[][src]Enum sequoia_openpgp::types::SymmetricAlgorithm

pub enum SymmetricAlgorithm {
    Unencrypted,
    IDEA,
    TripleDES,
    CAST5,
    Blowfish,
    AES128,
    AES192,
    AES256,
    Twofish,
    Camellia128,
    Camellia192,
    Camellia256,
    Private(u8),
    Unknown(u8),
    // some variants omitted
}

The symmetric-key algorithms as defined in Section 9.2 of RFC 4880.

The values can be converted into and from their corresponding values of the serialized format.

Use SymmetricAlgorithm::from to translate a numeric value to a symbolic one.

Note: This enum cannot be exhaustively matched to allow future extensions.

Examples

Use SymmetricAlgorithm to set the preferred symmetric algorithms on a signature:

use sequoia_openpgp as openpgp;
use openpgp::packet::signature::SignatureBuilder;
use openpgp::types::{HashAlgorithm, SymmetricAlgorithm, SignatureType};

let mut builder = SignatureBuilder::new(SignatureType::DirectKey)
    .set_hash_algo(HashAlgorithm::SHA512)
    .set_preferred_symmetric_algorithms(vec![
        SymmetricAlgorithm::AES256,
    ])?;

Variants

Unencrypted

Null encryption.

IDEA

IDEA block cipher.

TripleDES

3-DES in EDE configuration.

CAST5

CAST5/CAST128 block cipher.

Blowfish

Schneier et.al. Blowfish block cipher.

AES128

10-round AES.

AES192

12-round AES.

AES256

14-round AES.

Twofish

Twofish block cipher.

Camellia128

18 rounds of NESSIEs Camellia.

Camellia192

24 rounds of NESSIEs Camellia w/192 bit keys.

Camellia256

24 rounds of NESSIEs Camellia w/256 bit keys.

Private(u8)

Private algorithm identifier.

Unknown(u8)

Unknown algorithm identifier.

Methods

impl SymmetricAlgorithm[src]

pub fn is_supported(&self) -> bool[src]

Returns whether this algorithm is supported by the crypto backend.

All backends support all the AES variants.

Examples

use sequoia_openpgp as openpgp;
use openpgp::types::SymmetricAlgorithm;

assert!(SymmetricAlgorithm::AES256.is_supported());
assert!(SymmetricAlgorithm::TripleDES.is_supported());

assert!(!SymmetricAlgorithm::IDEA.is_supported());
assert!(!SymmetricAlgorithm::Unencrypted.is_supported());
assert!(!SymmetricAlgorithm::Private(101).is_supported());

pub fn key_size(self) -> Result<usize>[src]

Length of a key for this algorithm in bytes. Fails if Sequoia does not support this algorithm.

pub fn block_size(self) -> Result<usize>[src]

Length of a block for this algorithm in bytes. Fails if Sequoia does not support this algorithm.

Trait Implementations

impl Clone for SymmetricAlgorithm[src]

impl Copy for SymmetricAlgorithm[src]

impl Debug for SymmetricAlgorithm[src]

impl Default for SymmetricAlgorithm[src]

impl Display for SymmetricAlgorithm[src]

impl Eq for SymmetricAlgorithm[src]

impl From<SymmetricAlgorithm> for u8[src]

impl From<u8> for SymmetricAlgorithm[src]

impl Hash for SymmetricAlgorithm[src]

impl Ord for SymmetricAlgorithm[src]

impl PartialEq<SymmetricAlgorithm> for SymmetricAlgorithm[src]

impl PartialOrd<SymmetricAlgorithm> for SymmetricAlgorithm[src]

impl StructuralEq for SymmetricAlgorithm[src]

impl StructuralPartialEq for SymmetricAlgorithm[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> DynClone for T where
    T: Clone
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.