javalin-security-jwt/io.github.mzlnk.javalin.security.jwt/JwtKeySource/Companion/secretBytes

secretBytes

@JvmStatic
@JvmOverloads
fun secretBytes(bytes: ByteArray, algorithm: String = "HS256"): JwtKeySource

Verifies tokens using raw HMAC secret bytes.

Use when the secret is already available as bytes (for example Base64-decoded). algorithm defaults to "HS256".