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C++ d2i_DSAparams函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中d2i_DSAparams函数的典型用法代码示例。如果您正苦于以下问题：C++ d2i_DSAparams函数的具体用法？C++ d2i_DSAparams怎么用？C++ d2i_DSAparams使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了d2i_DSAparams函数的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: dsa_pub_decode

static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
{
    const unsigned char *p, *pm;
    int pklen, pmlen;
    int ptype;
    void *pval;
    ASN1_STRING *pstr;
    X509_ALGOR *palg;
    ASN1_INTEGER *public_key = NULL;

    DSA *dsa = NULL;

    if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
        return 0;
    X509_ALGOR_get0(NULL, &ptype, &pval, palg);

    if (ptype == V_ASN1_SEQUENCE) {
        pstr = pval;
        pm = pstr->data;
        pmlen = pstr->length;

        if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) {
            DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
            goto err;
        }

    } else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) {
        if (!(dsa = DSA_new())) {
            DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE);
            goto err;
        }
    } else {
        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR);
        goto err;
    }

    if (!(public_key = d2i_ASN1_INTEGER(NULL, &p, pklen))) {
        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
        goto err;
    }

    if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) {
        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR);
        goto err;
    }

    ASN1_INTEGER_free(public_key);
    EVP_PKEY_assign_DSA(pkey, dsa);
    return 1;

 err:
    if (public_key)
        ASN1_INTEGER_free(public_key);
    if (dsa)
        DSA_free(dsa);
    return 0;

}
开发者ID:1Project，项目名称:SafeBoardMessenger，代码行数:58，代码来源:dsa_ameth.c


示例2: dsa_pub_decode

static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) {
  const uint8_t *p, *pm;
  int pklen, pmlen;
  int ptype;
  void *pval;
  ASN1_STRING *pstr;
  X509_ALGOR *palg;
  ASN1_INTEGER *public_key = NULL;

  DSA *dsa = NULL;

  if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) {
    return 0;
  }
  X509_ALGOR_get0(NULL, &ptype, &pval, palg);

  if (ptype == V_ASN1_SEQUENCE) {
    pstr = pval;
    pm = pstr->data;
    pmlen = pstr->length;

    dsa = d2i_DSAparams(NULL, &pm, pmlen);
    if (dsa == NULL) {
      OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR);
      goto err;
    }
  } else if (ptype == V_ASN1_NULL || ptype == V_ASN1_UNDEF) {
    dsa = DSA_new();
    if (dsa == NULL) {
      OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
      goto err;
    }
  } else {
    OPENSSL_PUT_ERROR(EVP, EVP_R_PARAMETER_ENCODING_ERROR);
    goto err;
  }

  public_key = d2i_ASN1_INTEGER(NULL, &p, pklen);
  if (public_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR);
    goto err;
  }

  dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL);
  if (dsa->pub_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_BN_DECODE_ERROR);
    goto err;
  }

  ASN1_INTEGER_free(public_key);
  EVP_PKEY_assign_DSA(pkey, dsa);
  return 1;

err:
  ASN1_INTEGER_free(public_key);
  DSA_free(dsa);
  return 0;
}
开发者ID:bheesham，项目名称:boringssl，代码行数:58，代码来源:p_dsa_asn1.c


示例3: dsa_param_decode

static int dsa_param_decode(EVP_PKEY *pkey, const uint8_t **pder, int derlen) {
  DSA *dsa;
  dsa = d2i_DSAparams(NULL, pder, derlen);
  if (dsa == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_R_DSA_LIB);
    return 0;
  }
  EVP_PKEY_assign_DSA(pkey, dsa);
  return 1;
}
开发者ID:bheesham，项目名称:boringssl，代码行数:10，代码来源:p_dsa_asn1.c


示例4: dsa_param_decode

static int dsa_param_decode(EVP_PKEY *pkey,
                            const unsigned char **pder, int derlen)
{
    DSA *dsa;
    if (!(dsa = d2i_DSAparams(NULL, pder, derlen))) {
        DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB);
        return 0;
    }
    EVP_PKEY_assign_DSA(pkey, dsa);
    return 1;
}
开发者ID:1Project，项目名称:SafeBoardMessenger，代码行数:11，代码来源:dsa_ameth.c


示例5: CRYPTO_add

EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
	{
	EVP_PKEY *ret=NULL;
	long j;
	int type;
	unsigned char *p;
#ifndef OPENSSL_NO_DSA
	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);
	p=key->public_key->data;
        j=key->public_key->length;
        if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL)
		{
		X509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB);
		goto err;
		}
	ret->save_parameters=0;

#ifndef OPENSSL_NO_DSA
	a=key->algor;
	if (ret->type == EVP_PKEY_DSA)
		{
		if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
			{
			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
	key->pkey=ret;
	CRYPTO_add(&ret->references,1,CRYPTO_LOCK_EVP_PKEY);
	return(ret);
err:
	if (ret != NULL)
		EVP_PKEY_free(ret);
	return(NULL);
	}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:54，代码来源:x_pubkey.c


示例6: X509_ALGOR_get0

static DSA *X509_ALGOR_get1_DSA(X509_ALGOR *algor)
{
	DSA *dsa = NULL;
	int ptype;
	void *pval;
	ASN1_OCTET_STRING *pstr;
	const unsigned char *p;	

	X509_ALGOR_get0(NULL, &ptype, &pval, algor);
	if (ptype != V_ASN1_SEQUENCE) {
		CPKerr(CPK_F_X509_ALGOR_GET1_DSA, CPK_R_BAD_DATA);
		return NULL;
	}
	pstr = (ASN1_OCTET_STRING *)pval;
	p = pstr->data;
	if (!(dsa = d2i_DSAparams(NULL, &p, pstr->length))) {
		CPKerr(CPK_F_X509_ALGOR_GET1_DSA, ERR_R_DSA_LIB);
		return NULL;
	}
	return dsa;
}
开发者ID:LiTianjue，项目名称:GmSSL，代码行数:21，代码来源:cpk_lib.c


示例7: CRYPTO_add

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 */
//.........这里部分代码省略.........
开发者ID:hackshields，项目名称:antivirus，代码行数:101，代码来源:x_pubkey.c


示例8: STACK_OF


//.........这里部分代码省略.........
         */

        t1 = sk_ASN1_TYPE_value(ndsa, 0);
        t2 = sk_ASN1_TYPE_value(ndsa, 1);
        if(t1->type == V_ASN1_SEQUENCE) {
      p8->broken = PKCS8_EMBEDDED_PARAM;
      param = t1;
        } else if(a->parameter->type == V_ASN1_SEQUENCE) {
      p8->broken = PKCS8_NS_DB;
      param = a->parameter;
        } else {
      EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
      goto dsaerr;
        }

        if(t2->type != V_ASN1_INTEGER) {
      EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
      goto dsaerr;
        }
        privkey = t2->value.integer;
    } else {
      if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
        EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
        goto dsaerr;
      }
      param = p8->pkeyalg->parameter;
    }
    if (!param || (param->type != V_ASN1_SEQUENCE)) {
      EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
      goto dsaerr;
    }
    cp = p = param->value.sequence->data;
    plen = param->value.sequence->length;
    if (!(dsa = d2i_DSAparams (NULL, &cp, plen))) {
      EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
      goto dsaerr;
    }
    /* We have parameters now set private key */
    if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
      EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
      goto dsaerr;
    }
    /* Calculate public key (ouch!) */
    if (!(dsa->pub_key = BN_new())) {
      EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
      goto dsaerr;
    }
    if (!(ctx = BN_CTX_new())) {
      EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
      goto dsaerr;
    }
      
    if (!BN_mod_exp(dsa->pub_key, dsa->g,
             dsa->priv_key, dsa->p, ctx)) {
      
      EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
      goto dsaerr;
    }

    EVP_PKEY_assign_DSA(pkey, dsa);
    BN_CTX_free (ctx);
    if(ndsa) sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
    else ASN1_INTEGER_free(privkey);
    break;
    dsaerr:
    BN_CTX_free (ctx);
开发者ID:yyyyyao，项目名称:Slicer3-lib-mirrors，代码行数:67，代码来源:evp_pkey.c


示例9: dsa_priv_decode

static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
{
    const unsigned char *p, *pm;
    int pklen, pmlen;
    int ptype;
    void *pval;
    ASN1_STRING *pstr;
    X509_ALGOR *palg;
    ASN1_INTEGER *privkey = NULL;
    BN_CTX *ctx = NULL;

    STACK_OF(ASN1_TYPE) *ndsa = NULL;
    DSA *dsa = NULL;

    if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
        return 0;
    X509_ALGOR_get0(NULL, &ptype, &pval, palg);

    /* Check for broken DSA PKCS#8, UGH! */
    if (*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED))
    {
        ASN1_TYPE *t1, *t2;
        if(!(ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen)))
            goto decerr;
        if (sk_ASN1_TYPE_num(ndsa) != 2)
            goto decerr;
        /* Handle Two broken types:
        	 * SEQUENCE {parameters, priv_key}
         * SEQUENCE {pub_key, priv_key}
         */

        t1 = sk_ASN1_TYPE_value(ndsa, 0);
        t2 = sk_ASN1_TYPE_value(ndsa, 1);
        if (t1->type == V_ASN1_SEQUENCE)
        {
            p8->broken = PKCS8_EMBEDDED_PARAM;
            pval = t1->value.ptr;
        }
        else if (ptype == V_ASN1_SEQUENCE)
            p8->broken = PKCS8_NS_DB;
        else
            goto decerr;

        if (t2->type != V_ASN1_INTEGER)
            goto decerr;

        privkey = t2->value.integer;
    }
    else
    {
        const unsigned char *q = p;
        if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen)))
            goto decerr;
        if (privkey->type == V_ASN1_NEG_INTEGER)
        {
            p8->broken = PKCS8_NEG_PRIVKEY;
            ASN1_INTEGER_free(privkey);
            if (!(privkey=d2i_ASN1_UINTEGER(NULL, &q, pklen)))
                goto decerr;
        }
        if (ptype != V_ASN1_SEQUENCE)
            goto decerr;
    }

    pstr = pval;
    pm = pstr->data;
    pmlen = pstr->length;
    if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen)))
        goto decerr;
    /* We have parameters now set private key */
    if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
    {
        DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR);
        goto dsaerr;
    }
    /* Calculate public key */
    if (!(dsa->pub_key = BN_new()))
    {
        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
        goto dsaerr;
    }
    if (!(ctx = BN_CTX_new()))
    {
        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
        goto dsaerr;
    }

    if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx))
    {
        DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR);
        goto dsaerr;
    }

    EVP_PKEY_assign_DSA(pkey, dsa);
    BN_CTX_free (ctx);
    if(ndsa)
        sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
    else
        ASN1_INTEGER_free(privkey);

//.........这里部分代码省略.........
开发者ID:Ashod，项目名称:openssl，代码行数:101，代码来源:dsa_ameth.c


示例10: STACK_OF

EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
{
	EVP_PKEY *pkey = NULL;
#ifndef NO_RSA
	RSA *rsa = NULL;
#endif
#ifndef NO_DSA
	DSA *dsa = NULL;
	ASN1_INTEGER *privkey;
	ASN1_TYPE *t1, *t2, *param = NULL;
	STACK_OF(ASN1_TYPE) *ndsa = NULL;
	BN_CTX *ctx = NULL;
	int plen;
#endif
	X509_ALGOR *a;
	unsigned char *p;
	int pkeylen;
	char obj_tmp[80];

	if(p8->pkey->type == V_ASN1_OCTET_STRING) {
		p8->broken = PKCS8_OK;
		p = p8->pkey->value.octet_string->data;
		pkeylen = p8->pkey->value.octet_string->length;
	} else {
		p8->broken = PKCS8_NO_OCTET;
		p = p8->pkey->value.sequence->data;
		pkeylen = p8->pkey->value.sequence->length;
	}
	if (!(pkey = EVP_PKEY_new())) {
		EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	a = p8->pkeyalg;
	switch (OBJ_obj2nid(a->algorithm))
	{
#ifndef NO_RSA
		case NID_rsaEncryption:
		if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			return NULL;
		}
		EVP_PKEY_assign_RSA (pkey, rsa);
		break;
#endif
#ifndef NO_DSA
		case NID_dsa:
		/* PKCS#8 DSA is weird: you just get a private key integer
	         * and parameters in the AlgorithmIdentifier the pubkey must
		 * be recalculated.
		 */
	
		/* Check for broken DSA PKCS#8, UGH! */
		if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
		    if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen, 
							  d2i_ASN1_TYPE,
							  ASN1_TYPE_free))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    /* Handle Two broken types:
		     * SEQUENCE {parameters, priv_key}
		     * SEQUENCE {pub_key, priv_key}
		     */

		    t1 = sk_ASN1_TYPE_value(ndsa, 0);
		    t2 = sk_ASN1_TYPE_value(ndsa, 1);
		    if(t1->type == V_ASN1_SEQUENCE) {
			p8->broken = PKCS8_EMBEDDED_PARAM;
			param = t1;
		    } else if(a->parameter->type == V_ASN1_SEQUENCE) {
			p8->broken = PKCS8_NS_DB;
			param = a->parameter;
		    } else {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }

		    if(t2->type != V_ASN1_INTEGER) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    privkey = t2->value.integer;
		} else {
			if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
				EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
				goto dsaerr;
			}
			param = p8->pkeyalg->parameter;
		}
		if (!param || (param->type != V_ASN1_SEQUENCE)) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		}
		p = param->value.sequence->data;
		plen = param->value.sequence->length;
		if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
//.........这里部分代码省略.........
开发者ID:jhbsz，项目名称:actiontec_opensource_mi424wr-rev-acd-56-0-10-14-4，代码行数:101，代码来源:evp_pkey.c


示例11: dsa_priv_decode

static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) {
  const uint8_t *p, *pm;
  int pklen, pmlen;
  int ptype;
  void *pval;
  ASN1_STRING *pstr;
  X509_ALGOR *palg;
  ASN1_INTEGER *privkey = NULL;
  BN_CTX *ctx = NULL;

  /* In PKCS#8 DSA: you just get a private key integer and parameters in the
   * AlgorithmIdentifier the pubkey must be recalculated. */

  STACK_OF(ASN1_TYPE) *ndsa = NULL;
  DSA *dsa = NULL;

  if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) {
    return 0;
  }
  X509_ALGOR_get0(NULL, &ptype, &pval, palg);

  /* Check for broken DSA PKCS#8, UGH! */
  if (*p == (V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED)) {
    ASN1_TYPE *t1, *t2;
    ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen);
    if (ndsa == NULL) {
      goto decerr;
    }
    if (sk_ASN1_TYPE_num(ndsa) != 2) {
      goto decerr;
    }

    /* Handle Two broken types:
     * SEQUENCE {parameters, priv_key}
     * SEQUENCE {pub_key, priv_key}. */

    t1 = sk_ASN1_TYPE_value(ndsa, 0);
    t2 = sk_ASN1_TYPE_value(ndsa, 1);
    if (t1->type == V_ASN1_SEQUENCE) {
      p8->broken = PKCS8_EMBEDDED_PARAM;
      pval = t1->value.ptr;
    } else if (ptype == V_ASN1_SEQUENCE) {
      p8->broken = PKCS8_NS_DB;
    } else {
      goto decerr;
    }

    if (t2->type != V_ASN1_INTEGER) {
      goto decerr;
    }

    privkey = t2->value.integer;
  } else {
    const uint8_t *q = p;
    privkey = d2i_ASN1_INTEGER(NULL, &p, pklen);
    if (privkey == NULL) {
      goto decerr;
    }
    if (privkey->type == V_ASN1_NEG_INTEGER) {
      p8->broken = PKCS8_NEG_PRIVKEY;
      ASN1_INTEGER_free(privkey);
      privkey = d2i_ASN1_UINTEGER(NULL, &q, pklen);
      if (privkey == NULL) {
        goto decerr;
      }
    }
    if (ptype != V_ASN1_SEQUENCE) {
      goto decerr;
    }
  }

  pstr = pval;
  pm = pstr->data;
  pmlen = pstr->length;
  dsa = d2i_DSAparams(NULL, &pm, pmlen);
  if (dsa == NULL) {
    goto decerr;
  }
  /* We have parameters. Now set private key */
  dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL);
  if (dsa->priv_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_LIB_BN);
    goto dsaerr;
  }
  /* Calculate public key. */
  dsa->pub_key = BN_new();
  if (dsa->pub_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
    goto dsaerr;
  }
  ctx = BN_CTX_new();
  if (ctx == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
    goto dsaerr;
  }

  if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) {
    OPENSSL_PUT_ERROR(EVP, ERR_LIB_BN);
    goto dsaerr;
  }
//.........这里部分代码省略.........
开发者ID:bheesham，项目名称:boringssl，代码行数:101，代码来源:p_dsa_asn1.c


示例12: dsa_priv_decode

static int dsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
{
    const unsigned char *p, *pm;
    int pklen, pmlen;
    int ptype;
    const void *pval;
    const ASN1_STRING *pstr;
    const X509_ALGOR *palg;
    ASN1_INTEGER *privkey = NULL;
    BN_CTX *ctx = NULL;

    DSA *dsa = NULL;

    int ret = 0;

    if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
        return 0;
    X509_ALGOR_get0(NULL, &ptype, &pval, palg);

    if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
        goto decerr;
    if (privkey->type == V_ASN1_NEG_INTEGER || ptype != V_ASN1_SEQUENCE)
        goto decerr;

    pstr = pval;
    pm = pstr->data;
    pmlen = pstr->length;
    if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL)
        goto decerr;
    /* We have parameters now set private key */
    if ((dsa->priv_key = BN_secure_new()) == NULL
        || !ASN1_INTEGER_to_BN(privkey, dsa->priv_key)) {
        DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
        goto dsaerr;
    }
    /* Calculate public key */
    if ((dsa->pub_key = BN_new()) == NULL) {
        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
        goto dsaerr;
    }
    if ((ctx = BN_CTX_new()) == NULL) {
        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
        goto dsaerr;
    }

    BN_set_flags(dsa->priv_key, BN_FLG_CONSTTIME);
    if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) {
        DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
        goto dsaerr;
    }

    EVP_PKEY_assign_DSA(pkey, dsa);

    ret = 1;
    goto done;

 decerr:
    DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_DECODE_ERROR);
 dsaerr:
    DSA_free(dsa);
 done:
    BN_CTX_free(ctx);
    ASN1_STRING_clear_free(privkey);
    return ret;
}
开发者ID:akamai，项目名称:openssl，代码行数:65，代码来源:dsa_ameth.c


示例13: dsa_priv_decode

static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) {
  const uint8_t *p, *pm;
  int pklen, pmlen;
  int ptype;
  void *pval;
  ASN1_STRING *pstr;
  X509_ALGOR *palg;
  ASN1_INTEGER *privkey = NULL;
  BN_CTX *ctx = NULL;

  /* In PKCS#8 DSA: you just get a private key integer and parameters in the
   * AlgorithmIdentifier the pubkey must be recalculated. */

  DSA *dsa = NULL;

  if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) {
    return 0;
  }
  privkey = d2i_ASN1_INTEGER(NULL, &p, pklen);
  if (privkey == NULL || privkey->type == V_ASN1_NEG_INTEGER) {
    goto decerr;
  }

  X509_ALGOR_get0(NULL, &ptype, &pval, palg);
  if (ptype != V_ASN1_SEQUENCE) {
    goto decerr;
  }
  pstr = pval;
  pm = pstr->data;
  pmlen = pstr->length;
  dsa = d2i_DSAparams(NULL, &pm, pmlen);
  if (dsa == NULL) {
    goto decerr;
  }
  /* We have parameters. Now set private key */
  dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL);
  if (dsa->priv_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_LIB_BN);
    goto dsaerr;
  }
  /* Calculate public key. */
  dsa->pub_key = BN_new();
  if (dsa->pub_key == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
    goto dsaerr;
  }
  ctx = BN_CTX_new();
  if (ctx == NULL) {
    OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
    goto dsaerr;
  }

  if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) {
    OPENSSL_PUT_ERROR(EVP, ERR_LIB_BN);
    goto dsaerr;
  }

  EVP_PKEY_assign_DSA(pkey, dsa);
  BN_CTX_free(ctx);
  ASN1_INTEGER_free(privkey);

  return 1;

decerr:
  OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR);

dsaerr:
  BN_CTX_free(ctx);
  ASN1_INTEGER_free(privkey);
  DSA_free(dsa);
  return 0;
}
开发者ID:Crawping，项目名称:chromium_extract，代码行数:72，代码来源:p_dsa_asn1.c



注：本文中的d2i_DSAparams函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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