diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/x509/x_pubkey.c')
-rw-r--r-- | Cryptlib/OpenSSL/crypto/x509/x_pubkey.c | 374 |
1 files changed, 0 insertions, 374 deletions
diff --git a/Cryptlib/OpenSSL/crypto/x509/x_pubkey.c b/Cryptlib/OpenSSL/crypto/x509/x_pubkey.c deleted file mode 100644 index cc692834..00000000 --- a/Cryptlib/OpenSSL/crypto/x509/x_pubkey.c +++ /dev/null @@ -1,374 +0,0 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#include <stdio.h> -#include "internal/cryptlib.h" -#include <openssl/asn1t.h> -#include <openssl/x509.h> -#include "internal/asn1_int.h" -#include "internal/evp_int.h" -#include "internal/x509_int.h" -#include <openssl/rsa.h> -#include <openssl/dsa.h> - -struct X509_pubkey_st { - X509_ALGOR *algor; - ASN1_BIT_STRING *public_key; - EVP_PKEY *pkey; -}; - -static int x509_pubkey_decode(EVP_PKEY **pk, X509_PUBKEY *key); - -/* Minor tweak to operation: free up EVP_PKEY */ -static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, - void *exarg) -{ - if (operation == ASN1_OP_FREE_POST) { - X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; - EVP_PKEY_free(pubkey->pkey); - } else if (operation == ASN1_OP_D2I_POST) { - /* Attempt to decode public key and cache in pubkey structure. */ - X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; - EVP_PKEY_free(pubkey->pkey); - /* - * Opportunistically decode the key but remove any non fatal errors - * from the queue. Subsequent explicit attempts to decode/use the key - * will return an appropriate error. - */ - ERR_set_mark(); - if (x509_pubkey_decode(&pubkey->pkey, pubkey) == -1) - return 0; - ERR_pop_to_mark(); - } - return 1; -} - -ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = { - ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), - ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) -} ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY) - -IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) - -int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) -{ - X509_PUBKEY *pk = NULL; - - if (x == NULL) - return (0); - - if ((pk = X509_PUBKEY_new()) == NULL) - goto error; - - if (pkey->ameth) { - if (pkey->ameth->pub_encode) { - if (!pkey->ameth->pub_encode(pk, pkey)) { - X509err(X509_F_X509_PUBKEY_SET, - X509_R_PUBLIC_KEY_ENCODE_ERROR); - goto error; - } - } else { - X509err(X509_F_X509_PUBKEY_SET, X509_R_METHOD_NOT_SUPPORTED); - goto error; - } - } else { - X509err(X509_F_X509_PUBKEY_SET, X509_R_UNSUPPORTED_ALGORITHM); - goto error; - } - - X509_PUBKEY_free(*x); - *x = pk; - pk->pkey = pkey; - EVP_PKEY_up_ref(pkey); - return 1; - - error: - X509_PUBKEY_free(pk); - return 0; -} - -/* - * Attempt to decode a public key. - * Returns 1 on success, 0 for a decode failure and -1 for a fatal - * error e.g. malloc failure. - */ - - -static int x509_pubkey_decode(EVP_PKEY **ppkey, X509_PUBKEY *key) - { - EVP_PKEY *pkey = EVP_PKEY_new(); - - if (pkey == NULL) { - X509err(X509_F_X509_PUBKEY_DECODE, ERR_R_MALLOC_FAILURE); - return -1; - } - - if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(key->algor->algorithm))) { - X509err(X509_F_X509_PUBKEY_DECODE, X509_R_UNSUPPORTED_ALGORITHM); - goto error; - } - - if (pkey->ameth->pub_decode) { - /* - * Treat any failure of pub_decode as a decode error. In - * future we could have different return codes for decode - * errors and fatal errors such as malloc failure. - */ - if (!pkey->ameth->pub_decode(pkey, key)) { - X509err(X509_F_X509_PUBKEY_DECODE, X509_R_PUBLIC_KEY_DECODE_ERROR); - goto error; - } - } else { - X509err(X509_F_X509_PUBKEY_DECODE, X509_R_METHOD_NOT_SUPPORTED); - goto error; - } - - *ppkey = pkey; - return 1; - - error: - EVP_PKEY_free(pkey); - return 0; -} - -EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key) -{ - EVP_PKEY *ret = NULL; - - if (key == NULL || key->public_key == NULL) - return NULL; - - if (key->pkey != NULL) - return key->pkey; - - /* - * When the key ASN.1 is initially parsed an attempt is made to - * decode the public key and cache the EVP_PKEY structure. If this - * operation fails the cached value will be NULL. Parsing continues - * to allow parsing of unknown key types or unsupported forms. - * We repeat the decode operation so the appropriate errors are left - * in the queue. - */ - x509_pubkey_decode(&ret, key); - /* If decode doesn't fail something bad happened */ - if (ret != NULL) { - X509err(X509_F_X509_PUBKEY_GET0, ERR_R_INTERNAL_ERROR); - EVP_PKEY_free(ret); - } - - return NULL; -} - -EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key) -{ - EVP_PKEY *ret = X509_PUBKEY_get0(key); - if (ret != NULL) - EVP_PKEY_up_ref(ret); - return ret; -} - -/* - * Now two pseudo ASN1 routines that take an EVP_PKEY structure and encode or - * decode as X509_PUBKEY - */ - -EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) -{ - X509_PUBKEY *xpk; - EVP_PKEY *pktmp; - const unsigned char *q; - q = *pp; - xpk = d2i_X509_PUBKEY(NULL, &q, length); - if (!xpk) - return NULL; - pktmp = X509_PUBKEY_get(xpk); - X509_PUBKEY_free(xpk); - if (!pktmp) - return NULL; - *pp = q; - if (a) { - EVP_PKEY_free(*a); - *a = pktmp; - } - return pktmp; -} - -int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp) -{ - X509_PUBKEY *xpk = NULL; - int ret; - if (!a) - return 0; - if (!X509_PUBKEY_set(&xpk, a)) - return 0; - ret = i2d_X509_PUBKEY(xpk, pp); - X509_PUBKEY_free(xpk); - return ret; -} - -/* - * The following are equivalents but which return RSA and DSA keys - */ -#ifndef OPENSSL_NO_RSA -RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) -{ - EVP_PKEY *pkey; - RSA *key; - const unsigned char *q; - q = *pp; - pkey = d2i_PUBKEY(NULL, &q, length); - if (!pkey) - return NULL; - key = EVP_PKEY_get1_RSA(pkey); - EVP_PKEY_free(pkey); - if (!key) - return NULL; - *pp = q; - if (a) { - RSA_free(*a); - *a = key; - } - return key; -} - -int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp) -{ - EVP_PKEY *pktmp; - int ret; - if (!a) - return 0; - pktmp = EVP_PKEY_new(); - if (pktmp == NULL) { - ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE); - return 0; - } - EVP_PKEY_set1_RSA(pktmp, a); - ret = i2d_PUBKEY(pktmp, pp); - EVP_PKEY_free(pktmp); - return ret; -} -#endif - -#ifndef OPENSSL_NO_DSA -DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) -{ - EVP_PKEY *pkey; - DSA *key; - const unsigned char *q; - q = *pp; - pkey = d2i_PUBKEY(NULL, &q, length); - if (!pkey) - return NULL; - key = EVP_PKEY_get1_DSA(pkey); - EVP_PKEY_free(pkey); - if (!key) - return NULL; - *pp = q; - if (a) { - DSA_free(*a); - *a = key; - } - return key; -} - -int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp) -{ - EVP_PKEY *pktmp; - int ret; - if (!a) - return 0; - pktmp = EVP_PKEY_new(); - if (pktmp == NULL) { - ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE); - return 0; - } - EVP_PKEY_set1_DSA(pktmp, a); - ret = i2d_PUBKEY(pktmp, pp); - EVP_PKEY_free(pktmp); - return ret; -} -#endif - -#ifndef OPENSSL_NO_EC -EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) -{ - EVP_PKEY *pkey; - EC_KEY *key; - const unsigned char *q; - q = *pp; - pkey = d2i_PUBKEY(NULL, &q, length); - if (!pkey) - return (NULL); - key = EVP_PKEY_get1_EC_KEY(pkey); - EVP_PKEY_free(pkey); - if (!key) - return (NULL); - *pp = q; - if (a) { - EC_KEY_free(*a); - *a = key; - } - return (key); -} - -int i2d_EC_PUBKEY(EC_KEY *a, unsigned char **pp) -{ - EVP_PKEY *pktmp; - int ret; - if (!a) - return (0); - if ((pktmp = EVP_PKEY_new()) == NULL) { - ASN1err(ASN1_F_I2D_EC_PUBKEY, ERR_R_MALLOC_FAILURE); - return (0); - } - EVP_PKEY_set1_EC_KEY(pktmp, a); - ret = i2d_PUBKEY(pktmp, pp); - EVP_PKEY_free(pktmp); - return (ret); -} -#endif - -int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, - int ptype, void *pval, - unsigned char *penc, int penclen) -{ - if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) - return 0; - if (penc) { - OPENSSL_free(pub->public_key->data); - pub->public_key->data = penc; - pub->public_key->length = penclen; - /* Set number of unused bits to zero */ - pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); - pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; - } - return 1; -} - -int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, - const unsigned char **pk, int *ppklen, - X509_ALGOR **pa, X509_PUBKEY *pub) -{ - if (ppkalg) - *ppkalg = pub->algor->algorithm; - if (pk) { - *pk = pub->public_key->data; - *ppklen = pub->public_key->length; - } - if (pa) - *pa = pub->algor; - return 1; -} - -ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) -{ - if (x == NULL) - return NULL; - return x->cert_info.key->public_key; -} |