ECB or Electronic Codebook mode is supported by many encryption clients like FiSH and Mircryption however it is generally considered to be insecure. CBC or Cipher Block Chaining mode is not supported by FiSH but is supported by Mircryption. If you are going to use key exchange it is best to first find out if your peer has a client that can use CBC otherwise you will be able to see what they are saying, but they will not be able to read what you are saying.
El mode Electronic Codebook està acceptat per molts clients d' encriptatge com ara FiSH i Mircryption encare que està generalment considerat com insegur. CBC o mode Cipher- Block Chaining no està implementat per FiSH però està implementat per Mircryption. Si voleu usar un intercanvi de claus és millor comprovar primer si el vostre company té un client que pot usar CBC, del contrari sereu capaç de veure el que està escrivint. però ell no serà capaç de llegir el que esteu escrivint vos.