diff options
Diffstat (limited to 'src/lib/libcrypto/ec/ec_check.c')
| -rw-r--r-- | src/lib/libcrypto/ec/ec_check.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/src/lib/libcrypto/ec/ec_check.c b/src/lib/libcrypto/ec/ec_check.c deleted file mode 100644 index 0e316b4b3f..0000000000 --- a/src/lib/libcrypto/ec/ec_check.c +++ /dev/null | |||
| @@ -1,123 +0,0 @@ | |||
| 1 | /* crypto/ec/ec_check.c */ | ||
| 2 | /* ==================================================================== | ||
| 3 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. | ||
| 4 | * | ||
| 5 | * Redistribution and use in source and binary forms, with or without | ||
| 6 | * modification, are permitted provided that the following conditions | ||
| 7 | * are met: | ||
| 8 | * | ||
| 9 | * 1. Redistributions of source code must retain the above copyright | ||
| 10 | * notice, this list of conditions and the following disclaimer. | ||
| 11 | * | ||
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer in | ||
| 14 | * the documentation and/or other materials provided with the | ||
| 15 | * distribution. | ||
| 16 | * | ||
| 17 | * 3. All advertising materials mentioning features or use of this | ||
| 18 | * software must display the following acknowledgment: | ||
| 19 | * "This product includes software developed by the OpenSSL Project | ||
| 20 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 21 | * | ||
| 22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 23 | * endorse or promote products derived from this software without | ||
| 24 | * prior written permission. For written permission, please contact | ||
| 25 | * openssl-core@openssl.org. | ||
| 26 | * | ||
| 27 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 28 | * nor may "OpenSSL" appear in their names without prior written | ||
| 29 | * permission of the OpenSSL Project. | ||
| 30 | * | ||
| 31 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 32 | * acknowledgment: | ||
| 33 | * "This product includes software developed by the OpenSSL Project | ||
| 34 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 35 | * | ||
| 36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 47 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 48 | * ==================================================================== | ||
| 49 | * | ||
| 50 | * This product includes cryptographic software written by Eric Young | ||
| 51 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 52 | * Hudson (tjh@cryptsoft.com). | ||
| 53 | * | ||
| 54 | */ | ||
| 55 | |||
| 56 | #include "ec_lcl.h" | ||
| 57 | #include <openssl/err.h> | ||
| 58 | |||
| 59 | int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx) | ||
| 60 | { | ||
| 61 | int ret = 0; | ||
| 62 | BIGNUM *order; | ||
| 63 | BN_CTX *new_ctx = NULL; | ||
| 64 | EC_POINT *point = NULL; | ||
| 65 | |||
| 66 | if (ctx == NULL) | ||
| 67 | { | ||
| 68 | ctx = new_ctx = BN_CTX_new(); | ||
| 69 | if (ctx == NULL) | ||
| 70 | { | ||
| 71 | ECerr(EC_F_EC_GROUP_CHECK, ERR_R_MALLOC_FAILURE); | ||
| 72 | goto err; | ||
| 73 | } | ||
| 74 | } | ||
| 75 | BN_CTX_start(ctx); | ||
| 76 | if ((order = BN_CTX_get(ctx)) == NULL) goto err; | ||
| 77 | |||
| 78 | /* check the discriminant */ | ||
| 79 | if (!EC_GROUP_check_discriminant(group, ctx)) | ||
| 80 | { | ||
| 81 | ECerr(EC_F_EC_GROUP_CHECK, EC_R_DISCRIMINANT_IS_ZERO); | ||
| 82 | goto err; | ||
| 83 | } | ||
| 84 | |||
| 85 | /* check the generator */ | ||
| 86 | if (group->generator == NULL) | ||
| 87 | { | ||
| 88 | ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_GENERATOR); | ||
| 89 | goto err; | ||
| 90 | } | ||
| 91 | if (!EC_POINT_is_on_curve(group, group->generator, ctx)) | ||
| 92 | { | ||
| 93 | ECerr(EC_F_EC_GROUP_CHECK, EC_R_POINT_IS_NOT_ON_CURVE); | ||
| 94 | goto err; | ||
| 95 | } | ||
| 96 | |||
| 97 | /* check the order of the generator */ | ||
| 98 | if ((point = EC_POINT_new(group)) == NULL) goto err; | ||
| 99 | if (!EC_GROUP_get_order(group, order, ctx)) goto err; | ||
| 100 | if (BN_is_zero(order)) | ||
| 101 | { | ||
| 102 | ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_ORDER); | ||
| 103 | goto err; | ||
| 104 | } | ||
| 105 | |||
| 106 | if (!EC_POINT_mul(group, point, order, NULL, NULL, ctx)) goto err; | ||
| 107 | if (!EC_POINT_is_at_infinity(group, point)) | ||
| 108 | { | ||
| 109 | ECerr(EC_F_EC_GROUP_CHECK, EC_R_INVALID_GROUP_ORDER); | ||
| 110 | goto err; | ||
| 111 | } | ||
| 112 | |||
| 113 | ret = 1; | ||
| 114 | |||
| 115 | err: | ||
| 116 | if (ctx != NULL) | ||
| 117 | BN_CTX_end(ctx); | ||
| 118 | if (new_ctx != NULL) | ||
| 119 | BN_CTX_free(new_ctx); | ||
| 120 | if (point) | ||
| 121 | EC_POINT_free(point); | ||
| 122 | return ret; | ||
| 123 | } | ||