{"id":2340,"date":"2026-07-29T09:25:30","date_gmt":"2026-07-29T01:25:30","guid":{"rendered":"https:\/\/shr1mp.top\/?p=2340"},"modified":"2026-07-29T09:28:48","modified_gmt":"2026-07-29T01:28:48","slug":"%e9%bb%84%e9%b9%a4%e6%9d%afmisc","status":"publish","type":"post","link":"https:\/\/shr1mp.top\/index.php\/2026\/07\/29\/%e9%bb%84%e9%b9%a4%e6%9d%afmisc\/","title":{"rendered":"\u9ec4\u9e64\u676fMisc"},"content":{"rendered":"\n

\u6f6e\u75d5\u7559\u58f0<\/h2>\n\n\n\n

\u4e00\u4e2aPNG\uff0c\u6254\u8fdb\u968f\u6ce2\u9010\u6d41\u53ef\u4ee5\u5f97\u5230\u672b\u5c3e\u5f88\u957f\u4e00\u4e32\u6570\u636e<\/p>\n\n\n\n

1. \u5148\u6309\u5b57\u8282\u6574\u4f53\u53cd\u8f6c\uff1b\n2. \u518d\u5bf9\u6bcf\u4e2a\u5b57\u8282\u505a\u9ad8\u4f4e 4 bit \u4ea4\u6362\uff1b\n3. \u5f97\u5230 ZIP \u6587\u4ef6\u3002<\/code><\/pre>\n\n\n\n
from pathlib import Path\n\nsrc = Path(r\"C:\\Users\\q1388\\Downloads\\\u6f6e\u75d5\u7559\u58f0\\data_end.txt\")\nraw = bytes.fromhex(\"\".join(src.read_text(errors=\"ignore\").split()))\n\ndef swap_nibble(x):\n    return ((x & 0x0f) << 4) | (x >> 4)\n\nout = bytes(swap_nibble(b) for b in raw[::-1])\nPath(r\"outputs\\tail_recovered.zip\").write_bytes(out)\n\nprint(out[:8].hex())<\/code><\/pre>\n\n\n\n
\u6062\u590d\u51fa\u4e00\u4e2a\u52a0\u5bc6\u7684zip\u6587\u4ef6\uff0c\u518d\u89c2\u5bdf\u539f\u56fe\u7247\u7684exif<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u627e\u5230\u4e00\u4e2a\u63a9\u7801\u5bc6\u7801\uff0c\u5bf9\u6b64\u8fdb\u884c\u7206\u7834\u5f97\u5230\u4e2d\u95f4\u90e8\u5206 D4fX<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u6253\u5f00\u540e\u5f97\u5230\u53e6\u4e00\u4e2aPNG\uff0c\u8fd9\u4e2aPNG\u6709\u6587\u672c\u5757\uff0c\u7ecf\u8fc7Base64\u89e3\u7801\u540e\u5f97\u5230\uff1a<\/p>\n\n\n\n
render-group-L4xGd -> Base64 is not the road here.
palette-trace-A8sB -> better_to_listen_than_to_stare
map-stamp -> light can lie, order cannot<\/p>\n\n\n\n
\u540c\u65f6\u5728\u6587\u4ef6\u672b\u5c3e\u5939\u6742\u4e86\u4e00\u4e2aWav\u6587\u4ef6\uff0c\u8fdb\u884c\u63d0\u53d6\uff0c\u770b\u4ed6\u7684\u9891\u7387\u56fe\uff08\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u7528Audacity\u76f4\u63a5\u770b\uff09<\/p>\n\n\n\n
\n
ffmpeg -y -i tide_trace.wav -lavfi “showspectrumpic=s=8192×2048:legend=0:scale=log” spectrum.png<\/p>\n<\/blockquote>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u8fdb\u884c\u955c\u50cf\u7ffb\u8f6c+180\u00b0\u65cb\u8f6c\uff1a<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u4f46\u662fflag\u662fUUID\u5f97\u683c\u5f0f\uff0c\u4e24\u4e2a-\u4e4b\u95f4\u9700\u8981\u56db\u4e2a\u5b57\u6bcd\uff0c\u6240\u4ee5\u8fd9\u91cc\u7684\u987a\u5e8f\u663e\u7136\u4e0d\u5bf9\u3002\u6b64\u65f6\u5269\u4e0b\u7684\u552f\u4e00\u7ebf\u7d22\u5c31\u662f\u4e0a\u4e00\u4e2a\u4fee\u6539\u8fc7\u957f\u5bbd\u5f97\u56fe\u50cf<\/p>\n\n\n\n
\u5bf9 Green \u548c Alpha \u7684\u6700\u4f4e\u4f4d\u5f02\u6216\uff1a<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u5f97\u5230\u8fd9\u4e2a\u987a\u5e8f\u56fe\uff0c\u6700\u7ec8\u5f97\u5230flag<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
flag{60a8d749-3760-4560-8bc7-86f2a7754dfa}<\/p>\n\n\n\n
\u5931\u5e8f\u8d27\u6808<\/h2>\n\n\n\n
\u9898\u76ee\u7ed9\u51fa 127 \u4e2a `BOX-*` \u6587\u4ef6\uff0c\u6bcf\u4e2a\u6587\u4ef6\u90fd\u662f\u5e26\u4f20\u7edf ZIP \u52a0\u5bc6\u7684\u538b\u7f29\u5305\u3002\u5916\u5c42 ZIP \u5bc6\u7801\u662f\u5bf9\u5e94\u7f16\u53f7\uff1b\u89e3\u51fa\u540e\u53d6\u77ed Base32 \u7247\u6bb5\uff0c\u6309\u89e3\u7801\u540e\u539f\u59cb\u5b57\u8282\u7684 9 \u5b57\u8282\u91cd\u53e0\u6062\u590d\u987a\u5e8f\uff0c\u518d zlib inflate \u5f97\u5230 flag\u3002<\/p>\n\n\n\n
\u6bcf\u4e2a `BOX-xx` \u7684\u5bc6\u7801\u5c31\u662f\u7f16\u53f7\uff1a

– `BOX-01` -> `01`
– `BOX-09` -> `09`
– `BOX-100` -> `100`

\u89e3\u5bc6\u540e\u5185\u5bb9\u7c7b\u4f3c\uff1a


BOX-04 | data=PDND3EW5N3RDAEEF57ZRI7UAXKIDRP2CXFQNS5C3SUWRK=== | crc32=42fd8f19<\/p>\n\n\n\n
\u5176\u4e2d data<\/code> \u662f Base32\uff0ccrc32<\/code> \u662f Base32 \u89e3\u7801\u540e\u539f\u59cb\u5b57\u8282\u7684 CRC32\u3002<\/p>\n\n\n\n
\u63a5\u4e0b\u6765\u662fbase32\u7684\u4fee\u590d\uff0c\u5229\u7528CRC32\u6821\u9a8c\u8fdb\u884c\u679a\u4e3e<\/p>\n\n\n\n
\u53d6\u51fa data<\/code>Base32 \u89e3\u7801\u6210\u539f\u59cb bytes\u5bf9 bytes \u7b97 CRC32\u548c\u884c\u5c3e\u7684 crc32=<\/code> \u6bd4\u8f83\u5982\u679c\u4e0d\u4e00\u81f4\uff0c\u8bf4\u660e Base32 \u5b57\u7b26\u91cc\u6709\u9519<\/p>\n\n\n\n
ALPHABET = \"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567\"\n\nfor pos, old in enumerate(data):\n    if old == \"=\":\n        continue\n    for new in ALPHABET:\n        if new == old:\n            continue\n        candidate = data[:pos] + new + data[pos + 1:]\n        raw = base64.b32decode(candidate)\n        if crc32(raw) == target_crc:\n            print(\"fixed\", pos, old, \"->\", new)<\/code><\/pre>\n\n\n\n
\u4fee\u590d\u5f97\u9519\u8bef\uff1a<\/p>\n\n\n\n
BOX-10: pos 5 G -> O
BOX-14: pos 11 W -> K
BOX-30: pos 33 7 -> D
BOX-72: pos 39 J -> Z
BOX-77: pos 22 K -> W
BOX-88: pos 44 D -> 7
BOX-93: pos 16 2 -> Z<\/p>\n\n\n\n
\u4fee\u590d\u540e\uff0c\u5bf9\u6bcf\u4e2a\u77ed\u7247\u6bb5\u505a Base32 \u89e3\u7801\u3002\u6309\u539f\u59cb\u5b57\u8282\u7684 9 \u5b57\u8282\u91cd\u53e0\u6062\u590d\u552f\u4e00\u987a\u5e8f\uff1a<\/p>\n\n\n\n
4, 14, 31, 94, 83, 72, 81, 50, 37, 77, 6, 69, 40, 10, 85, 80, 9, 30, 79, 67, 76, 93, 7, 68, 92, 88, 49<\/code><\/pre>\n\n\n\n
\u62fc\u63a5\u540e\u7684\u6570\u636e\u4ee5 zlib \u5934\u5f00\u59cb\uff0c\u76f4\u63a5\u89e3\u538b\uff1a<\/p>\n\n\n\n
\u5f97\u5230\u660e\u6587\uff1a<\/p>\n\n\n\n
final=flag{dffc94e8-0571-4e68-bbc3-f1534766f794}
END OF MANIFEST<\/p>\n\n\n\n
Frame by Frame<\/h2>\n\n\n\n
<\/p>\n\n\n\n
\u95ee\u5377<\/h2>\n\n\n\n
\u7565<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6f6e\u75d5\u7559\u58f0 \u4e00\u4e2aPNG\uff0c\u6254\u8fdb\u968f\u6ce2\u9010\u6d41\u53ef\u4ee5\u5f97\u5230\u672b\u5c3e\u5f88\u957f\u4e00\u4e32\u6570\u636e \u6062\u590d\u51fa\u4e00\u4e2a\u52a0\u5bc6\u7684zip\u6587\u4ef6\uff0c\u518d\u89c2\u5bdf\u539f\u56fe\u7247\u7684exif […]<\/p>\n","protected":false},"author":1,"featured_media":2342,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-2340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-misc"],"_links":{"self":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/comments?post=2340"}],"version-history":[{"count":18,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2340\/revisions"}],"predecessor-version":[{"id":2360,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2340\/revisions\/2360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/media\/2342"}],"wp:attachment":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/media?parent=2340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/categories?post=2340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/tags?post=2340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}