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This is unreleased documentation for the main (development) branch of crypto-glue.

EncryptionScheme

Enum EncryptionScheme 

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#[non_exhaustive]
pub enum EncryptionScheme { Pbes1(Algorithm), Pbes2(Parameters), }
Expand description

Configuration for supported PKCS#5 password-based encryption schemes.

Security Warning

This type should not be used to encrypt multiple plaintexts under the same IV/salt values.

Instead, new values should be randomly generated for every usage.

Variants (Non-exhaustive)§

This enum is marked as 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.
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Pbes1(Algorithm)

Password-Based Encryption Scheme 1 as defined in RFC 8018 Section 6.1.

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Pbes2(Parameters)

Password-Based Encryption Scheme 2 as defined in RFC 8018 Section 6.2.

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impl EncryptionScheme

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pub fn decrypt( &self, password: impl AsRef<[u8]>, ciphertext: &[u8], ) -> Result<Vec<u8>>

Attempt to decrypt the given ciphertext, allocating and returning a byte vector containing the plaintext.

§Errors

Returns an error if the algorithm specified in this scheme’s parameters is unsupported (e.g. PBES1 is completely unsupported), or if the ciphertext is malformed (e.g. ciphertext length is not a multiple of a block mode’s padding).

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pub fn decrypt_in_place<'a>( &self, password: impl AsRef<[u8]>, buffer: &'a mut [u8], ) -> Result<&'a [u8]>

Attempt to decrypt the given ciphertext in-place using a key derived from the provided password and this scheme’s parameters.

§Errors

Returns an error if the algorithm specified in this scheme’s parameters is unsupported (e.g. PBES1 is completely unsupported), or if the ciphertext is malformed (e.g. not a multiple of a block mode’s padding).

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pub fn encrypt( &self, password: impl AsRef<[u8]>, plaintext: &[u8], ) -> Result<Vec<u8>>

Encrypt the given plaintext, allocating and returning a vector containing the ciphertext.

§Errors
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pub fn encrypt_in_place<'a>( &self, password: impl AsRef<[u8]>, buffer: &'a mut [u8], pos: usize, ) -> Result<&'a [u8]>

Encrypt the given ciphertext in-place using a key derived from the provided password and this scheme’s parameters.

§Errors
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pub fn oid(&self) -> ObjectIdentifier

Get the ObjectIdentifier (a.k.a OID) for this algorithm.

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pub fn pbes1(&self) -> Option<&Algorithm>

Get pbes1::Parameters if it is the selected algorithm.

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pub fn pbes2(&self) -> Option<&Parameters>

Get pbes2::Parameters if it is the selected algorithm.

Trait Implementations§

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impl Clone for EncryptionScheme

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for EncryptionScheme

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

Formats the value using the given formatter. Read more
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impl<'a> DecodeValue<'a> for EncryptionScheme

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type Error = Error

Type returned in the event of a decoding error.
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fn decode_value<R: Reader<'a>>(decoder: &mut R, header: Header) -> Result<Self>

Attempt to decode this value using the provided Reader. Read more
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impl EncodeValue for EncryptionScheme

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fn value_len(&self) -> Result<Length>

Compute the length of this value (sans [Tag]+Length header) when encoded as ASN.1 DER. Read more
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fn encode_value(&self, writer: &mut impl Writer) -> Result<()>

Encode value (sans [Tag]+Length header) as ASN.1 DER using the provided Writer. Read more
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fn header(&self) -> Result<Header, Error>
where Self: Tagged,

Get the Header used to encode this value. Read more
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impl Eq for EncryptionScheme

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impl From<Algorithm> for EncryptionScheme

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fn from(alg: Algorithm) -> EncryptionScheme

Converts to this type from the input type.
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impl From<Parameters> for EncryptionScheme

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fn from(params: Parameters) -> EncryptionScheme

Converts to this type from the input type.
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impl PartialEq for EncryptionScheme

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Sequence<'_> for EncryptionScheme

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impl StructuralPartialEq for EncryptionScheme

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impl TryFrom<&[u8]> for EncryptionScheme

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(bytes: &[u8]) -> Result<EncryptionScheme>

Performs the conversion.
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impl TryFrom<AlgorithmIdentifier<AnyRef<'_>>> for EncryptionScheme

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(alg: AlgorithmIdentifierRef<'_>) -> Result<EncryptionScheme>

Performs the conversion.

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<'a, T> Choice<'a> for T
where T: Decode<'a> + FixedTag,

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fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<'a, T> Decode<'a> for T
where T: DecodeValue<'a> + FixedTag + 'a,

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type Error = <T as DecodeValue<'a>>::Error

Type returned in the event of a decoding error.
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fn decode<R>(reader: &mut R) -> Result<T, <T as DecodeValue<'a>>::Error>
where R: Reader<'a>,

Attempt to decode this TLV message using the provided decoder. Read more
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fn from_der(bytes: &'a [u8]) -> Result<Self, Self::Error>

Parse Self from the provided DER-encoded byte slice. Read more
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fn from_der_partial(bytes: &'a [u8]) -> Result<(Self, &'a [u8]), Self::Error>

Parse Self from the provided DER-encoded byte slice. Read more
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impl<T> DecodeOwned for T
where T: for<'a> Decode<'a>,

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impl<T> Encode for T
where T: EncodeValue + Tagged + ?Sized,

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fn encoded_len(&self) -> Result<Length, Error>

Compute the length of this TLV object in bytes when encoded as ASN.1 DER. Read more
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fn encode(&self, writer: &mut impl Writer) -> Result<(), Error>

Encode this TLV object as ASN.1 DER using the provided Writer. Read more
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fn encode_to_slice<'a>(&self, buf: &'a mut [u8]) -> Result<&'a [u8], Error>

Encode this TLV object to the provided byte slice, returning a sub-slice containing the encoded message. Read more
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fn encode_to_vec(&self, buf: &mut Vec<u8>) -> Result<Length, Error>

Encode this TLV object as ASN.1 DER, appending it to the provided byte vector. Read more
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fn to_der(&self) -> Result<Vec<u8>, Error>

Encode this TLV object as ASN.1 DER, returning a byte vector. Read more
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impl<'a, S> FixedTag for S
where S: Sequence<'a>,

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const TAG: Tag = Tag::Sequence

ASN.1 tag
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IsConstructed for T
where T: FixedTag + ?Sized,

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const CONSTRUCTED: bool

ASN.1 constructed bit
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Tagged for T
where T: FixedTag + ?Sized,

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fn tag(&self) -> Tag

Get the ASN.1 tag that this type is encoded with.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.