Struct Encryption

pub struct Encryption {
    pub scheme: Option<String>,
    pub default_key_id: Option<Vec<u8>>,
    pub default_init_vector: Option<Vec<u8>>,
    pub default_pattern: Option<EncryptionPattern>,
    /* private fields */
}

The stream format details payload of a decrypting stream processor. This is a sparsely populated table to specify parameters necessary for decryption other than the data stream. It is only necessary to update fields if they changed, but not an error if the same value is repeated.

Fields

scheme: Option<String>

Specifies which encryption scheme to use, such as ENCRYPTION_SCHEME_CENC. Usage:

• It is required to be set prior to delivery of input packets.
• Changing the scheme mid-stream is only permitted in some scenarios. Once an encrypted scheme is selected for a stream, the scheme may only be set to ENCRYPTION_SCHEME_UNENCRYPTED or that same initial encrypted scheme. The scheme may be set to ENCRYPTION_SCHEME_UNENCRYPTED at any point.

default_key_id: Option<Vec<u8>>

Identifies the key that should be used for decrypting subsequent data. Usage:

• It is required to be set prior to delivery of input packets to a decryptor.
• This may be changed multiple times during a data stream.

default_init_vector: Option<Vec<u8>>

Used in combination with a key and a block of content to create the first cipher block in a chain and derive subsequent cipher blocks in a cipher block chain. Usage:

• It is required to be set prior to the delivery of input packets to a decryptor.
• This may be changed multiple times during a data stream.

default_pattern: Option<EncryptionPattern>

Used to identify the clear and encrypted blocks for pattern based encryption. Usage:

• This is not allowed for CENC and CBC1 and required for CENS and CBCS.
• If required, it must be set prior to the delivery of input packets to a decryptor.
• This may be changed multiple times during a data stream.

Trait Implementations

impl Clone for Encryption

fn clone(&self) -> Encryption

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Encryption

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<D: ResourceDialect> Decode<Encryption, D> for Encryption

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl Default for Encryption

fn default() -> Encryption

Returns the “default value” for a type.

impl<D: ResourceDialect> Encode<Encryption, D> for &Encryption

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for Encryption

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TypeMarker for Encryption

type Owned = Encryption

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for Encryption

type Borrowed<'a> = &'a Encryption

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow(value: &<Self as TypeMarker>::Owned) -> Self::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Persistable for Encryption

impl StructuralPartialEq for Encryption