ECES|EC Council - Certified Encryption Specialist | bundle

.cer/.crt/.der - correct answer x.509 Digital Certificates extensions - Typically binary encoded. (.cer is Microsoft convention) AES Phases - correct answer 1. SubBytes - non-linear substitution - uses Rijndael S-box 2. Shiftrows - transposition 3. MixColumns - mixing 4. AddRoundKey IKE - ...

What type of encryption uses different keys to encrypt and decrypt the message? +Secure +Asymmetric +Private key +Symmetric - correct answer Asymmetric Asymmetric cryptography, also known as public key cryptography, uses public and private keys to encrypt and decrypt data. The most widel...

What is cryptography? - correct answer Noun - A) The process or skill of communicating in or deciphering secret writings or ciphers B) Secret writing Origin - Cryptography (or cryptology); derived from word kryptos which means "hidden", and grafo, which means "write", is the study of messa...

How did the ATBASH cipher work? a. By shifting each letter a certain number of spaces b. By Multi alphabet substitution c. By rotating text a given number of spaces d. By substituting each letter for the letter from the opposite end of the alphabet (i.e. A becomes Z, B becomes Y, etc.) - corre...

Mono-Alphabet Cipher - correct answer -this type of cipher substitutes one character of ciphertext for one character of plaintext Ceasar Cipher - correct answer -each letter is shifted a fixed number of spaces to the left or right in the alphabet -the shifting is the "key" -the shift is o...

. How did the ATBASH cipher work? - correct answer By substituting each letter for the letter from the opposite end of the alphabet (i.e. Abecomes Z, B becomes Y, etc.) 2. DES has a key space of what? - correct answer 2^56 3. Which of the following are valid key sizes for AES (choose three)? -...

PKCS #1 - correct answer RSA Cryptography Standard PKCS #3 - correct answer Diffie-Hellman Key Agreement Standard PKCS #5/RFC 2898 - correct answer Password-based Encryption Standard PKCS #8 - correct answer Private-Key Information Syntax Standard PKCS #13 - correct answer Elliptic Curve...

Asymmetric - correct answer What type of encryption uses different keys to encrypt and decrypt the message? RSA - correct answer The most widely used asymmetric encryption algorithim is what? Plaintext - correct answer Original, unencrypted information is referred to as ____. DES - correct ...

What type of encryption uses different keys to encrypt and decrypt the message? +Secure +Asymmetric +Private key +Symmetric - correct answer Asymmetric Asymmetric cryptography, also known as public key cryptography, uses public and private keys to encrypt and decrypt data. The most widel...

DES - correct answer Symmetric Block Key size: 56 Block size: 64 Feistel Cipher w/ 16 rounds, 48 bit key for each round. Use of 8 S-boxes 3DES (Triple DES) - correct answer Symmetric Block Key size: 56 Block size: 64 Performs DES function 3 times w/ 3 different keys. DESx - correct answ...

Which of the following is generally true about key sizes? a. Larger key sizes increase security b. Smaller key sizes increase security c. Key size is irrelevant to security d. Key sizes must be more than 256 bits to be secure - correct answer a. Larger key sizes increase security How di...