; /* Should we free this one */
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| 82 | };
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| 83 |
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| 84 | /* ASN1 print context structure */
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| 85 |
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| 86 | struct asn1_pctx_st {
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| 87 | unsigned long flags;
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| 88 | unsigned long nm_flags;
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| 89 | unsigned long cert_flags;
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| 90 | unsigned long oid_flags;
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| 91 | unsigned long str_flags;
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| 92 | } /* ASN1_PCTX */ ;
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| 93 |
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| 94 | int asn1_valid_host(const ASN1_STRING *host);
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