INNER CODE UNIT · Rust

processed_bytes

AChep/keyguard-app · thirdParty/rust/ocb3-0.1.0-keyguard/src/lib.rs:417

        let processed_bytes = (buffer.len() / (WIDTH * 16)) * (WIDTH * 16);

        (processed_bytes, offset_i[offset_i.len() - 1], checksum_i)
    }

    /// Decrypts plaintext in groups of two.
    ///
    /// Adapted from https://www.cs.ucdavis.edu/~rogaway/ocb/news/code/ocb.c
    fn wide_decrypt(&self, nonce: &Nonce<NonceSize>, buffer: &mut [u8]) -> (usize, Block, Block) {
        const WIDTH: usize = 2;
        let split_into_blocks = crate::util::split_into_two_blocks;

        let mut i = 1;

        let mut offset_i = [Block::default(); WIDTH];
        offset_i[offset_i.len() - 1] = initial_offset(&self.cipher, nonce, TagSize::to_u32());
        let mut checksum_i = Block::default();
        for wide_blocks in buffer.chunks_exact_mut(16 * WIDTH) {

View source record →