Struct CryptoBackend 

pub struct CryptoBackend {
    pub sig_algo: &'static dyn SignatureVerificationAlgorithm,
    pub sha256: fn(&[u8]) -> [u8; 32],
    pub sha384: fn(&[u8]) -> [u8; 48],
    pub encode_ecdsa: fn(&[u8]) -> Result<Vec<u8>>,
    pub parse_pck_extension: fn(&[u8]) -> Result<PckExtension>,
}

Crypto backend configuration for quote verification.

Holds the signature verification algorithm and SHA-256 implementation needed by the verification logic. Use ring::backend() or rustcrypto::backend() to obtain a pre-configured instance.

Fields

sig_algo: &'static dyn SignatureVerificationAlgorithm

ECDSA P-256 SHA-256 algorithm for certificate and raw signature verification

sha256: fn(&[u8]) -> [u8; 32]

SHA-256 hash function

sha384: fn(&[u8]) -> [u8; 48]

SHA-384 hash function (used for root_key_id computation)

encode_ecdsa: fn(&[u8]) -> Result<Vec<u8>>

Raw ECDSA r || s to DER encoder.

parse_pck_extension: fn(&[u8]) -> Result<PckExtension>

Parse Intel PCK extensions with the configured X.509 backend.