task8

mover/linqining/code/task8/call.sh

@@ -0,0 +1,2 @@
+sui client call --package 0x097a3833b6b5c62ca6ad10f0509dffdadff7ce31e1d86e63e884a14860cedc0f --module lets_move --function get_flag \
+--args  "SnyLUIXawx" linqining 0x19e76ca504c5a5fa5e214a45fca6c058171ba333f6da897b82731094504d5ab9 0x8 --gas-budget 3000000

mover/linqining/code/task8/challenge/Move.toml

@@ -0,0 +1,37 @@
+[package]
+name = "challenge"
+edition = "2024.beta" # edition = "legacy" to use legacy (pre-2024) Move
+# license = ""           # e.g., "MIT", "GPL", "Apache 2.0"
+# authors = ["..."]      # e.g., ["Joe Smith (joesmith@noemail.com)", "John Snow (johnsnow@noemail.com)"]
+
+[dependencies]
+Sui = { git = "https://github.com/MystenLabs/sui.git", subdir = "crates/sui-framework/packages/sui-framework", rev = "framework/testnet" }
+
+# For remote import, use the `{ git = "...", subdir = "...", rev = "..." }`.
+# Revision can be a branch, a tag, and a commit hash.
+# MyRemotePackage = { git = "https://some.remote/host.git", subdir = "remote/path", rev = "main" }
+
+# For local dependencies use `local = path`. Path is relative to the package root
+# Local = { local = "../path/to" }
+
+# To resolve a version conflict and force a specific version for dependency
+# override use `override = true`
+# Override = { local = "../conflicting/version", override = true }
+
+[addresses]
+challenge = "0x0"
+
+# Named addresses will be accessible in Move as `@name`. They're also exported:
+# for example, `std = "0x1"` is exported by the Standard Library.
+# alice = "0xA11CE"
+
+[dev-dependencies]
+# The dev-dependencies section allows overriding dependencies for `--test` and
+# `--dev` modes. You can introduce test-only dependencies here.
+# Local = { local = "../path/to/dev-build" }
+
+[dev-addresses]
+# The dev-addresses section allows overwriting named addresses for the `--test`
+# and `--dev` modes.
+# alice = "0xB0B"
+

mover/linqining/code/task8/challenge/sources/challenge.move

@@ -0,0 +1,90 @@
+
+/// Module: challenge
+module challenge::challenge;
+
+use std::ascii::{String, string};
+use std::hash;
+use sui::event;
+use sui::bcs;
+use sui::random;
+use sui::random::Random;
+use sui::transfer::share_object;
+use std::debug::print;
+use sui::address;
+
+
+public struct Challenge has drop {
+    id:ID,
+    str: String,
+    difficulity: u64,
+    ture_num: u64
+}
+
+
+
+
+#[test]
+fun test_challenge_fail() {
+    let challenge:Challenge = Challenge{
+        id: object::id_from_address(@0x19e76ca504c5a5fa5e214a45fca6c058171ba333f6da897b82731094504d5ab9),
+        str:std::ascii::string(b"M9[fZ#glu@qF5J8zd:m)*V87>C*\\Y"),
+        difficulity: 3,
+        ture_num: 108,
+    };
+    // let cbyte = bcs::to_bytes(&challenge);
+    // print(&cbyte.to_string());
+    let mut prefix_sum: u32 = 1;
+    let name = std::ascii::string(b"proof");
+    let borrowname = std::ascii::string(b"getproof");
+    let mut proof = b"1234567892";
+    let mut strlen:u8 =30;
+    let call_addr = @0xc1f4704452819f75c258fe3a01e54d6561899e3478f818625ee8be716fbdd007;
+    print(&call_addr.to_bytes());
+    while (prefix_sum!=0){
+        strlen = strlen+1;
+        let mut proof = b"SnyLUIXawx";
+        let mut full_proof: vector<u8> = vector::empty<u8>();
+        vector::append<u8>(&mut full_proof, proof);
+        vector::append<u8>(&mut full_proof,  call_addr.to_bytes());
+        vector::append<u8>(&mut full_proof, bcs::to_bytes(&challenge));
+
+        let hash: vector<u8> = hash::sha3_256(full_proof);
+        // print(&name);
+        print(&proof);
+        prefix_sum = 0;
+        let mut i: u64 = 0;
+        while (i < challenge.difficulity) {
+            let borrorval = (*vector::borrow(&hash, i) as u32);
+
+            prefix_sum = prefix_sum + borrorval;
+            i = i + 1;
+        };
+
+        print(&prefix_sum);
+        if (prefix_sum==0){
+            print(&borrowname);
+            print(&proof);
+            break
+        }
+    };
+    return
+
+}
+
+fun getRandomString(laststr:vector<u8>,strLen:u8): String {
+    let mut gen = sui::random::new_generator_from_seed_for_testing(laststr);
+
+    let mut str_len = strLen;
+
+    let mut rand: vector<u8> = b"";
+    while (str_len != 0) {
+        let rand_num = random::generate_u8_in_range(&mut gen, 34, 126);
+        vector::push_back(&mut rand, rand_num);
+        str_len = str_len - 1;
+    };
+
+    string(rand)
+}
+
+
+

mover/linqining/code/task8/challenge/tests/challenge_tests.move

@@ -0,0 +1,2 @@
+
+module challenge::challenge_tests;

mover/linqining/code/task8/miner/go.mod

@@ -0,0 +1,8 @@
+module example.com/m/v2
+
+go 1.23.0
+
+require (
+	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+)

mover/linqining/code/task8/miner/main.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"encoding/hex"
+	"fmt"
+	"golang.org/x/crypto/sha3"
+	"math/rand"
+	"time"
+)
+
+func main() {
+	preFixSum := 1
+
+	addrByte := bytesFromHex("c1f4704452819f75c258fe3a01e54d6561899e3478f818625ee8be716fbdd007")
+	fmt.Println(addrByte)
+	objByte := bytesFromHex("19e76ca504c5a5fa5e214a45fca6c058171ba333f6da897b82731094504d5ab91d4d395b665a23676c75407146354a387a643a6d292a5638373e432a5c5903000000000000006c00000000000000")
+	fmt.Println(objByte)
+
+	// Create a new hash & write input string
+	for preFixSum != 0 {
+		proof := getRandomString(10)
+		hash := sha3.New256()
+		_, _ = hash.Write([]byte(proof))
+		hash.Write(addrByte)
+		hash.Write(objByte)
+		sha3 := hash.Sum(nil)
+
+		preFixSum = 0
+		for i := 0; i < 3; i++ {
+			preFixSum = preFixSum + int(sha3[i])
+		}
+		fmt.Println(preFixSum)
+		if preFixSum == 0 {
+			fmt.Println("getproof")
+			fmt.Println(proof)
+			break
+		}
+	}
+	return
+}
+
+func getRandomString(n int) string {
+	const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	rand.Seed(time.Now().UnixNano())
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(len(letters))]
+	}
+	return string(b)
+}
+
+func bytesFromHex(hexstr string) []byte {
+	bytes, err := hex.DecodeString(hexstr)
+	fmt.Println(err)
+	return bytes
+}

mover/linqining/readme.md

@@ -54,5 +54,5 @@
 - [x] flag hash : 7SW1NGXYLjPuLLbxrHe4ceDwDe1xjcuvEBCjub11GMYG
 
 ##   08 Move CTF Lets Move
-- [] proof : 
-- [] flag hash :
+- [x] proof : SnyLUIXawx
+- [x] flag hash : FT2f1fkHGHz7Wj9Hq6KvSZXpbRJkK5QiBLdNyLsMCJKY