io.ktor.util / StatelessHmacNonceManager

StatelessHmacNonceManager

class StatelessHmacNonceManager : NonceManager

Stateless nonce manager implementation with HMAC verification and timeout. Every nonce provided by this manager consist of a random part, timestamp and HMAC.

Constructors

<init>

StatelessHmacNonceManager(
    key: ByteArray, 
    algorithm: String = "HmacSHA256", 
    timeoutMillis: Long = 60000, 
    nonceGenerator: () -> String = { generateNonce() })

Helper constructor that makes a secret key from key ByteArray

StatelessHmacNonceManager(
    keySpec: SecretKeySpec, 
    algorithm: String = "HmacSHA256", 
    timeoutMillis: Long = 60000, 
    nonceGenerator: () -> String = { generateNonce() })

Stateless nonce manager implementation with HMAC verification and timeout. Every nonce provided by this manager consist of a random part, timestamp and HMAC.

Properties

algorithm	`val algorithm: String` HMAC algorithm name, `HmacSHA256` by default
keySpec	`val keySpec: SecretKeySpec` secret key spec for HMAC
nonceGenerator	`val nonceGenerator: () -> String` function that produces random values
timeoutMillis	`val timeoutMillis: Long` specifies the amount of time for a nonce to be considered valid

Functions

newNonce	`suspend fun newNonce(): String` Generate new nonce instance
verifyNonce	`suspend fun verifyNonce(nonce: String): Boolean` Verify nonce value