Enum solana_libra_crypto::hkdf::HkdfError

pub enum HkdfError {
    InvalidOutputLengthError,
    NotSupportedHashFunctionError,
    WrongPseudorandomKeyError,
    MACKeyError,
}

An error type for HKDF key derivation issues.

This enum reflects there are various causes of HKDF failures, including: a) requested HKDF output size exceeds the maximum allowed or is zero. b) hash functions outputting less than 32 bits are not supported (i.e., SHA1 is not supported). c) small PRK value in HKDF-Expand according to RFC 5869. d) any other underlying HMAC error.

Variants

InvalidOutputLengthError

HKDF expand output exceeds the maximum allowed or is zero.

NotSupportedHashFunctionError

Hash function is not supported because its output is less than 32 bits.

WrongPseudorandomKeyError

PRK on HKDF-Expand should not be less than the underlying hash output bits.

MACKeyError

HMAC key related error; unlikely to happen because every key size is accepted in HMAC.

Trait Implementations

impl Clone for HkdfError

fn clone(&self) -> HkdfError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq<HkdfError> for HkdfError

fn eq(&self, other: &HkdfError) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Eq for HkdfError

impl Display for HkdfError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for HkdfError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Fail for HkdfError

fn name(&self) -> Option<&str>

Returns the "name" of the error.

fn cause(&self) -> Option<&dyn Fail>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D> where
    D: Display + Send + Sync + 'static, 

Provides context for this failure.

fn compat(self) -> Compat<Self>

Wraps this failure in a compatibility wrapper that implements std::error::Error.