There are many use-cases where a PHP user is currently using sodium_compat's implementation of this low-level XChaCha20 API. For example, multi-part message processing (in low-memory settings) for a ciphertext that was encrypted with XChaCha20-Poly1305 (rather than the secretstream API).
Adding this function to ext/sodium offers better performance and lowers users' memory usage with the polyfill, and ensures that users coming from other languages that provide libsodium bindings have a more consistent experience with our bindings. This is a win-win.
This patch follows the libsodium precedent of adding functions instead of optional parameters to existing functions. The parameter order is also consistent with the C API.
https://doc.libsodium.org/advanced/stream_ciphers/xchacha20#usage
Closes GH-8276.
Both tests were skipped because of a typo in the checked constant
name.
The scalarmult test was using illegal test vectors. The new test
is based on:
6d566070b4/test/default/scalarmult_ristretto255.c
The $L value contained one extra null byte. The number of "false"
return values was too small.
scalar_invert() doesn't return a valid point -- not sure on that
one.
1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |
Paragon Initiative Enterprises is aware of PHP applications that use sodium_compat's ParagonIE\Sodium\Core\XChaCha20 class directly for stream encryption.
Greater performance and security assurance is offered by exposing libsodium's crypto_stream_xchacha20 API to PHP users.
It's acceptable to only include this change in PHP 8.1+; the offending applications are more than welcome to either install ext/sodium from PECL or upgrade to 8.1 when it comes out later this year.
Ref: https://github.com/jedisct1/libsodium-php/pull/211
Currently, most skip checks are just for making sure an extension is
available. Even with recent addition of skip caching, this makes tests
needlessly slow:
* Checks for the same extension in its tests can have small differences
impacting cacheability.
* Even identical skip checks in two tests can still be executed twice if
they're run by different workers.
To remedy this, I'm repurposing the existing --EXTENSIONS-- section of
.phpt files to specify wjich extensions are required for current test to
run. Current behavior:
1) If the extension is already visible to PHP, all is good
2) If it isn't, assume it's present as a shared module and attempt to add
it via a command line parameter
3) If that works, all is good
4) If it doesn't, PHP fails with a cryptic error message trying to
execute the test itself
After this commit:
1) and 2) are kept unchanged
3) Check if shared extension file from 2) is actually present
4) Skip the test if it isn't
Other benefits include clear skip reasons (vs. sometimes none in many
current skip checks) and moving test information from code to metadata,
opening more opportunities for search and analysis.
Since --EXTENSIONS-- is barely ever used, this change poses no risk of
hidden failures.
As a demonstration of the new approach, this commit migrates one
extension to it. If merged, I will migrate other extensions in
subsequent PRs.
Closes GH-6787.
This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the behavior
consistent with userland functions, where null is never accepted
for non-nullable arguments.
This change is expected to cause quite a lot of fallout. In most
cases, calling code should be adjusted to avoid passing null. In
some cases, PHP should be adjusted to make some function arguments
nullable. I have already fixed a number of functions before landing
this, but feel free to file a bug if you encounter a function that
doesn't accept null, but probably should. (The rule of thumb for
this to be applicable is that the function must have special behavior
for 0 or "", which is distinct from the natural behavior of the
parameter.)
RFC: https://wiki.php.net/rfc/deprecate_null_to_scalar_internal_arg
Closes GH-6475.
We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.
Of course, zend_bool is retained as an alias.
The hash is used to check whether the arginfo file needs to be
regenerated. PHP-Parser will only be downloaded if this is actually
necessary.
This ensures that release artifacts will never try to regenerate
stubs and thus fetch PHP-Parser, as long as you do not modify any
files.
Closes GH-5739.
Closes GH-5353. From now on, PHP will have reflection information
about default values of parameters of internal functions.
Co-authored-by: Nikita Popov <nikita.ppv@gmail.com>
