Basic encoding Rules used with X509. A block cipher is an algorithm that operates on plaintext in groups of bits, called blocks. 64 bits is a typical block size. A symmetric encryption algorithm used to encrypt large quantities of data. The application entity that initiates a connection to a server.
Client write key.
The key used to encrypt data written by the client. Client write MAC secret. The secret data used to authenticate data written by the client. For SSL, such connections are peer to peer relationships. The connections are transient.