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Use explicit EVP_MD_fetch with OpenSSL 3.0, because EVP_sha* fetch algorithm each time and are extremely slow in OpenSSL 3.0.

This commit is contained in:
levlam 2022-08-29 16:19:47 +03:00
parent 3c56140995
commit 398a996ef8
1 changed files with 34 additions and 5 deletions
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39
tdutils/td/utils/crypto.cpp
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@ -688,11 +688,24 @@ static void make_digest(Slice data, MutableSlice output, const EVP_MD *evp_md) {
LOG_IF(FATAL, res != 1);
EVP_MD_CTX_free(ctx);
}
static void init_thread_local_evp_md(const EVP_MD *&evp_md, const char *algorithm) {
evp_md = EVP_MD_fetch(nullptr, algorithm, nullptr);
LOG_IF(FATAL, evp_md == nullptr);
detail::add_thread_local_destructor(create_destructor([&evp_md]() mutable {
EVP_MD_free(const_cast<EVP_MD *>(evp_md));
evp_md = nullptr;
}));
}
#endif
void sha1(Slice data, unsigned char output[20]) {
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
make_digest(data, MutableSlice(output, 20), EVP_sha1());
static TD_THREAD_LOCAL const EVP_MD *evp_md;
if (unlikely(evp_md == nullptr)) {
init_thread_local_evp_md(evp_md, "sha1");
}
make_digest(data, MutableSlice(output, 20), evp_md);
#else
auto result = SHA1(data.ubegin(), data.size(), output);
CHECK(result == output);
@ -702,7 +715,11 @@ void sha1(Slice data, unsigned char output[20]) {
void sha256(Slice data, MutableSlice output) {
CHECK(output.size() >= 32);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
make_digest(data, output, EVP_sha256());
static TD_THREAD_LOCAL const EVP_MD *evp_md;
if (unlikely(evp_md == nullptr)) {
init_thread_local_evp_md(evp_md, "sha256");
}
make_digest(data, output, evp_md);
#else
auto result = SHA256(data.ubegin(), data.size(), output.ubegin());
CHECK(result == output.ubegin());
@ -712,7 +729,11 @@ void sha256(Slice data, MutableSlice output) {
void sha512(Slice data, MutableSlice output) {
CHECK(output.size() >= 64);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
make_digest(data, output, EVP_sha512());
static TD_THREAD_LOCAL const EVP_MD *evp_md;
if (unlikely(evp_md == nullptr)) {
init_thread_local_evp_md(evp_md, "sha512");
}
make_digest(data, output, evp_md);
#else
auto result = SHA512(data.ubegin(), data.size(), output.ubegin());
CHECK(result == output.ubegin());
@ -792,7 +813,11 @@ void Sha256State::init() {
}
CHECK(!is_inited_);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
int err = EVP_DigestInit_ex(impl_->ctx_, EVP_sha256(), nullptr);
static TD_THREAD_LOCAL const EVP_MD *evp_md;
if (unlikely(evp_md == nullptr)) {
init_thread_local_evp_md(evp_md, "sha256");
}
int err = EVP_DigestInit_ex(impl_->ctx_, evp_md, nullptr);
#else
int err = SHA256_Init(&impl_->ctx_);
#endif
@ -830,7 +855,11 @@ void Sha256State::extract(MutableSlice output, bool destroy) {
void md5(Slice input, MutableSlice output) {
CHECK(output.size() >= 16);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
make_digest(input, output, EVP_md5());
static TD_THREAD_LOCAL const EVP_MD *evp_md;
if (unlikely(evp_md == nullptr)) {
init_thread_local_evp_md(evp_md, "md5");
}
make_digest(input, output, evp_md);
#else
auto result = MD5(input.ubegin(), input.size(), output.ubegin());
CHECK(result == output.ubegin());