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openssl/crypto/bn/bn_err.c
Matt Caswell 7cc18d8158 Reject negative shifts for BN_rshift and BN_lshift 
The functions BN_rshift and BN_lshift shift their arguments to the right or
left by a specified number of bits. Unpredicatable results (including
crashes) can occur if a negative number is supplied for the shift value.

Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and Filip Palian
for discovering and reporting this issue.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
2015-05-22 23:15:02 +01:00

160 lines
7.1 KiB
C
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/* crypto/bn/bn_err.c */
/* ====================================================================
* Copyright (c) 1999-2015 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 <stdio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
# define ERR_FUNC(func) ERR_PACK(ERR_LIB_BN,func,0)
# define ERR_REASON(reason) ERR_PACK(ERR_LIB_BN,0,reason)
static ERR_STRING_DATA BN_str_functs[] = {
{ERR_FUNC(BN_F_BNRAND), "BNRAND"},
{ERR_FUNC(BN_F_BN_BLINDING_CONVERT_EX), "BN_BLINDING_convert_ex"},
{ERR_FUNC(BN_F_BN_BLINDING_CREATE_PARAM), "BN_BLINDING_create_param"},
{ERR_FUNC(BN_F_BN_BLINDING_INVERT_EX), "BN_BLINDING_invert_ex"},
{ERR_FUNC(BN_F_BN_BLINDING_NEW), "BN_BLINDING_new"},
{ERR_FUNC(BN_F_BN_BLINDING_UPDATE), "BN_BLINDING_update"},
{ERR_FUNC(BN_F_BN_BN2DEC), "BN_bn2dec"},
{ERR_FUNC(BN_F_BN_BN2HEX), "BN_bn2hex"},
{ERR_FUNC(BN_F_BN_COMPUTE_WNAF), "bn_compute_wNAF"},
{ERR_FUNC(BN_F_BN_CTX_GET), "BN_CTX_get"},
{ERR_FUNC(BN_F_BN_CTX_NEW), "BN_CTX_new"},
{ERR_FUNC(BN_F_BN_CTX_START), "BN_CTX_start"},
{ERR_FUNC(BN_F_BN_DIV), "BN_div"},
{ERR_FUNC(BN_F_BN_DIV_NO_BRANCH), "BN_div_no_branch"},
{ERR_FUNC(BN_F_BN_DIV_RECP), "BN_div_recp"},
{ERR_FUNC(BN_F_BN_EXP), "BN_exp"},
{ERR_FUNC(BN_F_BN_EXPAND2), "bn_expand2"},
{ERR_FUNC(BN_F_BN_EXPAND_INTERNAL), "BN_EXPAND_INTERNAL"},
{ERR_FUNC(BN_F_BN_GENCB_NEW), "BN_GENCB_new"},
{ERR_FUNC(BN_F_BN_GENERATE_DSA_NONCE), "BN_generate_dsa_nonce"},
{ERR_FUNC(BN_F_BN_GENERATE_PRIME_EX), "BN_generate_prime_ex"},
{ERR_FUNC(BN_F_BN_GF2M_MOD), "BN_GF2m_mod"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_EXP), "BN_GF2m_mod_exp"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_MUL), "BN_GF2m_mod_mul"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SOLVE_QUAD), "BN_GF2m_mod_solve_quad"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR), "BN_GF2m_mod_solve_quad_arr"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SQR), "BN_GF2m_mod_sqr"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SQRT), "BN_GF2m_mod_sqrt"},
{ERR_FUNC(BN_F_BN_LSHIFT), "BN_lshift"},
{ERR_FUNC(BN_F_BN_MOD_EXP2_MONT), "BN_mod_exp2_mont"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT), "BN_mod_exp_mont"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT_CONSTTIME), "BN_mod_exp_mont_consttime"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT_WORD), "BN_mod_exp_mont_word"},
{ERR_FUNC(BN_F_BN_MOD_EXP_RECP), "BN_mod_exp_recp"},
{ERR_FUNC(BN_F_BN_MOD_EXP_SIMPLE), "BN_mod_exp_simple"},
{ERR_FUNC(BN_F_BN_MOD_INVERSE), "BN_mod_inverse"},
{ERR_FUNC(BN_F_BN_MOD_INVERSE_NO_BRANCH), "BN_mod_inverse_no_branch"},
{ERR_FUNC(BN_F_BN_MOD_LSHIFT_QUICK), "BN_mod_lshift_quick"},
{ERR_FUNC(BN_F_BN_MOD_MUL_RECIPROCAL), "BN_mod_mul_reciprocal"},
{ERR_FUNC(BN_F_BN_MOD_SQRT), "BN_mod_sqrt"},
{ERR_FUNC(BN_F_BN_MPI2BN), "BN_mpi2bn"},
{ERR_FUNC(BN_F_BN_NEW), "BN_new"},
{ERR_FUNC(BN_F_BN_RAND), "BN_rand"},
{ERR_FUNC(BN_F_BN_RAND_RANGE), "BN_rand_range"},
{ERR_FUNC(BN_F_BN_RSHIFT), "BN_rshift"},
{ERR_FUNC(BN_F_BN_SET_WORDS), "bn_set_words"},
{ERR_FUNC(BN_F_BN_USUB), "BN_usub"},
{0, NULL}
};
static ERR_STRING_DATA BN_str_reasons[] = {
{ERR_REASON(BN_R_ARG2_LT_ARG3), "arg2 lt arg3"},
{ERR_REASON(BN_R_BAD_RECIPROCAL), "bad reciprocal"},
{ERR_REASON(BN_R_BIGNUM_TOO_LONG), "bignum too long"},
{ERR_REASON(BN_R_BITS_TOO_SMALL), "bits too small"},
{ERR_REASON(BN_R_CALLED_WITH_EVEN_MODULUS), "called with even modulus"},
{ERR_REASON(BN_R_DIV_BY_ZERO), "div by zero"},
{ERR_REASON(BN_R_ENCODING_ERROR), "encoding error"},
{ERR_REASON(BN_R_EXPAND_ON_STATIC_BIGNUM_DATA),
"expand on static bignum data"},
{ERR_REASON(BN_R_INPUT_NOT_REDUCED), "input not reduced"},
{ERR_REASON(BN_R_INVALID_LENGTH), "invalid length"},
{ERR_REASON(BN_R_INVALID_RANGE), "invalid range"},
{ERR_REASON(BN_R_INVALID_SHIFT), "invalid shift"},
{ERR_REASON(BN_R_NOT_A_SQUARE), "not a square"},
{ERR_REASON(BN_R_NOT_INITIALIZED), "not initialized"},
{ERR_REASON(BN_R_NO_INVERSE), "no inverse"},
{ERR_REASON(BN_R_NO_SOLUTION), "no solution"},
{ERR_REASON(BN_R_PRIVATE_KEY_TOO_LARGE), "private key too large"},
{ERR_REASON(BN_R_P_IS_NOT_PRIME), "p is not prime"},
{ERR_REASON(BN_R_TOO_MANY_ITERATIONS), "too many iterations"},
{ERR_REASON(BN_R_TOO_MANY_TEMPORARY_VARIABLES),
"too many temporary variables"},
{0, NULL}
};
#endif
void ERR_load_BN_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(BN_str_functs[0].error) == NULL) {
ERR_load_strings(0, BN_str_functs);
ERR_load_strings(0, BN_str_reasons);
}
#endif
}
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