21 lines
747 B
Rust
21 lines
747 B
Rust
use crate::bytes::Bytes;
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use openssl::symm;
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pub fn encrypt(key: &Bytes, nonce: u64, data: &Bytes) -> Bytes {
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decrypt(key, nonce, data)
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}
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pub fn decrypt(Bytes(key): &Bytes, nonce: u64, Bytes(data): &Bytes) -> Bytes {
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let cipher_type = symm::Cipher::aes_128_ecb();
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let block_size = cipher_type.block_size();
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let mut result: Vec<u8> = vec![];
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for (counter, cipher) in (0_u64..).zip(data.chunks(block_size)) {
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let mut keyinput = nonce.to_le_bytes().to_vec();
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keyinput.append(&mut counter.to_le_bytes().to_vec());
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let keystream = crate::cbc::enrypt_aes_128_ecb_block(key, &keyinput);
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let mut data = crate::utils::xor(&keystream, cipher);
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result.append(&mut data);
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}
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Bytes(result)
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}
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