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Unified Diff: base/security/rc4.c

Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master
Patch Set: Created 6 years, 2 months ago
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Index: base/security/rc4.c
diff --git a/base/security/rc4.c b/base/security/rc4.c
deleted file mode 100644
index 3f1b3367f4a5472ab6482712d42e0c18b829c97b..0000000000000000000000000000000000000000
--- a/base/security/rc4.c
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2005-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-#include "rc4.h"
-
-#include <inttypes.h>
-
-void RC4_setKey(RC4_CTX* ctx, const uint8_t* key, int len) {
- uint8_t* S = ctx->S;
- int i, j;
-
- for (i = 0; i < 256; ++i) {
- S[i] = i;
- }
-
- j = 0;
- for (i = 0; i < 256; ++i) {
- uint8_t tmp;
-
- j = (j + S[i] + key[i % len]) & 255;
-
- tmp = S[i];
- S[i] = S[j];
- S[j] = tmp;
- }
-
- ctx->i = 0;
- ctx->j = 0;
-}
-
-void RC4_crypt(RC4_CTX* ctx,
- const uint8_t *in,
- uint8_t* out,
- int len) {
- uint8_t i = ctx->i;
- uint8_t j = ctx->j;
- uint8_t* S = ctx->S;
-
- int n;
-
- for (n = 0; n < len; ++n) {
- uint8_t tmp;
-
- i = (i + 1) & 255;
- j = (j + S[i]) & 255;
-
- tmp = S[i];
- S[i] = S[j];
- S[j] = tmp;
-
- if (in) {
- if (out) {
- out[n] = in[n] ^ S[(S[i] + S[j]) & 255];
- }
- } else {
- if (out) {
- out[n] = S[(S[i] + S[j]) & 255];
- }
- }
- }
-
- ctx->i = i;
- ctx->j = j;
-}
-
-void RC4_discard(RC4_CTX* ctx, int len) {
- RC4_crypt(ctx, 0, 0, len);
-}
-
-void RC4_stream(RC4_CTX* ctx, uint8_t* out, int len) {
- RC4_crypt(ctx, 0, out, len);
-}
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