A company developing and distributing open source applications realizes that attackers are copying the publicly available, open source code and inserting malware into the code.Which type of cryptographic tool should the company use to protect the integrity of its open source applications? Block cipher Hash functions Symmetric cryptography Asymmetric cryptography
Question
A company developing and distributing open source applications realizes that attackers are copying the publicly available, open source code and inserting malware into the code.Which type of cryptographic tool should the company use to protect the integrity of its open source applications? Block cipher Hash functions Symmetric cryptography Asymmetric cryptography
Solution
The company should use Hash functions. This cryptographic tool can help ensure the integrity of their open source applications. Here's how:
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The company would first generate a hash value for the original, clean code. This is done by running the code through a hash function, which then produces a unique hash value.
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This hash value is then made publicly available, often alongside the downloadable open source code.
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When users download the code, they can run the same hash function on it. This will generate a hash value.
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Users then compare this hash value with the one provided by the company. If the values match, it means the code has not been tampered with. If the values do not match, it indicates that the code may have been altered, such as by inserting malware.
This way, hash functions can help protect the integrity of the open source applications.
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