The Next Big SHA? SHA3 Sponge Function Explained - Computerphile
Source: YouTube · Computerphile · published Aug 20, 2025 · 27:36
SHA-3 represents a distinct evolution in the Secure Hash Algorithm family, utilizing a unique "sponge construction" to ensure cryptographic robustness separate from predecessors like SHA-2 and MD5 0:00.
Key Takeaways:
• Unlike previous algorithms, SHA-3 is fundamentally different in its design and implementation compared to standards like SHA-2, SHA-1, and MD5 0:00.
• The function is built around a "sponge construction," a concept illustrated as absorbing and squeezing data 0:13.
• Its intentional divergence from older standards provides a safety net against potential security vulnerabilities found in legacy algorithms 0:30.
By adopting a novel architectural approach, SHA-3 offers a necessary layer of diversity for future-proofing cryptographic security.
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So I thought we could look at finally look at SHA 3 right which is a really interesting variant of a hash function that's very different to the existing hash functions we normally look at things like char 2 char one MD5 right it's designed in a very different way and it's designed around something called a sponge construction right which is why I brought my sponge right and we're going to be squeezing out and making a bit of a mess char 3 or the secure hashing algorithm 3 or secure hash algorithm um is a new development in the char family of hash functions that is very different from its predecessors and that's why it's been designed that way. It it was chosen to be different so that we have some robustness if something happens to one of the previous algorithms you know a security flaw is …