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Delete unused AesCtrCounterPack and XorBytes classes.

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GitOrigin-RevId: 95906d3d54c16928a1250a511e1e66aa8e59c5c6
This commit is contained in:
levlam 2020-09-27 15:47:22 +03:00
parent 4d67801710
commit a9a3acf135
1 changed files with 0 additions and 55 deletions
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55
tdutils/td/utils/crypto.cpp
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@ -310,61 +310,6 @@ struct AesBlock {
static_assert(sizeof(AesBlock) == 16, "");
static_assert(sizeof(AesBlock) == AES_BLOCK_SIZE, "");
class XorBytes {
public:
static void run(const uint8 *a, const uint8 *b, uint8 *c, size_t n) {
static constexpr int BLOCK_SIZE = 16;
auto block_cnt = n / BLOCK_SIZE;
n -= block_cnt * BLOCK_SIZE;
while (block_cnt-- > 0) {
Block<BLOCK_SIZE> a_big = as<Block<BLOCK_SIZE>>(a);
Block<BLOCK_SIZE> b_big = as<Block<BLOCK_SIZE>>(b);
as<Block<BLOCK_SIZE>>(c) = a_big ^ b_big;
a += BLOCK_SIZE;
b += BLOCK_SIZE;
c += BLOCK_SIZE;
}
while (n-- > 0) {
c[n] = a[n] ^ b[n];
}
}
private:
template <size_t N>
struct alignas(N) Block {
uint8 data[N];
Block operator^(const Block &b) const & {
Block res;
for (size_t i = 0; i < N; i++) {
res.data[i] = data[i] ^ b.data[i];
}
return res;
}
};
};
struct AesCtrCounterPack {
static constexpr size_t BLOCK_COUNT = 32;
AesBlock blocks[BLOCK_COUNT];
uint8 *raw() {
return reinterpret_cast<uint8 *>(this);
}
const uint8 *raw() const {
return reinterpret_cast<const uint8 *>(this);
}
static size_t size() {
return sizeof(blocks);
}
void init(AesBlock block) {
blocks[0] = block;
for (size_t i = 1; i < BLOCK_COUNT; i++) {
blocks[i] = blocks[i - 1].inc();
}
}
};
class Evp {
public:
Evp() {