Advances in Multimedia Information Processing – PCM 2012(PCM 2012) Liang Tao& Horace H. S. Ip Part of the book series:Lecture Notes in Computer Science((LNISA,volume 7674)) Included in the following conference series: Pacific-Rim Conference on Multimedia ...
For example, it is not uncommon for users to write down passwords and store them in wallets, address books, cell phones, and even sticky notes posted on their monitors. Password Control Controlling passwords is a concern for management as well as the IT security professional. One problem is ...
(This article belongs to the Special Issue Big Data Analytics for Secure and Smart Environmental Services)Download keyboard_arrow_down Browse Figures Versions Notes Abstract The prerequisite for the use of remote sensing images is that their security must be guaranteed. As a special subset of ...
This scenario occurs when a pre-4.1 MySQL installation has been upgraded to 4.1 or later but mysql_upgrade has not been run to upgrade the system tables in the mysql database. (This is not a recommended configuration because it does not permit use of more secure 4.1 password hashing.) ...
Bertoni, G., Daemen, J., Peeters, M., Van Assche, G. (2014). Sakura: A Flexible Coding for Tree Hashing. In: Boureanu, I., Owesarski, P., Vaudenay, S. (eds) Applied Cryptography and Network Security. ACNS 2014. Lecture Notes in Computer Science, vol 8479. Springer, Cham. http...
Notes: The upgrade operation just described is safe to execute at any time because it makes themysql_native_passwordplugin explicit only for accounts that already use it implicitly. This operation requires no password changes, so it can be performed without affecting users or requiring their involve...
Fig. 1. 64 bytes from the file 007533.xls shows the “ramp” structure of the Microsoft Office Sector Allocation Table. The existence of such common blocks complicates hash-based carving in two ways. First, because these blocks match multiple files, they cannot be used for Candidate Selection...
The multi-pass versions are safe as all the blocks have to be kept in memory till the overwrite. 5.3 Attack on iterative compression function Let us consider the following structure of the compression function F (X, Y ), where X and Y are input blocks: • The input blocks of size t...
a common example (near-universal): #define hash(a,x) ((a)*(x) >> (WORDSIZE-HASHBITS)) "a" (secret salt) is an odd integer smaller than the largest element, the shift only reserves the first several bits that can be fit in the hash table.Methods for collision:-chaining (array of...
Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 12697)) Included in the following conference series: Annual International Conference on the Theory and Applications of Cryptographic Techniques 2339 Accesses Abstract We revisit the classical problem of designing optimally efficient...