byte_array_ops/byte_array/
errors.rs

1//! This module encapsulates all errors that byte_array can throw
2
3use core::error::Error;
4use core::fmt::{Display, Formatter};
5
6#[derive(Debug)]
7#[cfg(feature = "sec_basic_hardening")]
8pub enum ByteArraySecurityError {
9    DataRemnanceRisk,
10}
11#[derive(Debug)]
12pub enum ByteArrayError {
13    InvalidHexChar(char),
14    InvalidBinaryChar(char),
15    EmptyInput,
16    #[cfg(feature = "sec_basic_hardening")]
17    SecurityError(ByteArraySecurityError),
18}
19
20impl Display for ByteArrayError {
21    fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
22        match self {
23            ByteArrayError::InvalidHexChar(c) => write!(f, "Invalid hex character: '{}'", c),
24            ByteArrayError::InvalidBinaryChar(c) => write!(f, "Invalid binary character: '{}'", c),
25            ByteArrayError::EmptyInput => write!(f, "Invalid empty input string"),
26            #[cfg(feature = "sec_basic_hardening")]
27            ByteArrayError::SecurityError(sec_error) => {
28                let base_msg = "Operational error due to security risk";
29                match sec_error {
30                    ByteArraySecurityError::DataRemnanceRisk => {
31                        write!(f, "{base_msg}: Data Remnance Risk subverting secure wiping")
32                    }
33                }
34            }
35        }
36    }
37}
38
39impl Error for ByteArrayError {}
byte_array_ops/byte_array/errors.rs

byte_array_ops/byte_array/
errors.rs
