| ▲ | texthompson 4 days ago | |
Why does it matter where the bytes are stored at rest? Isn't everything you need for SHA-256 just the results of the SHA-256 algorithm on every 4096-byte block? I think you could just calculate that as the data is streamed in. | ||
| ▲ | jiggawatts 4 days ago | parent | next [-] | |
The data is not necessarily "streamed" in! That's a significant design feature to allow parallel uploads of a single object using many parts ("blocks"). See: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateMu... | ||
| ▲ | Dylan16807 4 days ago | parent | prev [-] | |
> Isn't everything you need for SHA-256 just the results of the SHA-256 algorithm on every 4096-byte block? No, you need the hash of the previous block before you can start processing the next block. | ||