Struct MessageVerifier 

pub struct MessageVerifier { /* private fields */ }

Signs messages using HMAC-SHA256.

Implementations

impl MessageVerifier

pub fn new(secret: &[u8]) -> Self

Creates a new verifier from a secret.

pub fn generate(&self, data: &[u8]) -> String

Generates a signed message in the form base64(payload)--base64(hmac).

pub fn generate_with_purpose( &self, data: &[u8], purpose: &str, expires_at: Option<DateTime<Utc>>, ) -> String

Generates a signed message with purpose confinement and optional expiration.

pub fn verify(&self, signed_message: &str) -> Result<Vec<u8>, VerifierError>

Verifies a signed message and returns the original bytes.

pub fn verify_with_purpose( &self, signed_message: &str, purpose: &str, ) -> Result<Vec<u8>, VerifierError>

Verifies a signed message and enforces its purpose.

pub fn valid_message(&self, signed_message: &str) -> bool

Returns true when the message has a valid signature.