openssl/providers/implementations
Matt Caswell 32d3c3abf3 Optimise PKEY decoders
The most expensive part of using a PKEY decoder is the
OSSL_DECODER_CTX_new_for_pkey() call. This builds up all of the decoder
chains, which is a complex and time consuming operation. However, if no
new providers have been loaded/unloaded since the last time it was called
we can expect the same results for the same parameters. Note that this
operation takes place *before* we event parse the data for decoding so it
is not dependent on the parsed data at all.

We introduce a cache for OSSL_DECODER_CTX objects. If we have been called
with the same parameters then we just duplicate an existing
OSSL_DECODER_CTX. This should be significantly faster than creating a new
one every time.

Partially addressed the issue in #15199

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21426)
2023-07-17 08:12:06 +10:00
..
asymciphers If oaep_md is not initialized, correctly initialize it 2023-05-23 15:10:09 +02:00
ciphers Do not ignore empty associated data with AES-SIV mode 2023-07-14 12:59:02 +02:00
digests Add support for SHA256/192 2023-06-28 08:00:43 +10:00
encode_decode Fix typos found by codespell 2023-06-15 10:11:46 +10:00
exchange configure: introduce no-ecx to remove ECX related feature 2023-06-14 13:06:22 +10:00
include/prov prov(legacy): update to structure based atomics 2023-07-01 21:18:25 +10:00
kdfs Fix typos found by codespell 2023-06-15 10:11:46 +10:00
kem configure: introduce no-ecx to remove ECX related feature 2023-06-14 13:06:22 +10:00
keymgmt prov(legacy): update to structure based atomics 2023-07-01 21:18:25 +10:00
macs Replaced '{ 0, NULL }' with OSSL_DISPATCH_END in OSSL_DISPATCH arrays 2023-04-21 16:19:11 +02:00
rands Add limited support for WebAssembly WASI target 2023-07-06 12:54:17 +10:00
signature configure: introduce no-ecx to remove ECX related feature 2023-06-14 13:06:22 +10:00
storemgmt Optimise PKEY decoders 2023-07-17 08:12:06 +10:00
build.info Add KEM (Key encapsulation mechanism) support to providers 2020-09-19 18:08:46 +10:00