README
¶
OTP primitives
Generate() returns a cryptographically random six-digit decimal code.
NewDigester(key) copies a secret of at least 32 bytes. Digest(fields...) binds
ordered proof fields with HMAC-SHA256; Key(scope, value) provides separate keyed
fingerprints for private rate-limit identities. Compare digests with hmac.Equal.
Keep the key stable across replicas and restarts. Use the same proof field order when issuing and verifying; changing the key or field order invalidates proofs. This package provides no delivery, storage, eligibility, expiry, one-time consumption, rate limiting or recovery policy. The application must supply those protections.
Documentation
¶
Overview ¶
Package otp generates decimal codes and keyed proof digests. It does not own storage, expiration, retries, rate limits, or account eligibility.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
Types ¶
type Digester ¶
type Digester struct {
// contains filtered or unexported fields
}
Digester copies its key and supports concurrent use.
Source Files