1 /* 2 * Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 /* 11 * NB: This file contains deprecated functions (compatibility wrappers to the 12 * "new" versions). 13 */ 14 15 /* 16 * RSA low level APIs are deprecated for public use, but still ok for 17 * internal use. 18 */ 19 #include "internal/deprecated.h" 20 21 #include <openssl/opensslconf.h> 22 23 #include <stdio.h> 24 #include <time.h> 25 #include "internal/cryptlib.h" 26 #include <openssl/bn.h> 27 #include <openssl/rsa.h> 28 29 RSA *RSA_generate_key(int bits, unsigned long e_value, 30 void (*callback) (int, int, void *), void *cb_arg) 31 { 32 int i; 33 BN_GENCB *cb = BN_GENCB_new(); 34 RSA *rsa = RSA_new(); 35 BIGNUM *e = BN_new(); 36 37 if (cb == NULL || rsa == NULL || e == NULL) 38 goto err; 39 40 /* 41 * The problem is when building with 8, 16, or 32 BN_ULONG, unsigned long 42 * can be larger 43 */ 44 for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) { 45 if (e_value & (1UL << i)) 46 if (BN_set_bit(e, i) == 0) 47 goto err; 48 } 49 50 BN_GENCB_set_old(cb, callback, cb_arg); 51 52 if (RSA_generate_key_ex(rsa, bits, e, cb)) { 53 BN_free(e); 54 BN_GENCB_free(cb); 55 return rsa; 56 } 57 err: 58 BN_free(e); 59 RSA_free(rsa); 60 BN_GENCB_free(cb); 61 return 0; 62 } 63