/* e_4758cca_err.c */ /* ==================================================================== * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ /* NOTE: this file was auto generated by the mkerr.pl script: any changes * made to it will be overwritten when the script next updates this file, * only reason strings will be preserved. */ #include #include #include "e_4758cca_err.h" /* BEGIN ERROR CODES */ #ifndef OPENSSL_NO_ERR #define ERR_FUNC(func) ERR_PACK(0,func,0) #define ERR_REASON(reason) ERR_PACK(0,0,reason) static ERR_STRING_DATA CCA4758_str_functs[]= { {ERR_FUNC(CCA4758_F_CCA_RSA_SIGN), "CCA_RSA_SIGN"}, {ERR_FUNC(CCA4758_F_CCA_RSA_VERIFY), "CCA_RSA_VERIFY"}, {ERR_FUNC(CCA4758_F_IBM_4758_CCA_CTRL), "IBM_4758_CCA_CTRL"}, {ERR_FUNC(CCA4758_F_IBM_4758_CCA_FINISH), "IBM_4758_CCA_FINISH"}, {ERR_FUNC(CCA4758_F_IBM_4758_CCA_INIT), "IBM_4758_CCA_INIT"}, {ERR_FUNC(CCA4758_F_IBM_4758_LOAD_PRIVKEY), "IBM_4758_LOAD_PRIVKEY"}, {ERR_FUNC(CCA4758_F_IBM_4758_LOAD_PUBKEY), "IBM_4758_LOAD_PUBKEY"}, {0,NULL} }; static ERR_STRING_DATA CCA4758_str_reasons[]= { {ERR_REASON(CCA4758_R_ALREADY_LOADED) ,"already loaded"}, {ERR_REASON(CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD),"asn1 oid unknown for md"}, {ERR_REASON(CCA4758_R_COMMAND_NOT_IMPLEMENTED),"command not implemented"}, {ERR_REASON(CCA4758_R_DSO_FAILURE) ,"dso failure"}, {ERR_REASON(CCA4758_R_FAILED_LOADING_PRIVATE_KEY),"failed loading private key"}, {ERR_REASON(CCA4758_R_FAILED_LOADING_PUBLIC_KEY),"failed loading public key"}, {ERR_REASON(CCA4758_R_NOT_LOADED) ,"not loaded"}, {ERR_REASON(CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL),"size too large or too small"}, {ERR_REASON(CCA4758_R_UNIT_FAILURE) ,"unit failure"}, {ERR_REASON(CCA4758_R_UNKNOWN_ALGORITHM_TYPE),"unknown algorithm type"}, {0,NULL} }; #endif #ifdef CCA4758_LIB_NAME static ERR_STRING_DATA CCA4758_lib_name[]= { {0 ,CCA4758_LIB_NAME}, {0,NULL} }; #endif static int CCA4758_lib_error_code=0; static int CCA4758_error_init=1; static void ERR_load_CCA4758_strings(void) { if (CCA4758_lib_error_code == 0) CCA4758_lib_error_code=ERR_get_next_error_library(); if (CCA4758_error_init) { CCA4758_error_init=0; #ifndef OPENSSL_NO_ER
=pod

=head1 NAME

RSA_blinding_on, RSA_blinding_off - protect the RSA operation from timing attacks

=head1 SYNOPSIS

 #include <openssl/rsa.h>

 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);

 void RSA_blinding_off(RSA *rsa);

=head1 DESCRIPTION

RSA is vulnerable to timing attacks. In a setup where attackers can
measure the time of RSA decryption or signature operations, blinding
must be used to protect the RSA operation from that attack.

RSA_blinding_on() turns blinding on for key B<rsa> and generates a
random blinding factor. B<ctx> is B<NULL> or a pre-allocated and
initialized B<BN_CTX>. The random number generator must be seeded
prior to calling RSA_blinding_on().

RSA_blinding_off() turns blinding off and frees the memory used for
the blinding factor.

=head1 RETURN VALUES

RSA_blinding_on() returns 1 on success, and 0 if an error occurred.

RSA_blinding_off() returns no value.

=head1 SEE ALSO

L<rsa(3)|rsa(3)>, L<rand(3)|rand(3)>

=head1 HISTORY

RSA_blinding_on() and RSA_blinding_off() appeared in SSLeay 0.9.0.

=cut
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