单片机Base64　Ｃ语言加密

2019-04-15 18:10发布

站内文章 / PIC单片机
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Authorization: Basic YWRtaW46YWRtaW4= 为登录的帐号密码。
使用 Base64 解密开查看内容：admin:admin

然后用软件将字典中的密码与“admin:”进行组合，然后进行 base64 加密，进行破解。

下面是加密算法： #include #include #define HTTP_DATA_MAX_LEN 2048 #define MAX_CLIENT 8 typedef unsigned int size_t; int listen_fd = -1; int clientfd[MAX_CLIENT]; char *httpRequest; static char userName[]="admin"; static char usrPassword[]="admin"; static char firmwareVersion[]="2.0"; static char *auth_str = NULL; static const unsigned char base64_table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; unsigned char * base64_encode(const unsigned char *src, int len, int *out_len) { unsigned char *out, *pos; const unsigned char *end, *in; size_t olen; int line_len; olen = len * 4 / 3 + 4; /* 3-byte blocks to 4-byte */ olen += olen / 72; /* line feeds */ olen++; /* nul termination */ out = malloc(olen); if (out == NULL) return NULL; end = src + len; in = src; pos = out; line_len = 0; while (end - in >= 3) { *pos++ = base64_table[in[0] >> 2]; *pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)]; *pos++ = base64_table[((in[1] & 0x0f) << 2) | (in[2] >> 6)]; *pos++ = base64_table[in[2] & 0x3f]; in += 3; line_len += 4; if (line_len >= 72) { *pos++ = ' '; line_len = 0; } } if (end - in) { *pos++ = base64_table[in[0] >> 2]; if (end - in == 1) { *pos++ = base64_table[(in[0] & 0x03) << 4]; *pos++ = '='; } else { *pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)]; *pos++ = base64_table[(in[1] & 0x0f) << 2]; } *pos++ = '='; line_len += 4; } if (line_len) *pos++ = ' '; *pos = '

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