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remove usage of AES_ige_encrypt

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GitOrigin-RevId: cceb1d42c69724e99da4a419e5cf2c06ad94a373
This commit is contained in:
Arseny Smirnov 2020-06-18 12:34:22 +03:00
parent 0275ecdcbc
commit 7e96f93605
1 changed files with 0 additions and 21 deletions
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21
tdutils/td/utils/crypto.cpp
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@ -465,21 +465,6 @@ void AesState::decrypt(const uint8 *src, uint8 *dst, int size) {
impl_->evp.decrypt(src, dst, size); impl_->evp.decrypt(src, dst, size);
} }
static void aes_ige_xcrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to, bool encrypt_flag) {
CHECK(aes_key.size() == 32);
CHECK(aes_iv.size() == 32);
AES_KEY key;
int err;
if (encrypt_flag) {
err = AES_set_encrypt_key(aes_key.ubegin(), 256, &key);
} else {
err = AES_set_decrypt_key(aes_key.ubegin(), 256, &key);
}
LOG_IF(FATAL, err != 0);
CHECK(from.size() <= to.size());
AES_ige_encrypt(from.ubegin(), to.ubegin(), from.size(), &key, aes_iv.ubegin(), encrypt_flag);
}
class AesIgeStateImpl { class AesIgeStateImpl {
public: public:
void init(Slice key, Slice iv, bool encrypt) { void init(Slice key, Slice iv, bool encrypt) {
@ -587,18 +572,12 @@ void AesIgeState::decrypt(Slice from, MutableSlice to) {
} }
void aes_ige_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) { void aes_ige_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
if (from.size() <= 128) {
return aes_ige_xcrypt(aes_key, aes_iv, from, to, true);
}
AesIgeStateImpl state; AesIgeStateImpl state;
state.init(aes_key, aes_iv, true); state.init(aes_key, aes_iv, true);
state.encrypt(from, to); state.encrypt(from, to);
} }
void aes_ige_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) { void aes_ige_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
if (from.size() <= 128) {
return aes_ige_xcrypt(aes_key, aes_iv, from, to, false);
}
AesIgeStateImpl state; AesIgeStateImpl state;
state.init(aes_key, aes_iv, false); state.init(aes_key, aes_iv, false);
state.decrypt(from, to); state.decrypt(from, to);