Struct GcmMessageParams 

pub struct GcmMessageParams<'a> { /* private fields */ }

Parameters for message based AES-GCM operations.

Implementations

impl<'a> GcmMessageParams<'a>

pub fn new( iv: &'a mut [u8], iv_fixed_bits: Ulong, iv_generator: GeneratorFunction, tag: &'a mut [u8], ) -> Result<Self, Error>

Construct GCM parameters for message based operations

Arguments

iv - The initialization vector. This must be non-empty. In PKCS#11 3.0, the maximum length of the IV is 256 bytes. A 12-byte IV may be processed more efficiently than other lengths.

iv_fixed_bits - number of bits of the original IV to preserve when generating an new IV. These bits are counted from the Most significant bits (to the right).

iv_generator - Function used to generate a new IV. Each IV must be unique for a given session.

tag - The buffer to store the tag. Either to be passed in or returned if generated by token.

Errors

This function returns an error if the length of iv does not fit into an Ulong.

pub fn iv(&mut self) -> &mut [u8]

The initialization vector.

pub fn iv_fixed_bits(&self) -> Ulong

The length, in bits, of fixed part of the IV.

pub fn iv_generator(&self) -> GeneratorFunction

The IV generator.

pub fn tag(&self) -> &'a [u8]

The authentication tag.

Trait Implementations

impl<'a> Clone for GcmMessageParams<'a>

fn clone(&self) -> GcmMessageParams<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for GcmMessageParams<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for GcmMessageParams<'a>