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author | Jelmer Vernooij <jelmer@samba.org> | 2008-09-24 15:30:23 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-09-24 15:30:23 +0200 |
commit | 6925202bdee75d191bb5743659c53155ba1605ea (patch) | |
tree | 2a5c61b4ee46e66f637ebbe765b0eb8c07fbef0f /source4/lib/crypto/arcfour.c | |
parent | 1ca2e4b99fadac78fd9c58ea9ec9973f19659203 (diff) | |
download | samba-6925202bdee75d191bb5743659c53155ba1605ea.tar.gz samba-6925202bdee75d191bb5743659c53155ba1605ea.tar.bz2 samba-6925202bdee75d191bb5743659c53155ba1605ea.zip |
Move source4/lib/crypto to lib/crypto.
Diffstat (limited to 'source4/lib/crypto/arcfour.c')
-rw-r--r-- | source4/lib/crypto/arcfour.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/source4/lib/crypto/arcfour.c b/source4/lib/crypto/arcfour.c deleted file mode 100644 index 94196fa1ee..0000000000 --- a/source4/lib/crypto/arcfour.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - An implementation of the arcfour algorithm - - Copyright (C) Andrew Tridgell 1998 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" -#include "lib/crypto/crypto.h" - -/* initialise the arcfour sbox with key */ -_PUBLIC_ void arcfour_init(struct arcfour_state *state, const DATA_BLOB *key) -{ - int ind; - uint8_t j = 0; - for (ind = 0; ind < sizeof(state->sbox); ind++) { - state->sbox[ind] = (uint8_t)ind; - } - - for (ind = 0; ind < sizeof(state->sbox); ind++) { - uint8_t tc; - - j += (state->sbox[ind] + key->data[ind%key->length]); - - tc = state->sbox[ind]; - state->sbox[ind] = state->sbox[j]; - state->sbox[j] = tc; - } - state->index_i = 0; - state->index_j = 0; -} - -/* crypt the data with arcfour */ -_PUBLIC_ void arcfour_crypt_sbox(struct arcfour_state *state, uint8_t *data, int len) -{ - int ind; - - for (ind = 0; ind < len; ind++) { - uint8_t tc; - uint8_t t; - - state->index_i++; - state->index_j += state->sbox[state->index_i]; - - tc = state->sbox[state->index_i]; - state->sbox[state->index_i] = state->sbox[state->index_j]; - state->sbox[state->index_j] = tc; - - t = state->sbox[state->index_i] + state->sbox[state->index_j]; - data[ind] = data[ind] ^ state->sbox[t]; - } -} - -/* - arcfour encryption with a blob key -*/ -_PUBLIC_ void arcfour_crypt_blob(uint8_t *data, int len, const DATA_BLOB *key) -{ - struct arcfour_state state; - arcfour_init(&state, key); - arcfour_crypt_sbox(&state, data, len); -} - -/* - a variant that assumes a 16 byte key. This should be removed - when the last user is gone -*/ -_PUBLIC_ void arcfour_crypt(uint8_t *data, const uint8_t keystr[16], int len) -{ - DATA_BLOB key = data_blob(keystr, 16); - - arcfour_crypt_blob(data, len, &key); - - data_blob_free(&key); -} - - |