Struct tink_streaming_aead::subtle::noncebased::ReaderParams

pub struct ReaderParams {
    pub r: Box<dyn Read>,
    pub segment_decrypter: Box<dyn SegmentDecrypter>,
    pub nonce_size: usize,
    pub nonce_prefix: Vec<u8>,
    pub ciphertext_segment_size: usize,
    pub first_ciphertext_segment_offset: usize,
}

ReaderParams contains the options for instantiating a Reader via Reader::new().

Fields

r: Box<dyn Read>

r is the underlying reader being wrapped.

segment_decrypter: Box<dyn SegmentDecrypter>

segment_decrypter provides a method for decrypting segments.

nonce_size: usize

nonce_size is the length of generated nonces. It must match the nonce_size of the Writer used to create the ciphertext, and must be somewhat larger than the size of the common nonce_prefix

nonce_prefix: Vec<u8>

nonce_prefix is a constant that all nonces throughout the ciphertext start with. It’s extracted from the header of the ciphertext.

ciphertext_segment_size: usize

The size of the ciphertext segments, equal to nonce_size plus the size of the plaintext segment.

first_ciphertext_segment_offset: usize

first_ciphertext_segment_offset indicates where the ciphertext actually begins in r. This allows for the existence of overhead in the stream unrelated to this encryption scheme.