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bpo-30102: Call OPENSSL_add_all_algorithms_noconf (#3112)

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The ssl and hashlib modules now call OPENSSL_add_all_algorithms_noconf() on
OpenSSL < 1.1.0. The function detects CPU features and enables optimizations
on some CPU architectures such as POWER8. Patch is based on research from
Gustavo Serra Scalet.

Signed-off-by: Christian Heimes <christian@python.org>
This commit is contained in:
Christian Heimes 2017-09-05 15:47:11 +02:00 • committed by GitHub
parent 52451fbaaf
commit c941e6238a
3 changed files with 13 additions and 2 deletions
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5
Modules/_hashopenssl.c
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@ -1022,8 +1022,11 @@ PyInit__hashlib(void)
{
PyObject *m, *openssl_md_meth_names;
OpenSSL_add_all_digests();
#ifndef OPENSSL_VERSION_1_1
/* Load all digest algorithms and initialize cpuid */
OPENSSL_add_all_algorithms_noconf();
ERR_load_crypto_strings();
#endif
/* TODO build EVP_functions openssl_* entries dynamically based
* on what hashes are supported rather than listing many