Enum FieldProtection 

pub enum FieldProtection {
    None,
    Sha256,
    Hmac,
    Rsa,
}

How a registry field is transformed before hitting disk.

Variants

None

Sha256

One-way SHA-256. Equality search keeps working (probe is hashed too); the plaintext is never stored. No key to manage — but the digest is deterministic and unsalted, so low-entropy values (SSNs, phone numbers, …) can be brute-forced by anyone with disk access; prefer FieldProtection::Hmac for those.

Hmac

One-way HMAC-SHA-256 keyed with crate::KeyRing::with_hmac_key. Equality search keeps working (probes are MACed with the same key); without the key the stored digests cannot be brute-forced.

Rsa

Hybrid AES-256-GCM + RSA-OAEP(SHA-256) with the store’s public key. Decryptable with the private key, but not searchable.

Trait Implementations

impl Clone for FieldProtection

fn clone(&self) -> FieldProtection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FieldProtection

impl Debug for FieldProtection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FieldProtection

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FieldProtection

impl PartialEq for FieldProtection

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FieldProtection

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FieldProtection