Enum SignatureAlgorithm 

pub enum SignatureAlgorithm {
    HmacSha256,
    HmacSha1,
    HmacSha512,
    StandardWebhooks,
    StripeWebhooks,
    HmacSha256Base64,
    Ed25519,
}

Supported signature algorithms.

Variants

HmacSha256

HMAC-SHA256 (e.g., GitHub)

HmacSha1

HMAC-SHA1 (legacy, e.g., older GitHub)

HmacSha512

HMAC-SHA512

StandardWebhooks

Standard Webhooks (https://www.standardwebhooks.com) — used by Polar, Svix, Clerk, and others.

Signs {webhook-id}\n{webhook-timestamp}\n{body} with HMAC-SHA256. Signature header is always webhook-signature with format v1,<base64>. Secret prefixes whsec_ and polar_whs_ are stripped before base64 decoding.

StripeWebhooks

Stripe webhook format.

Signs {timestamp}.{body} with HMAC-SHA256. Timestamp and signatures are extracted from the Stripe-Signature header (t=...,v1=...). Requests older than 5 minutes are rejected to prevent replay attacks.

HmacSha256Base64

HMAC-SHA256 with base64-encoded output (e.g., Shopify).

Same algorithm as HmacSha256 but the signature is base64-encoded instead of hex.

Ed25519

Ed25519 asymmetric signature verification.

The secret_env holds a base64-encoded Ed25519 public key (32 bytes). Used by services that sign with a private key and distribute a public key for verification.

Implementations

impl SignatureAlgorithm

pub fn prefix(&self) -> &'static str

Get the algorithm prefix used in signatures (e.g., “sha256=”).

Returns an empty string for algorithms that don’t use a simple prefix.

Trait Implementations

impl Clone for SignatureAlgorithm

fn clone(&self) -> SignatureAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SignatureAlgorithm

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

Formats the value using the given formatter.

impl PartialEq for SignatureAlgorithm

fn eq(&self, other: &SignatureAlgorithm) -> 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 Copy for SignatureAlgorithm

impl Eq for SignatureAlgorithm

impl StructuralPartialEq for SignatureAlgorithm