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Remove VLA usage.

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GitOrigin-RevId: 6186e42b8dbaa3c182d9b6d89220e8ae06cb5a6e
This commit is contained in:
levlam 2018-08-14 17:01:13 +03:00
parent 85bb2d8e19
commit b05413262b
1 changed files with 2 additions and 1 deletions
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3
tdutils/td/utils/crypto.cpp
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@ -423,7 +423,8 @@ static void pbkdf2_impl(Slice password, Slice salt, int iteration_count, Mutable
HMAC_CTX_cleanup(&ctx); HMAC_CTX_cleanup(&ctx);
if (iteration_count > 1) { if (iteration_count > 1) {
unsigned char buf[hash_size]; CHECK(hash_size <= 64)
unsigned char buf[64];
std::copy(dest.ubegin(), dest.uend(), buf); std::copy(dest.ubegin(), dest.uend(), buf);
for (int iter = 1; iter < iteration_count; iter++) { for (int iter = 1; iter < iteration_count; iter++) {
if (HMAC(evp_md, password.data(), password_len, buf, hash_size, buf, nullptr) == nullptr) { if (HMAC(evp_md, password.data(), password_len, buf, hash_size, buf, nullptr) == nullptr) {