X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fx_pubkey.c;h=36a130d6aaec261ed1377efc1b2e69e015a7e9c0;hp=91c2756116111e8e17fe1021e4f70b2b4b90bdf6;hb=c01ff880d47392b82cce2f93ac4a9bb8c68f8cc7;hpb=3eeaab4bed46e3320947d0f609b82007b65b5a46 diff --git a/crypto/asn1/x_pubkey.c b/crypto/asn1/x_pubkey.c index 91c2756116..36a130d6aa 100644 --- a/crypto/asn1/x_pubkey.c +++ b/crypto/asn1/x_pubkey.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -57,475 +57,318 @@ */ #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include #include +#include "internal/asn1_int.h" #ifndef OPENSSL_NO_RSA -#include +# include #endif #ifndef OPENSSL_NO_DSA -#include +# include #endif /* Minor tweak to operation: free up EVP_PKEY */ -static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) - { - if (operation == ASN1_OP_FREE_POST) - { - X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; - EVP_PKEY_free(pubkey->pkey); - } - return 1; - } +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); + } + 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_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; - X509_ALGOR *a; - ASN1_OBJECT *o; - unsigned char *s,*p = NULL; - int i; - - if (x == NULL) return(0); - - if ((pk=X509_PUBKEY_new()) == NULL) goto err; - a=pk->algor; - - /* set the algorithm id */ - if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err; - ASN1_OBJECT_free(a->algorithm); - a->algorithm=o; - - /* Set the parameter list */ - if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA)) - { - if ((a->parameter == NULL) || - (a->parameter->type != V_ASN1_NULL)) - { - ASN1_TYPE_free(a->parameter); - if (!(a->parameter=ASN1_TYPE_new())) - { - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - a->parameter->type=V_ASN1_NULL; - } - } -#ifndef OPENSSL_NO_DSA - else if (pkey->type == EVP_PKEY_DSA) - { - unsigned char *pp; - DSA *dsa; - - dsa=pkey->pkey.dsa; - dsa->write_params=0; - ASN1_TYPE_free(a->parameter); - if ((i=i2d_DSAparams(dsa,NULL)) <= 0) - goto err; - if (!(p=(unsigned char *)OPENSSL_malloc(i))) - { - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - pp=p; - i2d_DSAparams(dsa,&pp); - if (!(a->parameter=ASN1_TYPE_new())) - { - OPENSSL_free(p); - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - a->parameter->type=V_ASN1_SEQUENCE; - if (!(a->parameter->value.sequence=ASN1_STRING_new())) - { - OPENSSL_free(p); - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - if (!ASN1_STRING_set(a->parameter->value.sequence,p,i)) - { - OPENSSL_free(p); - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - OPENSSL_free(p); - } -#endif -#ifndef OPENSSL_NO_EC - else if (pkey->type == EVP_PKEY_EC) - { - int nid=0; - unsigned char *pp; - EC_KEY *ec_key; - const EC_GROUP *group; - - ec_key = pkey->pkey.ec; - ASN1_TYPE_free(a->parameter); - - if ((a->parameter = ASN1_TYPE_new()) == NULL) - { - X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB); - goto err; - } - - group = EC_KEY_get0_group(ec_key); - if (EC_GROUP_get_asn1_flag(group) - && (nid = EC_GROUP_get_curve_name(group))) - { - /* just set the OID */ - a->parameter->type = V_ASN1_OBJECT; - a->parameter->value.object = OBJ_nid2obj(nid); - } - else /* explicit parameters */ - { - if ((i = i2d_ECParameters(ec_key, NULL)) == 0) - { - X509err(X509_F_X509_PUBKEY_SET, ERR_R_EC_LIB); - goto err; - } - if ((p = (unsigned char *) OPENSSL_malloc(i)) == NULL) - { - X509err(X509_F_X509_PUBKEY_SET, ERR_R_MALLOC_FAILURE); - goto err; - } - pp = p; - if (!i2d_ECParameters(ec_key, &pp)) - { - X509err(X509_F_X509_PUBKEY_SET, ERR_R_EC_LIB); - OPENSSL_free(p); - goto err; - } - a->parameter->type = V_ASN1_SEQUENCE; - if ((a->parameter->value.sequence = ASN1_STRING_new()) == NULL) - { - X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB); - OPENSSL_free(p); - goto err; - } - ASN1_STRING_set(a->parameter->value.sequence, p, i); - OPENSSL_free(p); - } - } -#endif - else if (1) - { - X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM); - goto err; - } - - if ((i=i2d_PublicKey(pkey,NULL)) <= 0) goto err; - if ((s=(unsigned char *)OPENSSL_malloc(i+1)) == NULL) - { - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - p=s; - i2d_PublicKey(pkey,&p); - if (!M_ASN1_BIT_STRING_set(pk->public_key,s,i)) - { - X509err(X509_F_X509_PUBKEY_SET,ERR_R_MALLOC_FAILURE); - goto err; - } - /* Set number of unused bits to zero */ - pk->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); - pk->public_key->flags|=ASN1_STRING_FLAG_BITS_LEFT; - - OPENSSL_free(s); - -#if 0 - CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); - pk->pkey=pkey; -#endif - - if (*x != NULL) - X509_PUBKEY_free(*x); - - *x=pk; - - return 1; -err: - if (pk != NULL) X509_PUBKEY_free(pk); - return 0; - } +{ + 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; + return 1; + + error: + X509_PUBKEY_free(pk); + return 0; +} + +EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key) +{ + EVP_PKEY *ret = NULL; + + if (key == NULL) + goto error; + + if (key->pkey != NULL) + return key->pkey; + + if (key->public_key == NULL) + goto error; + + if ((ret = EVP_PKEY_new()) == NULL) { + X509err(X509_F_X509_PUBKEY_GET0, ERR_R_MALLOC_FAILURE); + goto error; + } + + if (!EVP_PKEY_set_type(ret, OBJ_obj2nid(key->algor->algorithm))) { + X509err(X509_F_X509_PUBKEY_GET0, X509_R_UNSUPPORTED_ALGORITHM); + goto error; + } + + if (ret->ameth->pub_decode) { + if (!ret->ameth->pub_decode(ret, key)) { + X509err(X509_F_X509_PUBKEY_GET0, X509_R_PUBLIC_KEY_DECODE_ERROR); + goto error; + } + } else { + X509err(X509_F_X509_PUBKEY_GET0, X509_R_METHOD_NOT_SUPPORTED); + goto error; + } + + /* Check to see if another thread set key->pkey first */ + CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY); + if (key->pkey) { + CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); + EVP_PKEY_free(ret); + ret = key->pkey; + } else { + key->pkey = ret; + CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); + } + + return ret; + + error: + EVP_PKEY_free(ret); + return (NULL); +} EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key) - { - EVP_PKEY *ret=NULL; - long j; - int type; - const unsigned char *p; -#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) - const unsigned char *cp; - X509_ALGOR *a; -#endif - - if (key == NULL) goto err; - - if (key->pkey != NULL) - { - CRYPTO_add(&key->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); - return(key->pkey); - } - - if (key->public_key == NULL) goto err; - - type=OBJ_obj2nid(key->algor->algorithm); - if ((ret = EVP_PKEY_new()) == NULL) - { - X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE); - goto err; - } - ret->type = EVP_PKEY_type(type); - - /* the parameters must be extracted before the public key (ECDSA!) */ - -#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) - a=key->algor; -#endif - - if (0) - ; -#ifndef OPENSSL_NO_DSA - else if (ret->type == EVP_PKEY_DSA) - { - if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE)) - { - if ((ret->pkey.dsa = DSA_new()) == NULL) - { - X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE); - goto err; - } - ret->pkey.dsa->write_params=0; - cp=p=a->parameter->value.sequence->data; - j=a->parameter->value.sequence->length; - if (!d2i_DSAparams(&ret->pkey.dsa, &cp, (long)j)) - goto err; - } - ret->save_parameters=1; - } -#endif -#ifndef OPENSSL_NO_EC - else if (ret->type == EVP_PKEY_EC) - { - if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE)) - { - /* type == V_ASN1_SEQUENCE => we have explicit parameters - * (e.g. parameters in the X9_62_EC_PARAMETERS-structure ) - */ - if ((ret->pkey.ec= EC_KEY_new()) == NULL) - { - X509err(X509_F_X509_PUBKEY_GET, - ERR_R_MALLOC_FAILURE); - goto err; - } - cp = p = a->parameter->value.sequence->data; - j = a->parameter->value.sequence->length; - if (!d2i_ECParameters(&ret->pkey.ec, &cp, (long)j)) - { - X509err(X509_F_X509_PUBKEY_GET, ERR_R_EC_LIB); - goto err; - } - } - else if (a->parameter && (a->parameter->type == V_ASN1_OBJECT)) - { - /* type == V_ASN1_OBJECT => the parameters are given - * by an asn1 OID - */ - EC_KEY *ec_key; - EC_GROUP *group; - - if (ret->pkey.ec == NULL) - ret->pkey.ec = EC_KEY_new(); - ec_key = ret->pkey.ec; - if (ec_key == NULL) - goto err; - group = EC_GROUP_new_by_curve_name(OBJ_obj2nid(a->parameter->value.object)); - if (group == NULL) - goto err; - EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE); - if (EC_KEY_set_group(ec_key, group) == 0) - goto err; - EC_GROUP_free(group); - } - /* the case implicitlyCA is currently not implemented */ - ret->save_parameters = 1; - } -#endif - - p=key->public_key->data; - j=key->public_key->length; - if (!d2i_PublicKey(type, &ret, &p, (long)j)) - { - X509err(X509_F_X509_PUBKEY_GET, X509_R_ERR_ASN1_LIB); - goto err; - } - - key->pkey = ret; - CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_EVP_PKEY); - return(ret); -err: - if (ret != NULL) - EVP_PKEY_free(ret); - return(NULL); - } - -/* Now two pseudo ASN1 routines that take an EVP_PKEY structure - * and encode or decode as X509_PUBKEY +{ + 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; - xpk = d2i_X509_PUBKEY(NULL, pp, length); - if(!xpk) return NULL; - pktmp = X509_PUBKEY_get(xpk); - X509_PUBKEY_free(xpk); - if(!pktmp) return NULL; - if(a) - { - EVP_PKEY_free(*a); - *a = pktmp; - } - return pktmp; - } +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 +{ + 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; - } +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) - { - 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; - } +{ + 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; - } +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) - { - 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; - } +{ + 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); - } +{ + 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); - } +{ + 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; +}