{"id":1579,"date":"2017-04-02T08:20:44","date_gmt":"2017-04-01T23:20:44","guid":{"rendered":"http:\/\/matoken.org\/blog\/?p=1579"},"modified":"2017-04-02T08:47:16","modified_gmt":"2017-04-01T23:47:16","slug":"try-ext4-encryption-file-system","status":"publish","type":"post","link":"https:\/\/matoken.org\/blog\/2017\/04\/02\/try-ext4-encryption-file-system\/","title":{"rendered":"ext4\u306e\u6697\u53f7\u5316fs\u3092\u8a66\u3057\u3066\u307f\u308b"},"content":{"rendered":"<p>Linux 4.1\u3067ext4\u306e\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u53d6\u308a\u8fbc\u307e\u308c\u3066\u3044\u308b\u306e\u306b\u6c17\u3065\u3044\u305f\u306e\u3067\u5c11\u3057\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\uff0e<br \/>\ncCryptFS\u3084EncFS\u306a\u3069\u3068\u540c\u3058\u3088\u3046\u306b\u30d5\u30a1\u30a4\u30eb\u5358\u4f4d\u3067\u306e\u6697\u53f7\u5316\u3067\u3059\uff0e\u524d\u3082\u3063\u3066\u6697\u53f7\u5316\u30d5\u30e9\u30b0\u3092\u8a2d\u5b9a\u3057\u3066\u3042\u308c\u3070\u4e00\u822c\u30e6\u30fc\u30b6\u304c\u52dd\u624b\u306b\u6697\u53f7\u9818\u57df\u3092\u4f5c\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3057\u305f\uff0eeCryptFS\u3084EncFS\u306e\u3088\u3046\u306a\u4f7f\u3044\u65b9\u3082\u53ef\u80fd\u305d\u3046\u3067\u3059\uff0e\u6050\u3089\u304f\u901f\u5ea6\u306f\u3053\u3061\u3089\u306e\u307b\u3046\u304c\u901f\u3044\u3067\u3057\u3087\u3046(\u672a\u78ba\u8a8d)\uff0e\u305f\u3060\uff0c\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u304c\u308f\u304b\u3063\u3066\u3057\u307e\u3046\u3068\u5225\u306e\u30e6\u30fc\u30b6\u304b\u3089\u3082\u30de\u30a6\u30f3\u30c8\u53ef\u80fd\u3060\u3057\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u304c\u3042\u308c\u3070\u8aad\u307f\u66f8\u304d\u3082\u51fa\u6765\u308b\u306e\u3067\u901a\u5e38\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3068\u540c\u69d8\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a\u306f\u5fc5\u9808\u3067\u3059\u306d\uff0e<br \/>\n\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5185\u5168\u3066\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u306f\u51fa\u6765\u306a\u3044\u3088\u3046\u306a\u306e\u3067LUKS(dm-crypt)\u3068\u306f\u5358\u7d14\u306b\u7a7a\u304d\u304b\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3055\u305d\u3046\u3067\u3059\uff0e<\/p>\n<p>\u305d\u3093\u306a\u3053\u3093\u306a\u3067\u3082\u3068\u3082\u3068Android\u5411\u3051\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u3063\u3066PC\/Server\u3067\u306f\u3042\u307e\u308a\u4f7f\u3044\u307f\u3061\u304c\u601d\u3044\u3064\u304b\u306a\u3044\u611f\u3058\u3067\u3059\uff0e(\u4f55\u304b\u3044\u3044\u4f7f\u3044\u65b9\u3042\u308a\u305d\u3046\u3060\u3051\u3069\u2026\u2026\uff0e)<\/p>\n<h2 id=\"_1\">\u5fc5\u8981\u6761\u4ef6\u78ba\u8a8d<\/h2>\n<ul>\n<li>Linux 4.1\u4ee5\u4e0a<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ uname -r\r\n<span class=\"m\">4<\/span>.9.0-2-amd64\r\n<\/pre>\n<\/div>\n<ul>\n<li>CONFIG_EXT4_ENCRYPTION\u304c\u6709\u52b9<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ grep CONFIG_EXT4_ENCRYPTION \/boot\/config-<span class=\"sb\">`<\/span>uname -r<span class=\"sb\">`<\/span>\r\n<span class=\"nv\">CONFIG_EXT4_ENCRYPTION<\/span><span class=\"o\">=<\/span>y\r\n<\/pre>\n<\/div>\n<ul>\n<li>e2fsprogs 1.43\u4ee5\u4e0a<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ dpkg-query -W e2fsprogs\r\ne2fsprogs       <span class=\"m\">1<\/span>.43.4-2\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u304c4k<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo dumpe2fs \/dev\/loop0 <span class=\"p\">|<\/span> grep -i <span class=\"s1\">&#39;block size&#39;<\/span>\r\ndumpe2fs <span class=\"m\">1<\/span>.43.4 <span class=\"o\">(<\/span><span class=\"m\">31<\/span>-Jan-2017<span class=\"o\">)<\/span>\r\nBlock size:               <span class=\"m\">4096<\/span>\r\n<\/pre>\n<\/div>\n<h2 id=\"_2\">\u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u5c0e\u5165<\/h2>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo apt install e2fsprogs keyutils util-linux coreutils mount\r\n<\/pre>\n<\/div>\n<h2 id=\"_3\">\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u7528\u610f<\/h2>\n<p>\u4eca\u56de\u306f\u65e2\u5b58\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u5185\u306b\u30c7\u30a3\u30b9\u30af\u30a4\u30e1\u30fc\u30b8\u3092\u4f5c\u6210\u3057\u3066\u305d\u308c\u3092\u5229\u7528<\/p>\n<ul>\n<li>1GB\u306e\u30c7\u30a3\u30b9\u30af\u30a4\u30e1\u30fc\u30b8\u306e\u4f5c\u6210<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ dd <span class=\"k\">if<\/span><span class=\"o\">=<\/span>\/dev\/zero <span class=\"nv\">of<\/span><span class=\"o\">=<\/span>ext4-crypt.img <span class=\"nv\">seek<\/span><span class=\"o\">=<\/span><span class=\"m\">1073741824<\/span> <span class=\"nv\">bs<\/span><span class=\"o\">=<\/span><span class=\"m\">1<\/span> <span class=\"nv\">count<\/span><span class=\"o\">=<\/span><span class=\"m\">1<\/span>\r\n<span class=\"m\">1<\/span>+0 \u30ec\u30b3\u30fc\u30c9\u5165\u529b\r\n<span class=\"m\">1<\/span>+0 \u30ec\u30b3\u30fc\u30c9\u51fa\u529b\r\n<span class=\"m\">1<\/span> byte copied, <span class=\"m\">0<\/span>.000118528 s, <span class=\"m\">8<\/span>.4 kB\/s\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u4f5c\u6210<br \/>\nprimary\u30921\u3064\u4f5c\u6210<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/sbin\/fdisk ext4-crypt.img\r\n\r\nWelcome to fdisk <span class=\"o\">(<\/span>util-linux <span class=\"m\">2<\/span>.29.2<span class=\"o\">)<\/span>.\r\nChanges will remain in memory only, <span class=\"k\">until<\/span> you decide to write them.\r\nBe careful before using the write command.\r\n\r\nDevice does not contain a recognized partition table.\r\nCreated a new DOS disklabel with disk identifier 0xa25a3988.\r\n\r\nCommand <span class=\"o\">(<\/span>m <span class=\"k\">for<\/span> <span class=\"nb\">help<\/span><span class=\"o\">)<\/span>: n\r\nPartition <span class=\"nb\">type<\/span>\r\n   p   primary <span class=\"o\">(<\/span><span class=\"m\">0<\/span> primary, <span class=\"m\">0<\/span> extended, <span class=\"m\">4<\/span> free<span class=\"o\">)<\/span>\r\n   e   extended <span class=\"o\">(<\/span>container <span class=\"k\">for<\/span> logical partitions<span class=\"o\">)<\/span>\r\nSelect <span class=\"o\">(<\/span>default p<span class=\"o\">)<\/span>: p\r\nPartition number <span class=\"o\">(<\/span><span class=\"m\">1<\/span>-4, default <span class=\"m\">1<\/span><span class=\"o\">)<\/span>: \r\nFirst sector <span class=\"o\">(<\/span><span class=\"m\">2048<\/span>-2097151, default <span class=\"m\">2048<\/span><span class=\"o\">)<\/span>: \r\nLast sector, +sectors or +size<span class=\"o\">{<\/span>K,M,G,T,P<span class=\"o\">}<\/span> <span class=\"o\">(<\/span><span class=\"m\">2048<\/span>-2097151, default <span class=\"m\">2097151<\/span><span class=\"o\">)<\/span>: \r\n\r\nCreated a new partition <span class=\"m\">1<\/span> of <span class=\"nb\">type<\/span> <span class=\"s1\">&#39;Linux&#39;<\/span> and of size <span class=\"m\">1023<\/span> MiB.\r\n\r\nCommand <span class=\"o\">(<\/span>m <span class=\"k\">for<\/span> <span class=\"nb\">help<\/span><span class=\"o\">)<\/span>: w\r\nThe partition table has been altered.\r\nSyncing disks.\r\n<\/pre>\n<\/div>\n<ul>\n<li>ext4\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/sbin\/mkfs.ext4 .\/ext4-crypt.img \r\nmke2fs <span class=\"m\">1<\/span>.43.4 <span class=\"o\">(<\/span><span class=\"m\">31<\/span>-Jan-2017<span class=\"o\">)<\/span>\r\nFound a dos partition table in .\/ext4-crypt.img\r\nProceed anyway? <span class=\"o\">(<\/span>y,N<span class=\"o\">)<\/span> y\r\nDiscarding device blocks: <span class=\"k\">done<\/span>                            \r\nCreating filesystem with <span class=\"m\">262144<\/span> 4k blocks and <span class=\"m\">65536<\/span> inodes\r\nFilesystem UUID: dc44fd43-7d7a-4dfc-87f1-dc52410e2dd1\r\nSuperblock backups stored on blocks: \r\n        <span class=\"m\">32768<\/span>, <span class=\"m\">98304<\/span>, <span class=\"m\">163840<\/span>, <span class=\"m\">229376<\/span>\r\n\r\nAllocating group tables: <span class=\"k\">done<\/span>                            \r\nWriting inode tables: <span class=\"k\">done<\/span>                            \r\nCreating journal <span class=\"o\">(<\/span><span class=\"m\">8192<\/span> blocks<span class=\"o\">)<\/span>: <span class=\"k\">done<\/span>\r\nWriting superblocks and filesystem accounting information: <span class=\"k\">done<\/span>\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30de\u30a6\u30f3\u30c8<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo mount -o loop .\/ext4-crypt.img \/mnt\r\n$ grep \/mnt \/etc\/mtab \r\n\/dev\/loop0 \/mnt ext4 rw,relatime,data<span class=\"o\">=<\/span>ordered <span class=\"m\">0<\/span> <span class=\"m\">0<\/span>\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30aa\u30fc\u30ca\u30fc\uff0c\u30b0\u30eb\u30fc\u30d7\u306e\u5909\u66f4<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo chown <span class=\"sb\">`<\/span>id -u<span class=\"sb\">`<\/span>.<span class=\"sb\">`<\/span>id -g<span class=\"sb\">`<\/span> \/mnt\r\n$ ls -la \/mnt\r\n\u5408\u8a08 <span class=\"m\">36<\/span>\r\ndrwxr-xr-x <span class=\"m\">3<\/span> mk   mk    <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">04<\/span>:58 .\r\ndrwxr-xr-x <span class=\"m\">1<\/span> root root   <span class=\"m\">248<\/span>  3\u6708 <span class=\"m\">28<\/span> <span class=\"m\">02<\/span>:19 ..\r\ndrwx------ <span class=\"m\">2<\/span> root root <span class=\"m\">16384<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">04<\/span>:58 lost+found\r\n<\/pre>\n<\/div>\n<h2 id=\"ext4\">ext4\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u5229\u7528<\/h2>\n<ul>\n<li>ext4\u306e\u6697\u53f7\u5316\u30d5\u30e9\u30b0\u3092\u8a2d\u5b9a<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo tune2fs -O encrypt \/dev\/loop0\r\n$ sudo dumpe2fs \/dev\/loop0 <span class=\"p\">|<\/span> grep -io encrypt\r\ndumpe2fs <span class=\"m\">1<\/span>.43.4 <span class=\"o\">(<\/span><span class=\"m\">31<\/span>-Jan-2017<span class=\"o\">)<\/span>\r\nencrypt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u9375\u306e\u751f\u6210\u3068\u30ad\u30fc\u30ea\u30f3\u30b0\u3078\u306e\u8ffd\u52a0<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/usr\/sbin\/e4crypt add_key\r\nEnter passphrase <span class=\"o\">(<\/span><span class=\"nb\">echo<\/span> disabled<span class=\"o\">)<\/span>: \r\nAdded key with descriptor <span class=\"o\">[<\/span>07a3ce5a6ebf0396<span class=\"o\">]<\/span>\r\n$ keyctl show\r\nSession Keyring\r\n<span class=\"m\">1048296028<\/span> --alswrv   <span class=\"m\">1000<\/span>  <span class=\"m\">1000<\/span>  keyring: _ses\r\n <span class=\"m\">615559430<\/span> --alsw-v   <span class=\"m\">1000<\/span>  <span class=\"m\">1000<\/span>   <span class=\"se\">\\_<\/span> logon: ext4:07a3ce5a6ebf0396\r\n<\/pre>\n<\/div>\n<p>\u203b\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u306e\u5165\u529b\u306f1\u56de\u3060\u3051\u3067\u78ba\u8a8d\u3055\u308c\u306a\u3044\u306e\u3067\u521d\u56de\u306f\u7279\u306b\u6ce8\u610f\uff0e\u5229\u7528\u3057\u306f\u3058\u3081\u308b\u524d\u306b\u30ad\u30fc\u30ea\u30f3\u30b0\u3092\u30af\u30ea\u30a2\u3057\u3066\u767b\u9332\u3057\u76f4\u3057\u3066\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u304c\u6b63\u3057\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304a\u304f\uff0e<\/p>\n<ul>\n<li>\u6697\u53f7\u5316\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a<\/li>\n<\/ul>\n<p>\u3053\u306e\u3068\u304d\u5bfe\u8c61\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u7a7a\u3067\u306f\u306a\u3044\u5834\u5408\u30a8\u30e9\u30fc\u3068\u306a\u308b( <em><code>Error [Directory not empty] setting policy.<\/code><\/em> )\u306e\u3067\u6ce8\u610f\uff0e<\/p>\n<p>\u30de\u30a6\u30f3\u30c8\u30dd\u30a4\u30f3\u30c8\u306b\u306f<code>lost+found<\/code>\u304c\u5b58\u5728\u3059\u308b\u306e\u3067\u5fc5\u305a\u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u4ee5\u4e0b\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308b\uff0e<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ mkdir \/mnt\/encryption\r\n$ \/usr\/sbin\/e4crypt set_policy 07a3ce5a6ebf0396 \/mnt\/encryption\r\nKey with descriptor <span class=\"o\">[<\/span>07a3ce5a6ebf0396<span class=\"o\">]<\/span> applied to \/mnt\/encryption.\r\n<\/pre>\n<\/div>\n<p>\u203b\u9375\u306e\u751f\u6210\u3068\u30ad\u30fc\u30ea\u30f3\u30b0\u3078\u306e\u8ffd\u52a0\u3068\u6697\u53f7\u5316\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u306f\u6b21\u306e\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u4e00\u5ea6\u306b\u8a2d\u5b9a\u53ef\u80fd<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/usr\/sbin\/e4crypt add_key \/mnt\/encryption\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u9818\u57df\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ <span class=\"nb\">echo<\/span> <span class=\"s1\">&#39;hello&#39;<\/span> &gt; \/mnt\/encryption\/test.txt\r\n$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:07 .\r\ndrwxr-xr-x <span class=\"m\">4<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:06 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:07 test.txt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30ad\u30fc\u30ea\u30f3\u30b0\u306e\u30af\u30ea\u30a2<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo keyctl clear @s\r\n$ sudo keyctl show\r\nSession Keyring\r\n<span class=\"m\">1048296028<\/span> --alswrv   <span class=\"m\">1000<\/span>  <span class=\"m\">1000<\/span>  keyring: _ses\r\n<\/pre>\n<\/div>\n<p>\u30ad\u30fc\u30ea\u30f3\u30b0\u3092\u30af\u30ea\u30a2\u3057\u305f\u3060\u3051\u3067\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ ls -lA \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:07 test.txt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3068\u30de\u30a6\u30f3\u30c8\u3057\u76f4\u3057<\/li>\n<\/ul>\n<p>\u30ad\u30fc\u30ea\u30f3\u30b0\u3092\u30af\u30ea\u30a2\u3057\u305f\u72b6\u614b\u3067\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3059\u308b\u3068\u6697\u53f7\u5316\u3055\u308c\u305f\u72b6\u614b\u306b\u623b\u308b<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo umount \/mnt\r\n$ sudo mount -o loop .\/ext4-crypt.img \/mnt\r\n$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 .\r\ndrwxr-xr-x <span class=\"m\">4<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:06 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n$ cat \/mnt\/encryption\/uzUlJZQfaxMx,7cC63,53A \r\ncat: \/mnt\/encryption\/uzUlJZQfaxMx,7cC63,53A: \u8981\u6c42\u3055\u308c\u305f\u30ad\u30fc\u304c\u5229\u7528\u3067\u304d\u307e\u305b\u3093\r\n<\/pre>\n<\/div>\n<p>\u30e6\u30fc\u30b6\uff0c\u30b0\u30eb\u30fc\u30d7\uff0c\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306a\u3069\u306f\u898b\u3048\u308b\uff0e\u5185\u5bb9\u306b\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\uff0e<\/p>\n<ul>\n<li>\u518d\u5ea6\u6697\u53f7\u5316\u9818\u57df\u3092\u5229\u7528\u51fa\u6765\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n<\/ul>\n<p>\u9375\u306e\u751f\u6210\u3068\u30ad\u30fc\u30ea\u30f3\u30b0\u3078\u306e\u8ffd\u52a0\u3068\u6697\u53f7\u5316\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u3092\u3057\u76f4\u3059\u3068\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/usr\/sbin\/e4crypt add_key \/mnt\/encryption\r\nEnter passphrase <span class=\"o\">(<\/span><span class=\"nb\">echo<\/span> disabled<span class=\"o\">)<\/span>: \r\nAdded key with descriptor <span class=\"o\">[<\/span>07a3ce5a6ebf0396<span class=\"o\">]<\/span>\r\n$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 .\r\ndrwxr-xr-x <span class=\"m\">4<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:06 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 test.txt\r\n<\/pre>\n<\/div>\n<h2 id=\"_4\">\u30d5\u30a1\u30a4\u30eb\u540d\u9577\u306e\u78ba\u8a8d<\/h2>\n<p>EncFS\u306a\u3069\u306f\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u304c\u30d5\u30a1\u30a4\u30eb\u540d\u5185\u306b\u3042\u308b\u306e\u3067\u5229\u7528\u3067\u304d\u308b\u30d5\u30a1\u30a4\u30eb\u540d\u9577\u304c\u77ed\u304f\u306a\u3063\u3066\u3057\u307e\u3046\uff0eext4\u3067\u306f\u3069\u3046\u304b\u8a66\u3059\uff0e<\/p>\n<ul>\n<li>\u901a\u5e38\u306eext4\u9818\u57df\u3067\u306f256\u6587\u5b57<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ touch \/mnt\/1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456\r\ntouch: <span class=\"s1\">&#39;\/mnt\/1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456&#39;<\/span> \u306b touch \u3067\u304d\u307e\u305b\u3093: \u30d5\u30a1\u30a4\u30eb\u540d\u304c\u9577\u3059\u304e\u307e\u3059\r\n$ touch \/mnt\/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u6697\u53f7\u5316\u9818\u57df\u3082\u540c\u69d8\u3060\u3063\u305f<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ touch \/mnt\/encryption\/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345\r\n$ ls -lA \/mnt\/encryption\/\r\n\u5408\u8a08 <span class=\"m\">4<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 <span class=\"m\">123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 test.txt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u975e\u6697\u53f7\u5316\u72b6\u614b\u3067\u306f\u3053\u3093\u306a\u72b6\u614b<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n<\/pre>\n<\/div>\n<p>\u5fa9\u53f7\u72b6\u614b\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u306f\u5225\u306e\u5834\u6240\u306b\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u3088\u3046\uff0e<\/p>\n<h2 id=\"_5\">\u8907\u6570\u306e\u6697\u53f7\u5316\u9818\u57df\u3092\u4f5c\u3063\u3066\u307f\u308b<\/h2>\n<ul>\n<li>\u65b0\u3057\u3044\u6697\u53f7\u5316\u9818\u57df\u306e\u305f\u3081\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ mkdir \/mnt\/encryption2\r\n$ ls -la \/mnt\/encryption2\r\n\u5408\u8a08 <span class=\"m\">8<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:49 .\r\ndrwxr-xr-x <span class=\"m\">5<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:49 ..\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u6697\u53f7\u5316\u8a2d\u5b9a<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo e4crypt add_key \/mnt\/encryption2\r\nEnter passphrase <span class=\"o\">(<\/span><span class=\"nb\">echo<\/span> disabled<span class=\"o\">)<\/span>:\r\nKey with descriptor <span class=\"o\">[<\/span>9640dd016062b432<span class=\"o\">]<\/span> already exists\r\nKey with descriptor <span class=\"o\">[<\/span>9640dd016062b432<span class=\"o\">]<\/span> applied to \/mnt\/encryption2.\r\n$ keyctl show\r\nSession Keyring   \r\n<span class=\"m\">1048296028<\/span> --alswrv   <span class=\"m\">1000<\/span>  <span class=\"m\">1000<\/span>  keyring: _ses\r\n  <span class=\"m\">94779002<\/span> --alsw-v      <span class=\"m\">0<\/span>     <span class=\"m\">0<\/span>   <span class=\"se\">\\_<\/span> logon: ext4:69ca01e214957173\r\n <span class=\"m\">219437542<\/span> --alsw-v      <span class=\"m\">0<\/span>     <span class=\"m\">0<\/span>   <span class=\"se\">\\_<\/span> logon: ext4:07a3ce5a6ebf0396\r\n<span class=\"m\">1025344233<\/span> --alsw-v      <span class=\"m\">0<\/span>     <span class=\"m\">0<\/span>   <span class=\"se\">\\_<\/span> logon: ext4:9640dd016062b432\r\n$ touch \/mnt\/encryption2\/hoge\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u4e00\u56de\u6697\u53f7\u5316\u3092\u89e3\u9664\u3057\u3066\u30de\u30a6\u30f3\u30c8\u3057\u76f4\u3059<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ keyctl clear @s\r\n$ keyctl show\r\nSession Keyring   \r\n<span class=\"m\">1048296028<\/span> --alswrv   <span class=\"m\">1000<\/span>  <span class=\"m\">1000<\/span>  keyring: _ses\r\n$ sudo umount \/mnt\r\n$ sudo mount -o loop .\/ext4-crypt.img \/mnt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u7247\u65b9\u3060\u3051\u9375\u3092\u767b\u9332\u3057\u3066\u6697\u53f7\u5316\u9818\u57df\u3092\u5229\u7528<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ sudo e4crypt add_key \/mnt\/encryption2\r\nEnter passphrase <span class=\"o\">(<\/span><span class=\"nb\">echo<\/span> disabled<span class=\"o\">)<\/span>:\r\nAdded key with descriptor <span class=\"o\">[<\/span>9640dd016062b432<span class=\"o\">]<\/span>\r\nKey with descriptor <span class=\"o\">[<\/span>9640dd016062b432<span class=\"o\">]<\/span> applied to \/mnt\/encryption2.\r\n$ ls -la \/mnt\/encryption*\r\n\/mnt\/encryption:  \r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:11 .\r\ndrwxr-xr-x <span class=\"m\">5<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:49 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:11 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n\r\n\/mnt\/encryption2: \r\n\u5408\u8a08 <span class=\"m\">8<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:51 .\r\ndrwxr-xr-x <span class=\"m\">5<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:49 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:51 hoge\r\n<\/pre>\n<\/div>\n<h2 id=\"_6\">\u6697\u53f7\u5316\u9818\u57df\u306b\u9375\u304c\u767b\u9332\u3055\u308c\u3066\u306a\u3044\u72b6\u614b\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u3063\u3066\u307f\u308b<\/h2>\n<p>\u6697\u53f7\u5316\u9818\u57df\u306b\u9375\u304c\u767b\u9332\u3055\u308c\u3066\u306a\u3044\u72b6\u614b\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u3068\u3069\u3046\u306a\u308b\u304b\u3092\u78ba\u8a8d\uff0e<\/p>\n<div class=\"codehilite\">\n<pre><span><\/span>$ ls -lA \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">4<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\nmk@x220:~ <span class=\"o\">(<\/span><span class=\"m\">1180<\/span><span class=\"o\">)<\/span>$ touch \/mnt\/encryption\/test\r\ntouch: <span class=\"s1\">&#39;\/mnt\/encryption\/test&#39;<\/span> \u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8a2d\u5b9a\u4e2d\u3067\u3059: \u305d\u306e\u3088\u3046\u306a\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f\u3042\u308a\u307e\u305b\u3093\r\nmk@x220:~ <span class=\"o\">(<\/span><span class=\"m\">1181<\/span><span class=\"o\">)<\/span>$ ls -lA \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">4<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n<\/pre>\n<\/div>\n<p>\u30a8\u30e9\u30fc\u3068\u306a\u3063\u3066\u4f5c\u308c\u306a\u3044\uff0e<\/p>\n<h2 id=\"_7\">\u5225\u306e\u30e6\u30fc\u30b6\u3067\u5229\u7528<\/h2>\n<ul>\n<li>\u5225\u306e\u30e6\u30fc\u30b6\u3067\u4e2d\u304c\u898b\u3048\u308b\u304b\u78ba\u8a8d<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ id\r\n<span class=\"nv\">uid<\/span><span class=\"o\">=<\/span><span class=\"m\">1001<\/span><span class=\"o\">(<\/span>gm<span class=\"o\">)<\/span> <span class=\"nv\">gid<\/span><span class=\"o\">=<\/span><span class=\"m\">1001<\/span><span class=\"o\">(<\/span>gm<span class=\"o\">)<\/span> <span class=\"nv\">groups<\/span><span class=\"o\">=<\/span><span class=\"m\">1001<\/span><span class=\"o\">(<\/span>gm<span class=\"o\">)<\/span>,20<span class=\"o\">(<\/span>dialout<span class=\"o\">)<\/span>,24<span class=\"o\">(<\/span>cdrom<span class=\"o\">)<\/span>,25<span class=\"o\">(<\/span>floppy<span class=\"o\">)<\/span>,29<span class=\"o\">(<\/span>audio<span class=\"o\">)<\/span>,30<span class=\"o\">(<\/span>dip<span class=\"o\">)<\/span>,44<span class=\"o\">(<\/span>video<span class=\"o\">)<\/span>,46<span class=\"o\">(<\/span>plugdev<span class=\"o\">)<\/span>,107<span class=\"o\">(<\/span>netdev<span class=\"o\">)<\/span>\r\n$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxr-xr-x <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:11 .\r\ndrwxr-xr-x <span class=\"m\">7<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:48 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxrwxrwx <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">06<\/span>:11 .\r\ndrwxr-xr-x <span class=\"m\">7<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:48 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 <span class=\"m\">123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 test.txt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u6a29\u9650\u304c\u3042\u308c\u3070\u30d5\u30a1\u30a4\u30eb\u4f5c\u6210\u3082\u3067\u304d\u308b<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ touch \/mnt\/encryption\/other_user\r\n$ ls -lA \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">4<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 <span class=\"m\">123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> gm gm <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:55 other_user\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 test.txt\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u6697\u53f7\u5316\u89e3\u9664\u306f\u51fa\u6765\u306a\u3044\u3068\u601d\u3063\u305f\u304c\uff0c<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ \/usr\/sbin\/e4crypt add_key \/mnt\/encryption\r\n\/mnt\/encryption: Permission denied\r\n<\/pre>\n<\/div>\n<ul>\n<li>\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u3092\u3086\u308b\u304f\u3057\u3066\u3084\u308b\u3068\u51fa\u6765\u3066\u3057\u307e\u3046\uff0e<\/li>\n<\/ul>\n<div class=\"codehilite\">\n<pre><span><\/span>$ ls -la \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">12<\/span>\r\ndrwxrwxrwx <span class=\"m\">2<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:55 .\r\ndrwxr-xr-x <span class=\"m\">7<\/span> mk mk <span class=\"m\">4096<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:48 ..\r\n-rw-r--r-- <span class=\"m\">1<\/span> gm gm    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:55 97NmIBETx,1q9US96etRsA\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 _OsoePJvc3qPQCPHbUMtjSynszcHig3BL\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk    <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 uzUlJZQfaxMx,7cC63,53A\r\n$ \/usr\/sbin\/e4crypt add_key \/mnt\/encryption\r\nEnter passphrase <span class=\"o\">(<\/span><span class=\"nb\">echo<\/span> disabled<span class=\"o\">)<\/span>: \r\nAdded key with descriptor <span class=\"o\">[<\/span>07a3ce5a6ebf0396<span class=\"o\">]<\/span>\r\nError <span class=\"o\">[<\/span>Permission denied<span class=\"o\">]<\/span> setting policy.\r\nThe key descriptor <span class=\"o\">[<\/span>07a3ce5a6ebf0396<span class=\"o\">]<\/span> may not match the existing encryption context <span class=\"k\">for<\/span> directory <span class=\"o\">[<\/span>\/mnt\/encryption<span class=\"o\">]<\/span>.\r\n$ ls -lA \/mnt\/encryption\r\n\u5408\u8a08 <span class=\"m\">4<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:14 <span class=\"m\">123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345<\/span>\r\n-rw-r--r-- <span class=\"m\">1<\/span> gm gm <span class=\"m\">0<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">07<\/span>:55 other_user\r\n-rw-r--r-- <span class=\"m\">1<\/span> mk mk <span class=\"m\">6<\/span>  4\u6708  <span class=\"m\">2<\/span> <span class=\"m\">05<\/span>:42 test.txt\r\n<\/pre>\n<\/div>\n<div>\n<p>\n<iframe style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/rcm-fe.amazon-adsystem.com\/e\/cm?lt1=_blank&#038;bc1=000000&#038;IS2=1&#038;bg1=FFFFFF&#038;fc1=000000&#038;lc1=0000FF&#038;t=matokensmeme-22&#038;o=9&#038;p=8&#038;l=as4&#038;m=amazon&#038;f=ifr&#038;ref=as_ss_li_til&#038;asins=B01N2627HG&#038;linkId=3eda950af10d118d991410fcdc3aa69a\"><\/iframe><iframe style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/rcm-fe.amazon-adsystem.com\/e\/cm?lt1=_blank&#038;bc1=000000&#038;IS2=1&#038;bg1=FFFFFF&#038;fc1=000000&#038;lc1=0000FF&#038;t=matokensmeme-22&#038;o=9&#038;p=8&#038;l=as4&#038;m=amazon&#038;f=ifr&#038;ref=as_ss_li_til&#038;asins=B06XH1ZDBT&#038;linkId=1fd02744348f7e7ef63247dfb73ff5c2\"><\/iframe><iframe style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/rcm-fe.amazon-adsystem.com\/e\/cm?lt1=_blank&#038;bc1=000000&#038;IS2=1&#038;bg1=FFFFFF&#038;fc1=000000&#038;lc1=0000FF&#038;t=matokensmeme-22&#038;o=9&#038;p=8&#038;l=as4&#038;m=amazon&#038;f=ifr&#038;ref=as_ss_li_til&#038;asins=6132928243&#038;linkId=fdbb0a8845fa0f283cae87bd074990f0\"><\/iframe>\n<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Linux 4.1\u3067ext4\u306e\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u53d6\u308a\u8fbc\u307e\u308c\u3066\u3044\u308b\u306e\u306b\u6c17\u3065\u3044\u305f\u306e\u3067\u5c11\u3057\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\uff0e cCryptFS\u3084EncFS\u306a\u3069\u3068\u540c\u3058\u3088\u3046\u306b\u30d5\u30a1\u30a4\u30eb\u5358\u4f4d\u3067\u306e\u6697\u53f7\u5316\u3067\u3059\uff0e\u524d\u3082\u3063\u3066\u6697\u53f7\u5316\u30d5\u30e9\u30b0\u3092\u8a2d\u5b9a\u3057\u3066\u3042\u308c\u3070\u4e00\u822c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"webmentions_disabled_pings":false,"webmentions_disabled":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[7,6,199],"tags":[276,202,217,216,215,275],"class_list":["post-1579","post","type-post","status-publish","format-standard","hentry","category-debian-linux","category-linux","category-sid","tag-debian-linux","tag-debian-sid","tag-encryption","tag-encryption-file-system","tag-ext4","tag-linux"],"_links":{"self":[{"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/posts\/1579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/comments?post=1579"}],"version-history":[{"count":0,"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/posts\/1579\/revisions"}],"wp:attachment":[{"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/media?parent=1579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/categories?post=1579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matoken.org\/blog\/wp-json\/wp\/v2\/tags?post=1579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}