diff options
Diffstat (limited to 'crypto/rsa/rsa_chk.c')
| -rw-r--r-- | crypto/rsa/rsa_chk.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/crypto/rsa/rsa_chk.c b/crypto/rsa/rsa_chk.c deleted file mode 100644 index cc30e77132..0000000000 --- a/crypto/rsa/rsa_chk.c +++ /dev/null @@ -1,190 +0,0 @@ -/* crypto/rsa/rsa_chk.c -*- Mode: C; c-file-style: "eay" -*- */ -/* ==================================================================== - * Copyright (c) 1999 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. - * ==================================================================== - */ - -#include <openssl/bn.h> -#include <openssl/err.h> -#include <openssl/rsa.h> - - -int RSA_check_key(const RSA *key) - { - BIGNUM *i, *j, *k, *l, *m; - BN_CTX *ctx; - int r; - int ret=1; - - if (!key->p || !key->q || !key->n || !key->e || !key->d) - { - RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_VALUE_MISSING); - return 0; - } - - i = BN_new(); - j = BN_new(); - k = BN_new(); - l = BN_new(); - m = BN_new(); - ctx = BN_CTX_new(); - if (i == NULL || j == NULL || k == NULL || l == NULL || - m == NULL || ctx == NULL) - { - ret = -1; - RSAerr(RSA_F_RSA_CHECK_KEY, ERR_R_MALLOC_FAILURE); - goto err; - } - - /* p prime? */ - r = BN_is_prime_ex(key->p, BN_prime_checks, NULL, NULL); - if (r != 1) - { - ret = r; - if (r != 0) - goto err; - RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_P_NOT_PRIME); - } - - /* q prime? */ - r = BN_is_prime_ex(key->q, BN_prime_checks, NULL, NULL); - if (r != 1) - { - ret = r; - if (r != 0) - goto err; - RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_Q_NOT_PRIME); - } - - /* n = p*q? */ - r = BN_mul(i, key->p, key->q, ctx); - if (!r) { ret = -1; goto err; } - - if (BN_cmp(i, key->n) != 0) - { - ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_N_DOES_NOT_EQUAL_P_Q); - } - - /* d*e = 1 mod lcm(p-1,q-1)? */ - - r = BN_sub(i, key->p, BN_value_one()); - if (!r) { ret = -1; goto err; } - r = BN_sub(j, key->q, BN_value_one()); - if (!r) { ret = -1; goto err; } - - /* now compute k = lcm(i,j) */ - r = BN_mul(l, i, j, ctx); - if (!r) { ret = -1; goto err; } - r = BN_gcd(m, i, j, ctx); - if (!r) { ret = -1; goto err; } - r = BN_div(k, NULL, l, m, ctx); /* remainder is 0 */ - if (!r) { ret = -1; goto err; } - - r = BN_mod_mul(i, key->d, key->e, k, ctx); - if (!r) { ret = -1; goto err; } - - if (!BN_is_one(i)) - { - ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_D_E_NOT_CONGRUENT_TO_1); - } - - if (key->dmp1 != NULL && key->dmq1 != NULL && key->iqmp != NULL) - { - /* dmp1 = d mod (p-1)? */ - r = BN_sub(i, key->p, BN_value_one()); - if (!r) { ret = -1; goto err; } - - r = BN_mod(j, key->d, i, ctx); - if (!r) { ret = -1; goto err; } - - if (BN_cmp(j, key->dmp1) != 0) - { - ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY, - RSA_R_DMP1_NOT_CONGRUENT_TO_D); - } - - /* dmq1 = d mod (q-1)? */ - r = BN_sub(i, key->q, BN_value_one()); - if (!r) { ret = -1; goto err; } - - r = BN_mod(j, key->d, i, ctx); - if (!r) { ret = -1; goto err; } - - if (BN_cmp(j, key->dmq1) != 0) - { - ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY, - RSA_R_DMQ1_NOT_CONGRUENT_TO_D); - } - - /* iqmp = q^-1 mod p? */ - if(!BN_mod_inverse(i, key->q, key->p, ctx)) - { - ret = -1; - goto err; - } - - if (BN_cmp(i, key->iqmp) != 0) - { - ret = 0; - RSAerr(RSA_F_RSA_CHECK_KEY, - RSA_R_IQMP_NOT_INVERSE_OF_Q); - } - } - - err: - if (i != NULL) BN_free(i); - if (j != NULL) BN_free(j); - if (k != NULL) BN_free(k); - if (l != NULL) BN_free(l); - if (m != NULL) BN_free(m); - if (ctx != NULL) BN_CTX_free(ctx); - return (ret); - } |