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Fix aes_ige_encrypt/aes_ige_decrypt.

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GitOrigin-RevId: 7f4a7f86e1fbabe5bfe020fe95586a6030765977
This commit is contained in:
levlam 2020-09-22 18:05:58 +03:00
parent 3522d8dae0
commit 4357a24a1c
1 changed files with 9 additions and 0 deletions
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9
tdutils/td/utils/crypto.cpp
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@ -479,6 +479,13 @@ class AesIgeStateImpl {
encrypted_iv_.load(iv.ubegin());
plaintext_iv_.load(iv.ubegin() + AES_BLOCK_SIZE);
}
void get_iv(MutableSlice iv) {
CHECK(iv.size() == 32);
encrypted_iv_.store(iv.ubegin());
plaintext_iv_.store(iv.ubegin() + AES_BLOCK_SIZE);
}
void encrypt(Slice from, MutableSlice to) {
CHECK(from.size() % AES_BLOCK_SIZE == 0);
CHECK(to.size() >= from.size());
@ -575,12 +582,14 @@ void aes_ige_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlic
AesIgeStateImpl state;
state.init(aes_key, aes_iv, true);
state.encrypt(from, to);
state.get_iv(aes_iv);
}
void aes_ige_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
AesIgeStateImpl state;
state.init(aes_key, aes_iv, false);
state.decrypt(from, to);
state.get_iv(aes_iv);
}
static void aes_cbc_xcrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to, bool encrypt_flag) {