1 /* 2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * 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 8 */ 9 10 /* Internal ASN1 structures and functions: not for application use */ 11 12 /* ASN1 public key method structure */ 13 14 struct evp_pkey_asn1_method_st { 15 int pkey_id; 16 int pkey_base_id; 17 unsigned long pkey_flags; 18 char *pem_str; 19 char *info; 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, 24 ASN1_PCTX *pctx); 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, 28 ASN1_PCTX *pctx); 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, 39 ASN1_PCTX *pctx); 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 /* Check */ 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 /* Get/set raw private/public key data */ 62 int (*set_priv_key) (EVP_PKEY *pk, const unsigned char *priv, size_t len); 63 int (*set_pub_key) (EVP_PKEY *pk, const unsigned char *pub, size_t len); 64 int (*get_priv_key) (const EVP_PKEY *pk, unsigned char *priv, size_t *len); 65 int (*get_pub_key) (const EVP_PKEY *pk, unsigned char *pub, size_t *len); 66 } /* EVP_PKEY_ASN1_METHOD */ ; 67 68 DEFINE_STACK_OF_CONST(EVP_PKEY_ASN1_METHOD) 69 70 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth; 71 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth; 72 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth; 73 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5]; 74 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth; 75 extern const EVP_PKEY_ASN1_METHOD ecx25519_asn1_meth; 76 extern const EVP_PKEY_ASN1_METHOD ecx448_asn1_meth; 77 extern const EVP_PKEY_ASN1_METHOD ed25519_asn1_meth; 78 extern const EVP_PKEY_ASN1_METHOD ed448_asn1_meth; 79 extern const EVP_PKEY_ASN1_METHOD sm2_asn1_meth; 80 extern const EVP_PKEY_ASN1_METHOD poly1305_asn1_meth; 81 82 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth; 83 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2]; 84 extern const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth; 85 extern const EVP_PKEY_ASN1_METHOD siphash_asn1_meth; 86 87 /* 88 * These are used internally in the ASN1_OBJECT to keep track of whether the 89 * names and data need to be free()ed 90 */ 91 # define ASN1_OBJECT_FLAG_DYNAMIC 0x01/* internal use */ 92 # define ASN1_OBJECT_FLAG_CRITICAL 0x02/* critical x509v3 object id */ 93 # define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04/* internal use */ 94 # define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08/* internal use */ 95 struct asn1_object_st { 96 const char *sn, *ln; 97 int nid; 98 int length; 99 const unsigned char *data; /* data remains const after init */ 100 int flags; /* Should we free this one */ 101 }; 102 103 /* ASN1 print context structure */ 104 105 struct asn1_pctx_st { 106 unsigned long flags; 107 unsigned long nm_flags; 108 unsigned long cert_flags; 109 unsigned long oid_flags; 110 unsigned long str_flags; 111 } /* ASN1_PCTX */ ; 112 113 int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb); 114