/src/openssl/crypto/rsa/rsa_none.c
Line | Count | Source |
1 | | /* |
2 | | * Copyright 1995-2020 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 | | * RSA low level APIs are deprecated for public use, but still ok for |
12 | | * internal use. |
13 | | */ |
14 | | #include "internal/deprecated.h" |
15 | | |
16 | | #include "internal/cryptlib.h" |
17 | | #include <openssl/bn.h> |
18 | | #include <openssl/rsa.h> |
19 | | |
20 | | int RSA_padding_add_none(unsigned char *to, int tlen, |
21 | | const unsigned char *from, int flen) |
22 | 0 | { |
23 | 0 | if (flen > tlen) { |
24 | 0 | ERR_raise(ERR_LIB_RSA, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); |
25 | 0 | return 0; |
26 | 0 | } |
27 | | |
28 | 0 | if (flen < tlen) { |
29 | 0 | ERR_raise(ERR_LIB_RSA, RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE); |
30 | 0 | return 0; |
31 | 0 | } |
32 | | |
33 | 0 | memcpy(to, from, (unsigned int)flen); |
34 | 0 | return 1; |
35 | 0 | } |
36 | | |
37 | | int RSA_padding_check_none(unsigned char *to, int tlen, |
38 | | const unsigned char *from, int flen, int num) |
39 | 0 | { |
40 | |
|
41 | 0 | if (flen > tlen) { |
42 | 0 | ERR_raise(ERR_LIB_RSA, RSA_R_DATA_TOO_LARGE); |
43 | 0 | return -1; |
44 | 0 | } |
45 | | |
46 | 0 | memset(to, 0, tlen - flen); |
47 | 0 | memcpy(to + tlen - flen, from, flen); |
48 | 0 | return tlen; |
49 | 0 | } |