checksums

简明释义

英[ˈtʃɛk.sʌm]美[ˈtʃɛk.sʌm]

n. 总和检查（checksum 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.These algorithms can be used to compute checksums, message digests, and other signatures.

这些算法可用于计算校验和，消息摘要，和其他签名。

2.Verify if the checksums match the original data.

检查校验和是否匹配原来的数据。

3.Journal checksums Ext4 adds a checksum to the journal data, which improves reliability and performance.

日志checksumExt4给日志数据添加了检查和(checksum)功能，这能提高可靠性和性能。

4.The size of the file is different from the original, but dumping each file and calculating the MD5 hash shows that their checksums are the same.

虽然大小不同于原文件，但是转储每一个文件并计算MD5哈希显示了它们的校验和是相同的。

5.Delay's first version was a command-line application which verified the files checksums using MD5, CRC-32, or SHA-1.

Delay发布的第一版本是命令行应用程序，可用于检验使用了MD 5、CRC - 32或SHA - 1算法的文件验证码。

6.RAID-Z is constantly verifying data checksums for integrity and is able to identify blocks needing to be rebuilt.

RAID - z会经常检验数据校验和，以确认完整性，它还能够识别需要重新构建的块。

7.When a client creates an HDFS file, it computes a checksum of each block of the file and stores these checksums in a separate hidden file in the same HDFS namespace.

当某个客户端创建一个新的HDFS文件，会计算这个文件每个block的校验和，并作为一个单独的隐藏文件保存这些校验和在同一个HDFS namespace下。

8.You can compare the checksums 校验和 of the original and downloaded files to confirm they match.

您可以比较原始文件和下载文件的checksums 校验和以确认它们是否匹配。

9.Software developers often use checksums 校验和 to detect any changes in the source code.

软件开发者经常使用checksums 校验和来检测源代码中的任何变化。

10.The system automatically generates checksums 校验和 for every uploaded file to prevent corruption.

系统会自动为每个上传的文件生成checksums 校验和以防止损坏。

11.In data transmission, checksums 校验和 are used to detect errors that may occur during the transfer.

在数据传输中，checksums 校验和用于检测传输过程中可能发生的错误。

12.When downloading files from the internet, it's important to verify the checksums 校验和 to ensure the file integrity.

从互联网下载文件时，验证checksums 校验和以确保文件完整性是很重要的。

作文

In today's digital world, data integrity is paramount. One of the key tools used to ensure that data remains unchanged and uncorrupted during transmission or storage is the use of checksums. A checksum is a value calculated from a data set, typically using a specific algorithm, and it serves as a fingerprint for that data. When data is sent over a network, the sender computes the checksum of the original data and sends both the data and the checksum to the receiver. Upon receiving the data, the receiver calculates the checksum again. If the two checksums match, it is highly likely that the data has not been altered; if they differ, it indicates that some form of corruption has occurred.The process of generating a checksum is relatively straightforward. Various algorithms can be used, such as MD5, SHA-1, or CRC32, each with its own level of complexity and security. For instance, while MD5 is fast and widely used, it is no longer considered secure against intentional tampering due to vulnerabilities discovered over the years. On the other hand, SHA-256 offers a much higher level of security and is commonly used in applications requiring strong data integrity checks.The importance of checksums extends beyond just data transmission. They are also critical in ensuring file integrity during downloads. For example, when you download software from the internet, the website often provides a checksum for the file. After downloading, you can calculate the checksum of the downloaded file and compare it with the one provided. If they match, you can be confident that the file has not been tampered with or corrupted during the download process.Moreover, checksums play a significant role in backup systems. When backing up data, a checksum can be generated for each file. During restoration, the system can verify the checksums to ensure that the files have been correctly restored and are intact. This verification step is crucial, especially for critical data that must remain unchanged.However, it is essential to note that while checksums are effective at detecting accidental errors or corruption, they are not foolproof against malicious attacks. An attacker could potentially alter both the data and the checksum to make it appear as though nothing has changed. Therefore, relying solely on checksums for security is insufficient. It is advisable to implement additional security measures, such as encryption and more robust authentication methods, to safeguard sensitive information.In conclusion, checksums are a vital component of data integrity in the digital age. They provide a simple yet effective means of verifying that data has not been altered during transmission or storage. Whether in network communications, file downloads, or backup processes, checksums help ensure that the data we rely on remains trustworthy. As technology continues to evolve, understanding and utilizing checksums will remain crucial for anyone involved in managing or transmitting data.

在当今数字世界中，数据完整性至关重要。确保数据在传输或存储过程中保持不变和未损坏的关键工具之一是使用校验和。校验和是从数据集计算出的值，通常使用特定算法，它作为该数据的指纹。当数据通过网络发送时，发送方计算原始数据的校验和并同时发送数据和校验和给接收方。在接收到数据后，接收方再次计算校验和。如果两个校验和匹配，则很可能数据没有被更改；如果它们不同，则表明某种形式的损坏已发生。生成校验和的过程相对简单。可以使用多种算法，例如MD5、SHA-1或CRC32，每种算法具有不同的复杂性和安全性。例如，虽然MD5速度快且广泛使用，但由于发现的漏洞，现在不再被认为是安全的，尤其是在针对故意篡改的情况下。另一方面，SHA-256提供了更高的安全级别，通常用于需要强数据完整性检查的应用程序。校验和的重要性不仅限于数据传输。它们在确保下载期间文件的完整性方面也至关重要。例如，当您从互联网下载软件时，网站通常会提供文件的校验和。下载后，您可以计算下载文件的校验和并将其与提供的进行比较。如果它们匹配，您可以确信该文件在下载过程中没有被篡改或损坏。此外，校验和在备份系统中也发挥着重要作用。在备份数据时，可以为每个文件生成校验和。在恢复过程中，系统可以验证校验和以确保文件已正确恢复且完好无损。这个验证步骤至关重要，特别是对于必须保持不变的关键数据。然而，需要注意的是，虽然校验和在检测意外错误或损坏方面有效，但它们并不能防止恶意攻击。攻击者可能会同时更改数据和校验和，使其看起来似乎没有变化。因此，单靠校验和来保证安全是不够的。建议实施额外的安全措施，例如加密和更强的身份验证方法，以保护敏感信息。总之，校验和是数字时代数据完整性的关键组成部分。它们提供了一种简单而有效的手段来验证数据在传输或存储过程中没有被更改。无论是在网络通信、文件下载还是备份过程中，校验和都有助于确保我们依赖的数据保持可信。随着技术的不断发展，理解和利用校验和将对任何涉及管理或传输数据的人来说仍然至关重要。