stream-cipher 0.3.0

Stream cipher traits
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

use core::fmt;
#[cfg(feature = "std")]
use std::error;

/// Error which notifies that stream cipher has reached the end of a keystream.
#[derive(Copy, Clone, Debug)]
pub struct LoopError;

impl fmt::Display for LoopError {
    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
        f.write_str("Loop Error")
    }
}

#[cfg(feature = "std")]
impl error::Error for LoopError {
    fn description(&self) -> &str {
        "stream cipher loop detected"
    }
}

/// Error which notifies that key or/and nonce used in stream cipher
/// initialization had an invalid length.
#[derive(Copy, Clone, Debug)]
pub struct InvalidKeyNonceLength;

impl fmt::Display for InvalidKeyNonceLength {
    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
        f.write_str("Loop Error")
    }
}

#[cfg(feature = "std")]
impl error::Error for InvalidKeyNonceLength {
    fn description(&self) -> &str {
        "stream cipher loop detected"
    }
}