What are the advantages and disadvantages of using the rand() function in C++ for generating cryptographic keys in blockchain technology?

3 answers

• SellfiredamagedhousectSep 01, 2020 · 5 years ago
  Using the rand() function in C++ for generating cryptographic keys in blockchain technology has its advantages and disadvantages. On the one hand, it is a simple and convenient method that requires minimal code. However, the rand() function is not suitable for generating secure cryptographic keys as it is not truly random. The generated keys may have patterns or be predictable, which can make them vulnerable to attacks. It is recommended to use a more secure random number generator for generating cryptographic keys in blockchain technology.
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• Aung Zaw minJun 15, 2025 · 8 months ago
  Well, let me tell you about the rand() function in C++. It's a quick and easy way to generate random numbers, but when it comes to generating cryptographic keys for blockchain technology, it's not the best choice. The rand() function is not truly random, and the keys it generates may have patterns or be predictable. This can pose a security risk in blockchain systems where the strength of cryptographic keys is crucial. So, it's better to use a more secure method for generating cryptographic keys in blockchain technology.
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• Jeya20 KumarJan 20, 2024 · 2 years ago
  When it comes to generating cryptographic keys in blockchain technology using the rand() function in C++, there are some advantages and disadvantages to consider. The main advantage is that it is a simple and easy-to-use function that requires minimal code. However, the main disadvantage is that the rand() function is not truly random and can generate keys with patterns or predictability. This can compromise the security and reliability of the generated keys, making them vulnerable to attacks. To ensure the security of cryptographic keys in blockchain technology, it is recommended to use a more secure random number generator.
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