Ceh exam a2 qa - Study guides, Class notes & Summaries

What is the block and output size of SHA1? 1 512-bit blocks with an output of 128 bits 2 512-bit blocks with an output of 160 bits 3 1024-bit blocks with an output of 256 bits 4 1088-bit blocks with an output of 256 bits - Answer- 2 The SHA1 (Secure Hash Algorithm) 1 hashing algorithm operates on one 512-bit block at a time and outputs a 160-bit hash function, usually represented as a 40 hexadecimal digits. This value can be used to validate the integrity of the data. It crea...

1. C. Replay attacks involve capturing passwords, most likely encrypted, and playing them back to fake authentication. For more information, see Chapter 4. - Answer- 1. In which type of attack are passwords never cracked? A. Cryptography attacks B. Brute-force attacks C. Replay attacks D. John the Ripper attacks 2. A. An LM hash splits a password into two sections. If the password is 7 characters or less, then the blank portion of the password will always be a hex value of AAD3B435B514...