Struct CoseAgent

pub struct CoseAgent {
    pub header: CoseHeader,
    pub payload: Vec<u8>,
    pub pub_key: Vec<u8>,
    pub s_key: Vec<u8>,
    /* private fields */
}

COSE recipient, signer or counter-signature structure.

Fields

header: CoseHeader

Header of the CoseAgent (recipient, signer or counter-signature).

payload: Vec<u8>

Payload (signature, ciphertext or MAC).

pub_key: Vec<u8>

Public key.

s_key: Vec<u8>

Private/Symmetric key.

Implementations

impl CoseAgent

pub fn new() -> CoseAgent

Creates an empty CoseAgent structure.

pub fn new_counter_sig() -> CoseAgent

Creates an empty CoseAgent structure for counter signatures.

pub fn add_header(&mut self, header: CoseHeader)

Adds an header.

pub fn key(&mut self, key: &CoseKey) -> CoseResult

Adds a cose-key.

pub fn add_signature(&mut self, signature: Vec<u8>) -> CoseResult

Adds the counter signature to the CoseAgent.

Function to use when signature was produce externally to the module. This function is to use only in the context of counter signatures, not message recipients/signers.

pub fn counter_sig( &self, external_aad: Option<Vec<u8>>, counter: &mut CoseAgent, ) -> CoseResult

Adds a counter signature to the signer/recipient.

pub fn get_to_sign( &self, external_aad: Option<Vec<u8>>, counter: &mut CoseAgent, ) -> CoseResultWithRet<Vec<u8>>

Function to get the content to sign by the counter signature.

This function is meant to be called if the counter signature process needs to be external to this crate, like a timestamp authority.

pub fn get_to_verify( &mut self, external_aad: Option<Vec<u8>>, counter: &usize, ) -> CoseResultWithRet<Vec<u8>>

Function to get the content to verify with the counter signature.

This function is meant to be called if the counter signature process needs to be external to this crate, like a timestamp authority.

pub fn counters_verify( &mut self, external_aad: Option<Vec<u8>>, counter: usize, ) -> CoseResult

Function that verifies a given counter signature on the respective signer/recipient.

pub fn add_counter_sig(&mut self, counter: CoseAgent) -> CoseResult

Function that adds a counter signature which was signed externally with the use of get_to_sign

Trait Implementations

impl Clone for CoseAgent

fn clone(&self) -> CoseAgent

Returns a duplicate of the value.

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

Performs copy-assignment from source.