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-rw-r--r--ffmpeg/libavutil/hmac.c259
1 files changed, 0 insertions, 259 deletions
diff --git a/ffmpeg/libavutil/hmac.c b/ffmpeg/libavutil/hmac.c
deleted file mode 100644
index 02bdc18..0000000
--- a/ffmpeg/libavutil/hmac.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*
- * Copyright (C) 2012 Martin Storsjo
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-
-#include "attributes.h"
-#include "hmac.h"
-#include "md5.h"
-#include "sha.h"
-#include "sha512.h"
-#include "mem.h"
-
-#define MAX_HASHLEN 64
-#define MAX_BLOCKLEN 128
-
-struct AVHMAC {
- void *hash;
- int blocklen, hashlen;
- void (*final)(void*, uint8_t*);
- void (*update)(void*, const uint8_t*, int len);
- void (*init)(void*);
- uint8_t key[MAX_BLOCKLEN];
- int keylen;
-};
-
-#define DEFINE_SHA(bits) \
-static av_cold void sha ## bits ##_init(void *ctx) \
-{ \
- av_sha_init(ctx, bits); \
-}
-
-#define DEFINE_SHA512(bits) \
-static av_cold void sha ## bits ##_init(void *ctx) \
-{ \
- av_sha512_init(ctx, bits); \
-}
-
-DEFINE_SHA(160)
-DEFINE_SHA(224)
-DEFINE_SHA(256)
-DEFINE_SHA512(384)
-DEFINE_SHA512(512)
-
-AVHMAC *av_hmac_alloc(enum AVHMACType type)
-{
- AVHMAC *c = av_mallocz(sizeof(*c));
- if (!c)
- return NULL;
- switch (type) {
- case AV_HMAC_MD5:
- c->blocklen = 64;
- c->hashlen = 16;
- c->init = (void*)av_md5_init;
- c->update = (void*)av_md5_update;
- c->final = (void*)av_md5_final;
- c->hash = av_md5_alloc();
- break;
- case AV_HMAC_SHA1:
- c->blocklen = 64;
- c->hashlen = 20;
- c->init = sha160_init;
- c->update = (void*)av_sha_update;
- c->final = (void*)av_sha_final;
- c->hash = av_sha_alloc();
- break;
- case AV_HMAC_SHA224:
- c->blocklen = 64;
- c->hashlen = 28;
- c->init = sha224_init;
- c->update = (void*)av_sha_update;
- c->final = (void*)av_sha_final;
- c->hash = av_sha_alloc();
- break;
- case AV_HMAC_SHA256:
- c->blocklen = 64;
- c->hashlen = 32;
- c->init = sha256_init;
- c->update = (void*)av_sha_update;
- c->final = (void*)av_sha_final;
- c->hash = av_sha_alloc();
- break;
- case AV_HMAC_SHA384:
- c->blocklen = 128;
- c->hashlen = 48;
- c->init = sha384_init;
- c->update = (void*)av_sha512_update;
- c->final = (void*)av_sha512_final;
- c->hash = av_sha512_alloc();
- break;
- case AV_HMAC_SHA512:
- c->blocklen = 128;
- c->hashlen = 64;
- c->init = sha512_init;
- c->update = (void*)av_sha512_update;
- c->final = (void*)av_sha512_final;
- c->hash = av_sha512_alloc();
- break;
- default:
- av_free(c);
- return NULL;
- }
- if (!c->hash) {
- av_free(c);
- return NULL;
- }
- return c;
-}
-
-void av_hmac_free(AVHMAC *c)
-{
- if (!c)
- return;
- av_free(c->hash);
- av_free(c);
-}
-
-void av_hmac_init(AVHMAC *c, const uint8_t *key, unsigned int keylen)
-{
- int i;
- uint8_t block[MAX_BLOCKLEN];
- if (keylen > c->blocklen) {
- c->init(c->hash);
- c->update(c->hash, key, keylen);
- c->final(c->hash, c->key);
- c->keylen = c->hashlen;
- } else {
- memcpy(c->key, key, keylen);
- c->keylen = keylen;
- }
- c->init(c->hash);
- for (i = 0; i < c->keylen; i++)
- block[i] = c->key[i] ^ 0x36;
- for (i = c->keylen; i < c->blocklen; i++)
- block[i] = 0x36;
- c->update(c->hash, block, c->blocklen);
-}
-
-void av_hmac_update(AVHMAC *c, const uint8_t *data, unsigned int len)
-{
- c->update(c->hash, data, len);
-}
-
-int av_hmac_final(AVHMAC *c, uint8_t *out, unsigned int outlen)
-{
- uint8_t block[MAX_BLOCKLEN];
- int i;
- if (outlen < c->hashlen)
- return AVERROR(EINVAL);
- c->final(c->hash, out);
- c->init(c->hash);
- for (i = 0; i < c->keylen; i++)
- block[i] = c->key[i] ^ 0x5C;
- for (i = c->keylen; i < c->blocklen; i++)
- block[i] = 0x5C;
- c->update(c->hash, block, c->blocklen);
- c->update(c->hash, out, c->hashlen);
- c->final(c->hash, out);
- return c->hashlen;
-}
-
-int av_hmac_calc(AVHMAC *c, const uint8_t *data, unsigned int len,
- const uint8_t *key, unsigned int keylen,
- uint8_t *out, unsigned int outlen)
-{
- av_hmac_init(c, key, keylen);
- av_hmac_update(c, data, len);
- return av_hmac_final(c, out, outlen);
-}
-
-#ifdef TEST
-#include <stdio.h>
-
-static void test(AVHMAC *hmac, const uint8_t *key, int keylen,
- const uint8_t *data, int datalen)
-{
- uint8_t buf[MAX_HASHLEN];
- int out, i;
- // Some of the test vectors are strings, where sizeof() includes the
- // trailing null byte - remove that.
- if (!key[keylen - 1])
- keylen--;
- if (!data[datalen - 1])
- datalen--;
- out = av_hmac_calc(hmac, data, datalen, key, keylen, buf, sizeof(buf));
- for (i = 0; i < out; i++)
- printf("%02x", buf[i]);
- printf("\n");
-}
-
-int main(void)
-{
- uint8_t key1[20], key3[131], data3[50];
- enum AVHMACType i = AV_HMAC_SHA224;
- static const uint8_t key2[] = "Jefe";
- static const uint8_t data1[] = "Hi There";
- static const uint8_t data2[] = "what do ya want for nothing?";
- static const uint8_t data4[] = "Test Using Larger Than Block-Size Key - Hash Key First";
- static const uint8_t data5[] = "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data";
- static const uint8_t data6[] = "This is a test using a larger than block-size key and a larger "
- "than block-size data. The key needs to be hashed before being used"
- " by the HMAC algorithm.";
- AVHMAC *hmac = av_hmac_alloc(AV_HMAC_MD5);
- if (!hmac)
- return 1;
- memset(key1, 0x0b, sizeof(key1));
- memset(key3, 0xaa, sizeof(key3));
- memset(data3, 0xdd, sizeof(data3));
- // RFC 2202 test vectors
- test(hmac, key1, 16, data1, sizeof(data1));
- test(hmac, key2, sizeof(key2), data2, sizeof(data2));
- test(hmac, key3, 16, data3, sizeof(data3));
- test(hmac, key3, 80, data4, sizeof(data4));
- test(hmac, key3, 80, data5, sizeof(data5));
- av_hmac_free(hmac);
-
- /* SHA-1 */
- hmac = av_hmac_alloc(AV_HMAC_SHA1);
- if (!hmac)
- return 1;
- // RFC 2202 test vectors
- test(hmac, key1, sizeof(key1), data1, sizeof(data1));
- test(hmac, key2, sizeof(key2), data2, sizeof(data2));
- test(hmac, key3, 20, data3, sizeof(data3));
- test(hmac, key3, 80, data4, sizeof(data4));
- test(hmac, key3, 80, data5, sizeof(data5));
- av_hmac_free(hmac);
-
- /* SHA-2 */
- while (i <= AV_HMAC_SHA512) {
- hmac = av_hmac_alloc(i);
- // RFC 4231 test vectors
- test(hmac, key1, sizeof(key1), data1, sizeof(data1));
- test(hmac, key2, sizeof(key2), data2, sizeof(data2));
- test(hmac, key3, 20, data3, sizeof(data3));
- test(hmac, key3, sizeof(key3), data4, sizeof(data4));
- test(hmac, key3, sizeof(key3), data6, sizeof(data6));
- av_hmac_free(hmac);
- i++;
- }
- return 0;
-}
-#endif /* TEST */
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