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Commit | Line | Data |
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62867571 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
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 | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
ec577822 BM |
12 | #include <openssl/evp.h> |
13 | #include <openssl/objects.h> | |
25f2138b | 14 | #include "crypto/evp.h" |
d02b48c6 | 15 | |
1921eaad | 16 | static int null_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e | 17 | const unsigned char *iv, int enc); |
be06a934 | 18 | static int null_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
19 | const unsigned char *in, size_t inl); |
20 | static const EVP_CIPHER n_cipher = { | |
21 | NID_undef, | |
22 | 1, 0, 0, 0, | |
23 | null_init_key, | |
24 | null_cipher, | |
25 | NULL, | |
26 | 0, | |
27 | NULL, | |
28 | NULL, | |
29 | NULL, | |
30 | NULL | |
31 | }; | |
d02b48c6 | 32 | |
13588350 | 33 | const EVP_CIPHER *EVP_enc_null(void) |
0f113f3e | 34 | { |
26a7d938 | 35 | return &n_cipher; |
0f113f3e | 36 | } |
d02b48c6 | 37 | |
1921eaad | 38 | static int null_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
39 | const unsigned char *iv, int enc) |
40 | { | |
0f113f3e MC |
41 | return 1; |
42 | } | |
d02b48c6 | 43 | |
be06a934 | 44 | static int null_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
45 | const unsigned char *in, size_t inl) |
46 | { | |
47 | if (in != out) | |
16f8d4eb | 48 | memcpy(out, in, inl); |
0f113f3e MC |
49 | return 1; |
50 | } |