Cryptocurrency Q&A
What is the problem with SHA-256?
What is the problem with SHA-256?
CharmedFantasy
Fri Dec 06 2024
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6 answers
1147
I've heard some concerns about the security of SHA-256 and I'm wondering what the specific issues are with this hashing algorithm. Could someone explain the problem with SHA-256?
6 answers
Davide
Sat Dec 07 2024
The attacker can achieve this even without knowing the secret key used in the hashing process.
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Claudio
Sat Dec 07 2024
Cryptographic algorithms are fundamental in ensuring the security of digital data.
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SamsungShineBrightnessRadiance
Sat Dec 07 2024
However, a significant vulnerability exists in many commonly used hashing algorithms.
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CryptoWanderer
Sat Dec 07 2024
In simpler terms, if Hash(Key + Message) is known, the attacker can derive Hash(Key + Message + extra) without the key.
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KimonoGlory
Sat Dec 07 2024
Specifically, algorithms like SHA256 are susceptible to a length extension attack.
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