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Reimplement HMAC for OpenSSL 3.0.0.

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This commit is contained in:
levlam 2020-12-22 19:24:26 +03:00
parent 9985f6db6a
commit 7d1e5bca55
1 changed files with 43 additions and 1 deletions
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44
tdutils/td/utils/crypto.cpp
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@ -28,11 +28,17 @@
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/md5.h>
#include <openssl/opensslv.h>
#include <openssl/pem.h>
#include <openssl/rsa.h>
#include <openssl/sha.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#include <openssl/core_names.h>
#include <openssl/params.h>
#endif
#if TD_HAVE_ZLIB
#include <zlib.h>
#endif
@ -874,22 +880,58 @@ void pbkdf2_sha512(Slice password, Slice salt, int iteration_count, MutableSlice
pbkdf2_impl(password, salt, iteration_count, dest, EVP_sha512());
}
void hmac_impl(const EVP_MD *evp_md, Slice key, Slice message, MutableSlice dest) {
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
static void hmac_impl(const char *digest, Slice key, Slice message, MutableSlice dest) {
EVP_MAC *hmac = EVP_MAC_fetch(nullptr, "HMAC", nullptr);
LOG_IF(FATAL, hmac == nullptr);
EVP_MAC_CTX *ctx = EVP_MAC_CTX_new(hmac);
LOG_IF(FATAL, ctx == nullptr);
OSSL_PARAM params[3];
params[0] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST, const_cast<char *>(digest), 0);
params[1] =
OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, const_cast<unsigned char *>(key.ubegin()), key.size());
params[2] = OSSL_PARAM_construct_end();
int res = EVP_MAC_CTX_set_params(ctx, params);
LOG_IF(FATAL, res != 1);
res = EVP_MAC_init(ctx);
LOG_IF(FATAL, res != 1);
res = EVP_MAC_update(ctx, message.ubegin(), message.size());
LOG_IF(FATAL, res != 1);
res = EVP_MAC_final(ctx, dest.ubegin(), nullptr, dest.size());
LOG_IF(FATAL, res != 1);
EVP_MAC_CTX_free(ctx);
EVP_MAC_free(hmac);
}
#else
static void hmac_impl(const EVP_MD *evp_md, Slice key, Slice message, MutableSlice dest) {
unsigned int len = 0;
auto result = HMAC(evp_md, key.ubegin(), narrow_cast<int>(key.size()), message.ubegin(),
narrow_cast<int>(message.size()), dest.ubegin(), &len);
CHECK(result == dest.ubegin());
CHECK(len == dest.size());
}
#endif
void hmac_sha256(Slice key, Slice message, MutableSlice dest) {
CHECK(dest.size() == 256 / 8);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
hmac_impl("SHA256", key, message, dest);
#else
hmac_impl(EVP_sha256(), key, message, dest);
#endif
}
void hmac_sha512(Slice key, Slice message, MutableSlice dest) {
CHECK(dest.size() == 512 / 8);
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
hmac_impl("SHA512", key, message, dest);
#else
hmac_impl(EVP_sha512(), key, message, dest);
#endif
}
static int get_evp_pkey_type(EVP_PKEY *pkey) {