4 ms·
No, these APIs are intentionally designed to be equivalent to hashing all data at once - i.e. to make it possible to hash in O(1) space. There's nothing "disfu
by vsl 2y ago
No, these APIs are intentionally designed to be equivalent to hashing all data at once - i.e. to make it possible to hash in O(1) space.
There's nothing "disfunctional" about that.
"Incremental hash function" has a very different meaning and doesn't seem to have any relevance to what is discussed here: https://people.eecs.berkeley.edu/~daw/papers/inchash-cs06.pdf https://people.eecs.berkeley.edu/~daw/papers/inchash-cs06.pd...
- blueflow 2y agoI guess the PHP documentation is wrong then. Look at this: https://www.php.net/manual/en/function.hash-init.php https://www.php.net/manual/en/function.hash-init.php
- ddtaylor 2y agoFor anyone curious PHP ultimately uses this definition in their introduction portion of the hash extension: > This extension provides functions that can be used for direct or incremental processing of arbitrary length messages using a variety of hashing algorithms, including the generation of HMAC values and key derivations including HKDF and PBKDF2.
- deleted 2y ago[deleted]
- Thorrez 2y agoThat page includes an example that shows PHP's incremental hashing is what you describe as "dysfunctional". It hashes "The quick brown fox jumped over the lazy dog." in 1 part, and in 2 parts, and shows that the resulting hashes are equal.
- blueflow 2y agoI did a mistake.