![]() ![]() Security association lifetime kilobytes: N/A i tried to use `encrypt disable` but i didn`t know where to look on the running config :Ĭrypto Map "default-psk-redundant-master-ipsecmap" 9999 ipsec-isakmpĬrypto Map Template"default-psk-redundant-master-ipsecmap" 9999 the problem is that i don`t know the ipsec preshared key that is configured on the master controller. Part 2 (TLS 1.I`m new to aruba world ,we have a master controller ( 192.168.1.148)that`s running fine and i need to set up a local controller( 192.168.1.149) and configure redundancy. Part 1 (TLS 1.3 Performance – Resumption) The next blog will discuss use cases that result in the removal of a key generation from the list of expensive cryptographic operations in TLS 1.3. It is clear that using pre-shared keys in a secure way, with DH style key exchange, is faster with TLS 1.3 in wolfSSL. Using ECDH with P-256, TLS 1.3 is about 15% faster. The parallel secret generation resulted in, with client and server running on the same computer, TLS 1.3 being about 25% faster than TLS 1.2 when using DH. This means that the processing of the ServerHello and secret calculation on the client is happening at the same time relative to the server calculating the secret. ![]() So, the secret is calculated on the server after the ServerHello is sent. In TLS 1.3 using DH or ECDH with PSK results in the following handshake operations. On higher latency networks, the difference is trivial and the savings great. The amount of hashing and encryption/decryption has increased but losing a round-trip means that using PSK without a DH style key exchange is only slightly slower. This change in flow has a significant impact on the performance of TLS 1.3. Therefore there is one less round-trip required for TLS 1.3. ![]() ![]() In TLS 1.3, PSK handshakes are the same as resumption handshakes. In order to fit in with the existing flow, a full handshake is performed. This blog discusses how and why PSK handshakes are only similar in speed generally but faster when using DH style key exchange.įor TLS 1.2, handshakes using PSK are defined in a separate document ( RFC 4279). This is the third part of six blogs discussing the performance differences observed between TLS 1.2 and TLS 1.3 in wolfSSL and how to make the most of them in your applications. TLS 1.3 has a different handshake flow when using pre-shared keys and this impacts performance. ![]()
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