1. Let H be a cryptographic hash function, e.g., MD5, or SHA-1. And let M1 and M2 be any two given messages. If the hash values of these two messages are equal, is it then true that the messages are equal? Justify your answer. HTML Editor Keyboard Shortcuts 2. Is it possible for two different passwords to unlock the same account? Explain your answer in the basis of hash function properties we learned in class. 3.Your www browser contains a cache of self-signed root CA certificates. If a malefactor wants your browser to trust a "black market" WWW server (for example, they might want to perpetrate a phishing attack for the purpose of stealing the login/password for your bank account), what would they need to do to this cache to make that possible