Enum PaddingError 

#[non_exhaustive]
pub enum PaddingError {
    PositionOutOfRange,
    UnsupportedBlockSize,
    BlockFull,
    CorruptPadding,
}

A failure while adding or removing block padding.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

PositionOutOfRange

The requested padding position lies past the end of the block.

UnsupportedBlockSize

The block is longer than the scheme’s length encoding can describe.

PKCS#7, ANSI X9.23, and ISO 10126-2 record the padding count in a single byte and therefore cannot serve blocks of 256 bytes or more.

BlockFull

The block is already full, leaving no room for padding.

Schemes that must write at least one byte, such as PKCS#7 and ISO 7816-4, report this when the padding position equals the block length. Schemes that can add nothing at all, such as zero-byte padding, return a count of zero instead.

CorruptPadding

The trailing bytes of the block are not a valid encoding for the scheme.

Self-describing schemes such as PKCS#7 report this; schemes that encode no length, such as zero-byte padding, cannot detect corruption at all.

Trait Implementations

impl Clone for PaddingError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PaddingError

impl Debug for PaddingError

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

Formats the value using the given formatter.

impl Display for PaddingError

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

Writes a fixed description of the error. Constant time: errors carry no secret data.

impl Eq for PaddingError

impl Error for PaddingError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for PaddingError

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PaddingError