rsa/
errors.rs

1//! Error types.
2
3/// Alias for [`core::result::Result`] with the `rsa` crate's [`Error`] type.
4pub type Result<T> = core::result::Result<T, Error>;
5
6/// Error types
7#[derive(Debug, Eq, PartialEq)]
8#[non_exhaustive]
9pub enum Error {
10    /// Invalid padding scheme.
11    InvalidPaddingScheme,
12
13    /// Decryption error.
14    Decryption,
15
16    /// Verification error.
17    Verification,
18
19    /// Message too long.
20    MessageTooLong,
21
22    /// Input must be hashed.
23    InputNotHashed,
24
25    /// Number of primes must be 2 or greater.
26    NprimesTooSmall,
27
28    /// Too few primes of a given length to generate an RSA key.
29    TooFewPrimes,
30
31    /// Invalid prime value.
32    InvalidPrime,
33
34    /// Invalid modulus.
35    InvalidModulus,
36
37    /// Invalid exponent.
38    InvalidExponent,
39
40    /// Invalid coefficient.
41    InvalidCoefficient,
42
43    /// Modulus too large.
44    ModulusTooLarge,
45
46    /// Public exponent too small.
47    PublicExponentTooSmall,
48
49    /// Public exponent too large.
50    PublicExponentTooLarge,
51
52    /// PKCS#1 error.
53    Pkcs1(pkcs1::Error),
54
55    /// PKCS#8 error.
56    Pkcs8(pkcs8::Error),
57
58    /// Internal error.
59    Internal,
60
61    /// Label too long.
62    LabelTooLong,
63
64    /// Invalid padding length.
65    InvalidPadLen,
66
67    /// Invalid arguments.
68    InvalidArguments,
69}
70
71#[cfg(feature = "std")]
72impl std::error::Error for Error {}
73impl core::fmt::Display for Error {
74    fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
75        match self {
76            Error::InvalidPaddingScheme => write!(f, "invalid padding scheme"),
77            Error::Decryption => write!(f, "decryption error"),
78            Error::Verification => write!(f, "verification error"),
79            Error::MessageTooLong => write!(f, "message too long"),
80            Error::InputNotHashed => write!(f, "input must be hashed"),
81            Error::NprimesTooSmall => write!(f, "nprimes must be >= 2"),
82            Error::TooFewPrimes => {
83                write!(f, "too few primes of given length to generate an RSA key")
84            }
85            Error::InvalidPrime => write!(f, "invalid prime value"),
86            Error::InvalidModulus => write!(f, "invalid modulus"),
87            Error::InvalidExponent => write!(f, "invalid exponent"),
88            Error::InvalidCoefficient => write!(f, "invalid coefficient"),
89            Error::ModulusTooLarge => write!(f, "modulus too large"),
90            Error::PublicExponentTooSmall => write!(f, "public exponent too small"),
91            Error::PublicExponentTooLarge => write!(f, "public exponent too large"),
92            Error::Pkcs1(err) => write!(f, "{}", err),
93            Error::Pkcs8(err) => write!(f, "{}", err),
94            Error::Internal => write!(f, "internal error"),
95            Error::LabelTooLong => write!(f, "label too long"),
96            Error::InvalidPadLen => write!(f, "invalid padding length"),
97            Error::InvalidArguments => write!(f, "invalid arguments"),
98        }
99    }
100}
101
102impl From<pkcs1::Error> for Error {
103    fn from(err: pkcs1::Error) -> Error {
104        Error::Pkcs1(err)
105    }
106}
107
108impl From<pkcs8::Error> for Error {
109    fn from(err: pkcs8::Error) -> Error {
110        Error::Pkcs8(err)
111    }
112}
113
114#[cfg(feature = "std")]
115impl From<Error> for signature::Error {
116    fn from(err: Error) -> Self {
117        Self::from_source(err)
118    }
119}
120
121#[cfg(not(feature = "std"))]
122impl From<Error> for signature::Error {
123    fn from(_err: Error) -> Self {
124        Self::new()
125    }
126}
rsa/errors.rs

rsa/
errors.rs
