ssl_rsa.c

来自「一个用于点对点传输加密的工具包源码」· C语言 代码 · 共 816 行 · 第 1/2 页

		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	return(ssl_set_cert(ctx->cert, x));
	}

static int ssl_set_cert(CERT *c, X509 *x)
	{
	EVP_PKEY *pkey;
	int i,ok=0,bad=0;

	pkey=X509_get_pubkey(x);
	if (pkey == NULL)
		{
		SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
		return(0);
		}

	i=ssl_cert_type(x,pkey);
	if (i < 0)
		{
		SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
		EVP_PKEY_free(pkey);
		return(0);
		}

	if (c->pkeys[i].privatekey != NULL)
		{
		EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
		ERR_clear_error();

#ifndef NO_RSA
		/* Don't check the public/private key, this is mostly
		 * for smart cards. */
		if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
			(RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
			 RSA_METHOD_FLAG_NO_CHECK))
			 ok=1;
		else
#endif
		{
		if (!X509_check_private_key(x,c->pkeys[i].privatekey))
			{
			if ((i == SSL_PKEY_DH_RSA) || (i == SSL_PKEY_DH_DSA))
				{
				i=(i == SSL_PKEY_DH_RSA)?
					SSL_PKEY_DH_DSA:SSL_PKEY_DH_RSA;

				if (c->pkeys[i].privatekey == NULL)
					ok=1;
				else
					{
					if (!X509_check_private_key(x,
						c->pkeys[i].privatekey))
						bad=1;
					else
						ok=1;
					}
				}
			else
				bad=1;
			}
		else
			ok=1;
		} /* NO_RSA */
		}
	else
		ok=1;

	EVP_PKEY_free(pkey);
	if (bad)
		{
		EVP_PKEY_free(c->pkeys[i].privatekey);
		c->pkeys[i].privatekey=NULL;
		}

	if (c->pkeys[i].x509 != NULL)
		X509_free(c->pkeys[i].x509);
	CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
	c->pkeys[i].x509=x;
	c->key= &(c->pkeys[i]);

	c->valid=0;
	return(1);
	}

#ifndef NO_STDIO
int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
	{
	int j;
	BIO *in;
	int ret=0;
	X509 *x=NULL;

	in=BIO_new(BIO_s_file_internal());
	if (in == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
		goto end;
		}

	if (BIO_read_filename(in,file) <= 0)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
		goto end;
		}
	if (type == SSL_FILETYPE_ASN1)
		{
		j=ERR_R_ASN1_LIB;
		x=d2i_X509_bio(in,NULL);
		}
	else if (type == SSL_FILETYPE_PEM)
		{
		j=ERR_R_PEM_LIB;
		x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
		}
	else
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
		goto end;
		}

	if (x == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
		goto end;
		}

	ret=SSL_CTX_use_certificate(ctx,x);
end:
	if (x != NULL) X509_free(x);
	if (in != NULL) BIO_free(in);
	return(ret);
	}
#endif

int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, unsigned char *d)
	{
	X509 *x;
	int ret;

	x=d2i_X509(NULL,&d,(long)len);
	if (x == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
		return(0);
		}

	ret=SSL_CTX_use_certificate(ctx,x);
	X509_free(x);
	return(ret);
	}

#ifndef NO_RSA
int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
	{
	int ret;
	EVP_PKEY *pkey;

	if (rsa == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
		return(0);
		}
	if (!ssl_cert_inst(&ctx->cert))
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	if ((pkey=EVP_PKEY_new()) == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
		return(0);
		}

	CRYPTO_add(&rsa->references,1,CRYPTO_LOCK_RSA);
	EVP_PKEY_assign_RSA(pkey,rsa);

	ret=ssl_set_pkey(ctx->cert, pkey);
	EVP_PKEY_free(pkey);
	return(ret);
	}

#ifndef NO_STDIO
int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
	{
	int j,ret=0;
	BIO *in;
	RSA *rsa=NULL;

	in=BIO_new(BIO_s_file_internal());
	if (in == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
		goto end;
		}

	if (BIO_read_filename(in,file) <= 0)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
		goto end;
		}
	if	(type == SSL_FILETYPE_ASN1)
		{
		j=ERR_R_ASN1_LIB;
		rsa=d2i_RSAPrivateKey_bio(in,NULL);
		}
	else if (type == SSL_FILETYPE_PEM)
		{
		j=ERR_R_PEM_LIB;
		rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
			ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
		}
	else
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
		goto end;
		}
	if (rsa == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
		goto end;
		}
	ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
	RSA_free(rsa);
end:
	if (in != NULL) BIO_free(in);
	return(ret);
	}
#endif

int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, unsigned char *d, long len)
	{
	int ret;
	unsigned char *p;
	RSA *rsa;

	p=d;
	if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
		return(0);
		}

	ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
	RSA_free(rsa);
	return(ret);
	}
#endif /* !NO_RSA */

int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
	{
	if (pkey == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
		return(0);
		}
	if (!ssl_cert_inst(&ctx->cert))
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	return(ssl_set_pkey(ctx->cert,pkey));
	}

#ifndef NO_STDIO
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
	{
	int j,ret=0;
	BIO *in;
	EVP_PKEY *pkey=NULL;

	in=BIO_new(BIO_s_file_internal());
	if (in == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
		goto end;
		}

	if (BIO_read_filename(in,file) <= 0)
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
		goto end;
		}
	if (type == SSL_FILETYPE_PEM)
		{
		j=ERR_R_PEM_LIB;
		pkey=PEM_read_bio_PrivateKey(in,NULL,
			ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
		}
	else
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
		goto end;
		}
	if (pkey == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
		goto end;
		}
	ret=SSL_CTX_use_PrivateKey(ctx,pkey);
	EVP_PKEY_free(pkey);
end:
	if (in != NULL) BIO_free(in);
	return(ret);
	}
#endif

int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, unsigned char *d,
	     long len)
	{
	int ret;
	unsigned char *p;
	EVP_PKEY *pkey;

	p=d;
	if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
		return(0);
		}

	ret=SSL_CTX_use_PrivateKey(ctx,pkey);
	EVP_PKEY_free(pkey);
	return(ret);
	}


#ifndef NO_STDIO
/* Read a file that contains our certificate in "PEM" format,
 * possibly followed by a sequence of CA certificates that should be
 * sent to the peer in the Certificate message.
 */
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
	{
	BIO *in;
	int ret=0;
	X509 *x=NULL;

	in=BIO_new(BIO_s_file_internal());
	if (in == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
		goto end;
		}

	if (BIO_read_filename(in,file) <= 0)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
		goto end;
		}

	x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
	if (x == NULL)
		{
		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
		goto end;
		}

	ret=SSL_CTX_use_certificate(ctx,x);
	if (ERR_peek_error() != 0)
		ret = 0;  /* Key/certificate mismatch doesn't imply ret==0 ... */
	if (ret)
		{
		/* If we could set up our certificate, now proceed to
		 * the CA certificates.
		 */
		X509 *ca;
		int r;
		unsigned long err;
		
		if (ctx->extra_certs != NULL) 
			{
			sk_X509_pop_free(ctx->extra_certs, X509_free);
			ctx->extra_certs = NULL;
			}

		while ((ca = PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata))
			!= NULL)
			{
			r = SSL_CTX_add_extra_chain_cert(ctx, ca);
			if (!r) 
				{
				X509_free(ca);
				ret = 0;
				goto end;
				}
			/* Note that we must not free r if it was successfully
			 * added to the chain (while we must free the main
			 * certificate, since its reference count is increased
			 * by SSL_CTX_use_certificate). */
			}
		/* When the while loop ends, it's usually just EOF. */
		err = ERR_peek_error();
		if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
			(void) ERR_get_error();
		else 
			ret = 0; /* some real error */
		}

end:
	if (x != NULL) X509_free(x);
	if (in != NULL) BIO_free(in);
	return(ret);
	}
#endif