sp1_lib::ecdsa::ecdh

Struct EphemeralSecret

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pub struct EphemeralSecret<C>
where
    C: CurveArithmetic,
{ /* private fields */ }
Expand description

Ephemeral Diffie-Hellman Secret.

These are ephemeral “secret key” values which are deliberately designed to avoid being persisted.

To perform an ephemeral Diffie-Hellman exchange, do the following:

§⚠️ SECURITY WARNING ⚠️

Ephemeral Diffie-Hellman exchanges are unauthenticated and without a further authentication step are trivially vulnerable to man-in-the-middle attacks!

These exchanges should be performed in the context of a protocol which takes further steps to authenticate the peers in a key exchange.

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impl<C> EphemeralSecret<C>
where C: CurveArithmetic,

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pub fn random(rng: &mut impl CryptoRngCore) -> EphemeralSecret<C>

Generate a cryptographically random EphemeralSecret.

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pub fn public_key(&self) -> PublicKey<C>

Get the public key associated with this ephemeral secret.

The compress flag enables point compression.

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pub fn diffie_hellman(&self, public_key: &PublicKey<C>) -> SharedSecret<C>

Compute a Diffie-Hellman shared secret from an ephemeral secret and the public key of the other participant in the exchange.

Trait Implementations§

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impl<C> Drop for EphemeralSecret<C>
where C: CurveArithmetic,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<C> Zeroize for EphemeralSecret<C>
where C: CurveArithmetic,

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fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.
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impl<C> ZeroizeOnDrop for EphemeralSecret<C>
where C: CurveArithmetic,

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where T: 'static + ?Sized,

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