INNER CODE UNIT · Rust

verify_truncated_mac

matrix-org/vodozemac · src/cipher/mod.rs:228

    pub fn verify_truncated_mac(&self, message: &[u8], tag: &[u8]) -> Result<(), MacError> {
        let mut hmac = self.get_hmac();

        hmac.update(message);
        hmac.verify_truncated_left(tag)
    }

    /// A [`Cipher::verify_mac()`] method that always succeeds.
    ///
    /// **Warning**: If you're seeing this comment and are not fuzzing the
    /// library, the library is operating with an insecure build-time
    /// configuration.
    ///
    /// This mode is intended only for fuzzing vodozemac, as MAC verification
    /// typically filters out many inputs early in the process.
    #[cfg(fuzzing)]
    pub fn verify_mac(&self, _: &[u8], _: &Mac) -> Result<(), MacError> {
        Ok(())

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