Struct diem_crypto::x25519::PrivateKey

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pub struct PrivateKey(/* private fields */);
Expand description

This type should be used to deserialize a received private key

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impl PrivateKey

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pub fn public_key(&self) -> PublicKey

Obtain the public key part of a private key

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pub fn diffie_hellman(&self, remote_public_key: &PublicKey) -> [u8; 32]

To perform a key exchange with another public key

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pub fn from_ed25519_private_bytes( private_slice: &[u8] ) -> Result<Self, CryptoMaterialError>

Deserialize an X25119 PrivateKey given the sha512 pre-image of a hash whose least significant half is a canonical X25519 scalar, following the XEdDSA approach.

This will FAIL if the passed-in byte representation converts to a non-canonical scalar in the X25519 sense (and thus cannot correspond to a X25519 valid key without bit-mangling).

This is meant to compensate for the poor key storage capabilities of some key management solutions, and NOT to promote double usage of keys under several schemes, which would lead to BAD vulnerabilities.

Trait Implementations§

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impl Debug for PrivateKey

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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<'de> Deserialize<'de> for PrivateKey

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for PrivateKey

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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 From<&PrivateKey> for PublicKey

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fn from(private_key: &PrivateKey) -> Self

Converts to this type from the input type.
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impl From<[u8; 32]> for PrivateKey

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fn from(private_key_bytes: [u8; 32]) -> Self

Converts to this type from the input type.
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impl PrivateKey for PrivateKey

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type PublicKeyMaterial = PublicKey

We require public / private types to be coupled, i.e. their associated type is each other.
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fn public_key(&self) -> Self::PublicKeyMaterial

Returns the associated public key
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impl Serialize for PrivateKey

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl TryFrom<&[u8]> for PrivateKey

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type Error = CryptoMaterialError

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

Performs the conversion.
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impl Uniform for PrivateKey

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fn generate<R>(rng: &mut R) -> Self
where R: RngCore + CryptoRng,

Generate key material from an RNG. This should generally not be used for production purposes even with a good source of randomness. When possible use hardware crypto to generate and store private keys.
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fn generate_for_testing() -> Self
where Self: Sized,

Generate a random key using the shared TEST_SEED
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impl ValidCryptoMaterial for PrivateKey

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fn to_bytes(&self) -> Vec<u8> ⓘ

Convert the valid crypto material to bytes.

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fn test_only_hash(&self) -> HashValue

Generates a hash used only for tests.
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default fn to_string(&self) -> String

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fn from_encoded_string(encoded_str: &str) -> Result<Self, CryptoMaterialError>

When trying to convert from bytes, we simply decode the string into bytes before checking if we can convert.
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fn to_encoded_string(&self) -> Result<String>

A function to encode into hex-string after serializing.
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