Index: openssl/fips/rsa/fips_rsa_gen.c |
=================================================================== |
--- openssl/fips/rsa/fips_rsa_gen.c (revision 105093) |
+++ openssl/fips/rsa/fips_rsa_gen.c (working copy) |
@@ -1,310 +0,0 @@ |
-/* crypto/rsa/rsa_gen.c */ |
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
- * All rights reserved. |
- * |
- * This package is an SSL implementation written |
- * by Eric Young (eay@cryptsoft.com). |
- * The implementation was written so as to conform with Netscapes SSL. |
- * |
- * This library is free for commercial and non-commercial use as long as |
- * the following conditions are aheared to. The following conditions |
- * apply to all code found in this distribution, be it the RC4, RSA, |
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
- * included with this distribution is covered by the same copyright terms |
- * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
- * |
- * Copyright remains Eric Young's, and as such any Copyright notices in |
- * the code are not to be removed. |
- * If this package is used in a product, Eric Young should be given attribution |
- * as the author of the parts of the library used. |
- * This can be in the form of a textual message at program startup or |
- * in documentation (online or textual) provided with the package. |
- * |
- * 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 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 acknowledgement: |
- * "This product includes cryptographic software written by |
- * Eric Young (eay@cryptsoft.com)" |
- * The word 'cryptographic' can be left out if the rouines from the library |
- * being used are not cryptographic related :-). |
- * 4. If you include any Windows specific code (or a derivative thereof) from |
- * the apps directory (application code) you must include an acknowledgement: |
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
- * |
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
- * ANY EXPRESS 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 AUTHOR OR 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. |
- * |
- * The licence and distribution terms for any publically available version or |
- * derivative of this code cannot be changed. i.e. this code cannot simply be |
- * copied and put under another distribution licence |
- * [including the GNU Public Licence.] |
- */ |
- |
- |
-/* NB: these functions have been "upgraded", the deprecated versions (which are |
- * compatibility wrappers using these functions) are in rsa_depr.c. |
- * - Geoff |
- */ |
- |
-#include <stdio.h> |
-#include <time.h> |
-#include <string.h> |
-#include <openssl/crypto.h> |
-#include <openssl/bn.h> |
-#include <openssl/rsa.h> |
-#include <openssl/err.h> |
-#include <openssl/evp.h> |
-#include <openssl/fips.h> |
-#include "fips_locl.h" |
- |
-#ifdef OPENSSL_FIPS |
- |
-static int fips_rsa_pairwise_fail = 0; |
- |
-void FIPS_corrupt_rsa_keygen(void) |
- { |
- fips_rsa_pairwise_fail = 1; |
- } |
- |
-int fips_check_rsa(RSA *rsa) |
- { |
- const unsigned char tbs[] = "RSA Pairwise Check Data"; |
- unsigned char *ctbuf = NULL, *ptbuf = NULL; |
- int len, ret = 0; |
- EVP_PKEY pk; |
- pk.type = EVP_PKEY_RSA; |
- pk.pkey.rsa = rsa; |
- |
- /* Perform pairwise consistency signature test */ |
- if (!fips_pkey_signature_test(&pk, tbs, -1, |
- NULL, 0, EVP_sha1(), EVP_MD_CTX_FLAG_PAD_PKCS1, NULL) |
- || !fips_pkey_signature_test(&pk, tbs, -1, |
- NULL, 0, EVP_sha1(), EVP_MD_CTX_FLAG_PAD_X931, NULL) |
- || !fips_pkey_signature_test(&pk, tbs, -1, |
- NULL, 0, EVP_sha1(), EVP_MD_CTX_FLAG_PAD_PSS, NULL)) |
- goto err; |
- /* Now perform pairwise consistency encrypt/decrypt test */ |
- ctbuf = OPENSSL_malloc(RSA_size(rsa)); |
- if (!ctbuf) |
- goto err; |
- |
- len = RSA_public_encrypt(sizeof(tbs) - 1, tbs, ctbuf, rsa, RSA_PKCS1_PADDING); |
- if (len <= 0) |
- goto err; |
- /* Check ciphertext doesn't match plaintext */ |
- if ((len == (sizeof(tbs) - 1)) && !memcmp(tbs, ctbuf, len)) |
- goto err; |
- ptbuf = OPENSSL_malloc(RSA_size(rsa)); |
- |
- if (!ptbuf) |
- goto err; |
- len = RSA_private_decrypt(len, ctbuf, ptbuf, rsa, RSA_PKCS1_PADDING); |
- if (len != (sizeof(tbs) - 1)) |
- goto err; |
- if (memcmp(ptbuf, tbs, len)) |
- goto err; |
- |
- ret = 1; |
- |
- if (!ptbuf) |
- goto err; |
- |
- err: |
- if (ret == 0) |
- { |
- fips_set_selftest_fail(); |
- FIPSerr(FIPS_F_FIPS_CHECK_RSA,FIPS_R_PAIRWISE_TEST_FAILED); |
- } |
- |
- if (ctbuf) |
- OPENSSL_free(ctbuf); |
- if (ptbuf) |
- OPENSSL_free(ptbuf); |
- |
- return ret; |
- } |
- |
-static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb); |
- |
-/* NB: this wrapper would normally be placed in rsa_lib.c and the static |
- * implementation would probably be in rsa_eay.c. Nonetheless, is kept here so |
- * that we don't introduce a new linker dependency. Eg. any application that |
- * wasn't previously linking object code related to key-generation won't have to |
- * now just because key-generation is part of RSA_METHOD. */ |
-int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) |
- { |
- if(rsa->meth->rsa_keygen) |
- return rsa->meth->rsa_keygen(rsa, bits, e_value, cb); |
- return rsa_builtin_keygen(rsa, bits, e_value, cb); |
- } |
- |
-static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) |
- { |
- BIGNUM *r0=NULL,*r1=NULL,*r2=NULL,*r3=NULL,*tmp; |
- BIGNUM local_r0,local_d,local_p; |
- BIGNUM *pr0,*d,*p; |
- int bitsp,bitsq,ok= -1,n=0; |
- BN_CTX *ctx=NULL; |
- |
- if(FIPS_selftest_failed()) |
- { |
- FIPSerr(FIPS_F_RSA_BUILTIN_KEYGEN,FIPS_R_FIPS_SELFTEST_FAILED); |
- return 0; |
- } |
- |
- if (FIPS_mode() && (bits < OPENSSL_RSA_FIPS_MIN_MODULUS_BITS)) |
- { |
- FIPSerr(FIPS_F_RSA_BUILTIN_KEYGEN,FIPS_R_KEY_TOO_SHORT); |
- return 0; |
- } |
- |
- ctx=BN_CTX_new(); |
- if (ctx == NULL) goto err; |
- BN_CTX_start(ctx); |
- r0 = BN_CTX_get(ctx); |
- r1 = BN_CTX_get(ctx); |
- r2 = BN_CTX_get(ctx); |
- r3 = BN_CTX_get(ctx); |
- if (r3 == NULL) goto err; |
- |
- bitsp=(bits+1)/2; |
- bitsq=bits-bitsp; |
- |
- /* We need the RSA components non-NULL */ |
- if(!rsa->n && ((rsa->n=BN_new()) == NULL)) goto err; |
- if(!rsa->d && ((rsa->d=BN_new()) == NULL)) goto err; |
- if(!rsa->e && ((rsa->e=BN_new()) == NULL)) goto err; |
- if(!rsa->p && ((rsa->p=BN_new()) == NULL)) goto err; |
- if(!rsa->q && ((rsa->q=BN_new()) == NULL)) goto err; |
- if(!rsa->dmp1 && ((rsa->dmp1=BN_new()) == NULL)) goto err; |
- if(!rsa->dmq1 && ((rsa->dmq1=BN_new()) == NULL)) goto err; |
- if(!rsa->iqmp && ((rsa->iqmp=BN_new()) == NULL)) goto err; |
- |
- BN_copy(rsa->e, e_value); |
- |
- /* generate p and q */ |
- for (;;) |
- { |
- if(!BN_generate_prime_ex(rsa->p, bitsp, 0, NULL, NULL, cb)) |
- goto err; |
- if (!BN_sub(r2,rsa->p,BN_value_one())) goto err; |
- if (!BN_gcd(r1,r2,rsa->e,ctx)) goto err; |
- if (BN_is_one(r1)) break; |
- if(!BN_GENCB_call(cb, 2, n++)) |
- goto err; |
- } |
- if(!BN_GENCB_call(cb, 3, 0)) |
- goto err; |
- for (;;) |
- { |
- /* When generating ridiculously small keys, we can get stuck |
- * continually regenerating the same prime values. Check for |
- * this and bail if it happens 3 times. */ |
- unsigned int degenerate = 0; |
- do |
- { |
- if(!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb)) |
- goto err; |
- } while((BN_cmp(rsa->p, rsa->q) == 0) && (++degenerate < 3)); |
- if(degenerate == 3) |
- { |
- ok = 0; /* we set our own err */ |
- RSAerr(RSA_F_RSA_BUILTIN_KEYGEN,RSA_R_KEY_SIZE_TOO_SMALL); |
- goto err; |
- } |
- if (!BN_sub(r2,rsa->q,BN_value_one())) goto err; |
- if (!BN_gcd(r1,r2,rsa->e,ctx)) goto err; |
- if (BN_is_one(r1)) |
- break; |
- if(!BN_GENCB_call(cb, 2, n++)) |
- goto err; |
- } |
- if(!BN_GENCB_call(cb, 3, 1)) |
- goto err; |
- if (BN_cmp(rsa->p,rsa->q) < 0) |
- { |
- tmp=rsa->p; |
- rsa->p=rsa->q; |
- rsa->q=tmp; |
- } |
- |
- /* calculate n */ |
- if (!BN_mul(rsa->n,rsa->p,rsa->q,ctx)) goto err; |
- |
- /* calculate d */ |
- if (!BN_sub(r1,rsa->p,BN_value_one())) goto err; /* p-1 */ |
- if (!BN_sub(r2,rsa->q,BN_value_one())) goto err; /* q-1 */ |
- if (!BN_mul(r0,r1,r2,ctx)) goto err; /* (p-1)(q-1) */ |
- if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) |
- { |
- pr0 = &local_r0; |
- BN_with_flags(pr0, r0, BN_FLG_CONSTTIME); |
- } |
- else |
- pr0 = r0; |
- if (!BN_mod_inverse(rsa->d,rsa->e,pr0,ctx)) goto err; /* d */ |
- |
- /* set up d for correct BN_FLG_CONSTTIME flag */ |
- if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) |
- { |
- d = &local_d; |
- BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME); |
- } |
- else |
- d = rsa->d; |
- |
- /* calculate d mod (p-1) */ |
- if (!BN_mod(rsa->dmp1,d,r1,ctx)) goto err; |
- |
- /* calculate d mod (q-1) */ |
- if (!BN_mod(rsa->dmq1,d,r2,ctx)) goto err; |
- |
- /* calculate inverse of q mod p */ |
- if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) |
- { |
- p = &local_p; |
- BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME); |
- } |
- else |
- p = rsa->p; |
- if (!BN_mod_inverse(rsa->iqmp,rsa->q,p,ctx)) goto err; |
- |
- if (fips_rsa_pairwise_fail) |
- BN_add_word(rsa->n, 1); |
- |
- if(!fips_check_rsa(rsa)) |
- goto err; |
- |
- ok=1; |
-err: |
- if (ok == -1) |
- { |
- RSAerr(RSA_F_RSA_BUILTIN_KEYGEN,ERR_LIB_BN); |
- ok=0; |
- } |
- if (ctx != NULL) |
- { |
- BN_CTX_end(ctx); |
- BN_CTX_free(ctx); |
- } |
- |
- return ok; |
- } |
- |
-#endif |