Need for secure encryption algorithms
Good cryptographic systems should always be designed so that they are as difficult to break as possible. Governments have always had concerns with strong encryption fearing that it could be used against their countries by criminals. Sophisticated technology is used by law enforcement agencies to decipher encrypted information that might contain incriminating evidence. In theory one can break any encryption algorithm by exhausting every key in a sequence. This brute force method requires vast amounts of computing power as length of the key increase. For example a 32-bit key takes 2^32 (4294967296) steps. A system with 40 bit keys (e.g. US-exportable version of RC4) takes 2^40 steps - this kind of computing power is available in most universities and even small companies.
Encryption key lengths & hacking feasibility
Type of Attacker Budget Tool Time & Cost/Key
40 bit Time & Cost/Key
56 bit
Regular User Minimal
Fri Mar 20, 2015 10:17 am
emma
Joined: 12 Dec 2013 Posts: 78
Its well written article. All the points are well explained in your article. All the necessary briefing is mentioned in your post. You did a good job.Please share some more blogs also.Thanks!
digital signature algorithm
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