源码分享-M3U8数据流ts的AES-128解密并合并

最新推荐文章于 2025-05-12 09:31:12 发布

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最新推荐文章于 2025-05-12 09:31:12 发布 · 2.6k 阅读

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#M3U8 #AES-128 #ts #合并 #源码

源码依赖开源软件OpenSSL的crypto/aes/aes_core.c、crypto/aes/aes.h、crypto/aes/aes_locl.h共3个文件。

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "aes.h"

#define M3U8_PATH "C:/Source/1/m3u8/"
#define M3U8_KEY "03c01165beea11bd"
#define M3U8_OUT_FILE "C:/Source/1/all.ts"
#define M3U8_COUNT 0xFFFF

int decodeAES128CBC(const char *inPath, FILE *out,
                  const char userKey[16], unsigned char ivec[16]) {
    FILE *in;
    int i, n;
    unsigned char outTemp[16], inTemp[16];
    AES_KEY key;

    in = fopen(inPath, "rb");
    if (in == NULL) return errno;

    fseek(in, 0L, SEEK_END);
    n = (int) (ftell(in) / 16);
    fseek(in, 0L, SEEK_SET);

    AES_set_decrypt_key((const unsigned char*) userKey, 128, &key);

    while (n > 0) {
        fread(inTemp, 1, 16, in);
        AES_decrypt(inTemp, outTemp, &key);
        for (i = 0; i < 16; i++) {
            outTemp[i] ^= ivec[i];
            ivec[i] = i