C839 - Pre-Assessment: Introduction To Cryptography Already Passed

Which encryption standard uses the same key to encrypt and decrypt messages? {Ans: } Symmetric Key EncryptionWhich algorithm is designated as a Type 2 product by the National Security Agency (NSA)? {Ans: } SKIPJACKWhat is the most commonly used format for certificates? {Ans: } X.509 v3 *Version 3*What is referenced to determine if a certificate has been revoked? {Ans: } Certificate Revocation List *(CRL)*What needs to be installed on *end users' computers* to allow them to *trust* applications that have been *digitally signed* by the developer? {Ans: } Sender's public key *(DEVELOPER's)*Which type of certificate *must be certified by an authority* to verify it with other participants? {Ans: } Public CertificateWhat is an attribute of the Rivest Cipher 4 (RC4) algorithm? {Ans: } It requires a unique nonce. *(# used ONCE)*Which mode generates the key stream with a nonce and incrementing value? {Ans: } Counter (CTR) *Generates the next keystream block* by encrypting successive *values* of a "counter"Which mode is a stream algorithm that concatenates an incrementing value with a nonce? {Ans: } Counter (CTR)Which key would an administrator use to encrypt data so *only the CEO can decrypt it?* {Ans: } CEO's public key Remember, when a specific person