getDefaultEncoding() always returns 'buffer' in Node.js 20. It requires
some careful justification but the default encoding can be eliminated
from hash.js entirely. The reasoning is almost identical with that in
nodejs#49145 so I won't repeat it here.

Refs: nodejs#47182

getDefaultEncoding() always returns 'buffer' in Node.js 20. It requires
some careful justification but the default encoding can be eliminated
from hash.js entirely. The reasoning is almost identical with that in
#49145 so I won't repeat it here.

Refs: #47182
PR-URL: #49167
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>

Refs: #47182
Refs: #47869
Refs: #47943
Refs: #47998
Refs: #49140
Refs: #49145
Refs: #49167
Refs: #49169
PR-URL: #49170
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

getDefaultEncoding() always returns 'buffer' in Node.js 20. It requires
some careful justification but the default encoding can be eliminated
from sig.js entirely.

In Sign.prototype.update, we can safely remove the conditional
assignment of getDefaultEncoding() to encoding. This is because
SignUpdate() in crypto_sig.cc internally calls node::crypto::Decode,
which returns UTF8 for falsy encoding values. In other words, with the
conditional assignment, StringBytes::Write() ultimately receives the
encoding BUFFER, and without the conditional assignment, it receives the
encoding UTF8. However, StringBytes::Write() treats both encodings
identically, so there is no need to deviate from the internal default
encoding UTF8.

In Sign.prototype.sign, we can also safely remove the conditional
assignment of getDefaultEncoding() to encoding. Whether encoding is
falsy or 'buffer' makes no difference.

In Verify.prototype.verify, we can also safely remove the conditional
assignment of getDefaultEncoding() to sigEncoding. This is because the
function passes the sigEncoding to getArrayBufferOrView(), which passes
it to Buffer.from(). If sigEncoding is 'buffer', getArrayBufferOrView()
instead passes 'utf8' to Buffer.from(). Because the default encoding of
Buffer.from() is 'utf8', passing a falsy encoding to
getArrayBufferOrView() instead of 'buffer' results in the same behavior.

Refs: #47182
PR-URL: #49145
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

getDefaultEncoding() always returns 'buffer' in Node.js 20. It requires
some careful justification but the default encoding can be eliminated
from hash.js entirely. The reasoning is almost identical with that in
#49145 so I won't repeat it here.

Refs: #47182
PR-URL: #49167
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>

Refs: #47182
Refs: #47869
Refs: #47943
Refs: #47998
Refs: #49140
Refs: #49145
Refs: #49167
Refs: #49169
PR-URL: #49170
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>