Kevin Tsai

我被28題 Hash搞瘋了,誰能幫幫我,差這題就通過了

2

不管怎麼做都是80分, 幫我看哪有問題吧@@ 1. 哈希函数（hash function）是一个密码学概念，它可以将任意长度的消息转换为一个固定长度的值，这个值也称作哈希（hash）。 在Solidity语言中，最常用的哈希函数为____，它也是函数选择器所应用的函数。**keccak-256** (這題答案很怪，最常用的是keccak256，但是只有sha256能正確執行，題目筆誤？) 2. 一个好的哈希函数应当包含以下几种特性：单向性、灵敏性、高效性、均一性、抗碰撞性。 下列关于这些特性中，描述不正确的一项是：**对于一个哈希函数而言，强抗碰撞性比弱抗碰撞性更难满足** 3. 【原题已修改】如果对于某个哈希函数，我们统计大量不同字符串对应的哈希值（二进制串），发现其前 n 位全部为 0 的频率恰好约为 1/2^n，则我们认为该哈希函数具有良好的：**均一性** 4. 我们对两个非常相近的字符串 "Hello world!" 和 "Hello world." 求取 sha3-256 哈希值，其结果如下： sha3-256("Hello world!") =...

Introducing the exa.ai Tool: Enhancing Web Content Search Precision with Embedding Technology

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### Self Checks - [X] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [X] I confirm that I am using English to submit this...

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Can the minimum threshold for knowledge base annotation be lowered?

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Add New Embedding Model to Voyage

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The first time setting up Brave Search and entering the API key, an error occurs when clicking "Save."

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### Self Checks - [X] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [X] I have searched for existing...

The LLM Node cannot read file with a custom field type of "File" when using a multimodal model.

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The file upload functionality does not support non-image file formats.

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### Self Checks - [X] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [X] I have searched for existing...

### Self Checks - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this...