|
3
|
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
|
|
2 * |
|
|
3 * LibTomCrypt is a library that provides various cryptographic |
|
|
4 * algorithms in a highly modular and flexible manner. |
|
|
5 * |
|
|
6 * The library is free for all purposes without any express |
|
|
7 * guarantee it works. |
|
|
8 * |
|
|
9 * Tom St Denis, [email protected], http://libtomcrypt.org |
|
|
10 */ |
|
|
11 #include "mycrypt.h" |
|
|
12 |
|
|
13 int register_cipher(const struct _cipher_descriptor *cipher) |
|
|
14 { |
|
|
15 int x; |
|
|
16 |
|
|
17 _ARGCHK(cipher != NULL); |
|
|
18 |
|
|
19 /* is it already registered? */ |
|
|
20 for (x = 0; x < TAB_SIZE; x++) { |
|
|
21 if (cipher_descriptor[x].name != NULL && cipher_descriptor[x].ID == cipher->ID) { |
|
|
22 return x; |
|
|
23 } |
|
|
24 } |
|
|
25 |
|
|
26 /* find a blank spot */ |
|
|
27 for (x = 0; x < TAB_SIZE; x++) { |
|
|
28 if (cipher_descriptor[x].name == NULL) { |
|
|
29 memcpy(&cipher_descriptor[x], cipher, sizeof(struct _cipher_descriptor)); |
|
|
30 return x; |
|
|
31 } |
|
|
32 } |
|
|
33 |
|
|
34 /* no spot */ |
|
|
35 return -1; |
|
|
36 } |
