Enum self_encryption::DataMap

pub enum DataMap {
    Chunks(Vec<ChunkDetails>),
    Content(Vec<u8>),
    None,
}

Holds the information that is required to recover the content of the encrypted file. Depending on the file size, this is held as a vector of ChunkDetails, or as raw data.

Variants

Chunks(Vec<ChunkDetails>)

If the file is large enough (larger than 3072 bytes, 3 * MIN_CHUNK_SIZE), this algorithm holds the list of the file's chunks and corresponding hashes.

Content(Vec<u8>)

Very small files (less than 3072 bytes, 3 * MIN_CHUNK_SIZE) are not split into chunks and are put in here in their entirety.

None

empty datamap

Methods

impl DataMap

pub fn len(&self) -> u64

Original (pre-encryption) size of file in DataMap.

pub fn get_chunks(&self) -> Vec<ChunkDetails>

Returns the list of chunks pre and post encryption hashes if present.

pub fn get_sorted_chunks(&self) -> Vec<ChunkDetails>

The algorithm requires this to be a sorted list to allow get_pad_iv_key to obtain the correct pre-encryption hashes for decryption/encryption.

pub fn has_chunks(&self) -> bool

Whether the content is stored as chunks or as raw data.

pub fn chunks_sort(chunks: &mut [ChunkDetails])

Sorts list of chunks using quicksort

Trait Implementations

impl Clone for DataMap

fn clone(&self) -> DataMap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Eq for DataMap

impl Ord for DataMap

fn cmp(&self, other: &DataMap) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<DataMap> for DataMap

fn eq(&self, other: &DataMap) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &DataMap) -> bool

This method tests for !=.

impl PartialOrd<DataMap> for DataMap

fn partial_cmp(&self, other: &DataMap) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &DataMap) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &DataMap) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &DataMap) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &DataMap) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Debug for DataMap

fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl StructuralPartialEq for DataMap

impl StructuralEq for DataMap

impl Serialize for DataMap

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for DataMap

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.