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Frequently Asked Questions

Are there differences in how AES encryption is implemented?

Powertech - Products - Encryption
Yes, AES supports two different modes of operation known as Stream mode and CTR, or counter, mode. Most AES encryption applications work in stream mode. That is, they accept one chunk of data and the key you specify, and return the encrypted data as a result. Many of these stream mode applications require that the data be padded to an 8 byte or 16 byte boundary. That is, if you have a 6 byte field you have to pad the field to 8 bytes in order to encrypt it.

What is AES encryption and why is it important?

Powertech - Products - Encryption
AES is the acronym for Advanced Encryption Standard. This is the encryption method adopted by the National Institute of Standards and Technology (www.nist.gov) after reviewing many encryption alternatives. It is now the federal standard for encryption (FIPS-197) and will replace Triple DES encryption in the near future. Although Triple DES is considered secure, you should avoid using it as it will soon be removed as a federal standard.

What encryption algorithm should we be using? What is AES?

Solutions - Enterprise Trustset
Previously, the best known encryption algorithm in the world was DES (Data Encryption Standard) developed by IBM where it was codenamed Lucifer. Many questions had been raised in the security communities over the continuing safety of that algorithm given the available computer power today to break that algorithm. There were already several algorithms available that were thought to be more resistant to attack than DES. These included CAST, RC2, RC4, Blowfish, Triple or 3-DES.

Are there differences in AES key sizes?

Powertech - Products - Encryption
Yes, AES encryption supports different key sizes including 128-bit and 256-bit keys. The Alliance products from Patrick Townsend & Associates implement the 256-bit key size for encryption to insure the strongest encryption level. In addition to providing stronger encryption, our performance tests showed very little difference in CPU utilization with the stronger algorithm. The Visa PCI-CISP recommendation is for 256-bit AES and Alliance will meet this recommendation perfectly.

What is encryption?

Cypherix Products - Cryptainer LE Frequently Asked Questions
Encryption garbles your data by using irreversible mathematical functions. It is simply the encoding of data so that it cannot be read by anyone who does not know the password that decodes it.

What is AES?

Polycom VSX 7000s FAQ
Advanced Encryption Standard (AES), standard on every VSX 7000s product, is a secure method in which both people and content are encrypted for transmission during a video call. This means that the information cannot be "tapped" or "overheard" by anyone outside the call and both the video and content of your call is secure. Polycom's implementation of AES is FIPS 197 compliant and conforms to the prescribed AES standards as set forth by the National Institute of Standards and Technology (NIST).

When and how was the Program implemented?

Uniform Crime Reports- Frequently Asked Questions
In the 1920s, the International Association of Chiefs of Police (IACP) recognized the potential value in tracking national crime statistics. The Committee on Uniform Crime Records of the IACP developed and initiated this voluntary national data collection effort in 1930. (The IACP continues to advise the FBI on the UCR Program's policies.

Why is it being implemented now?

OHIO: HR FAQ's
With the enactment of H.B. 586, which took effect on March 31, 1997, OPERS began collecting a mitigating rate of 6 percent. Beginning January 1, 1999, OPERS reached full funding, which means there was no unfunded liability. Consequently, OPERS ceased charging a mitigating rate to the ARP participants. In 2002, OPERS was no longer fully funded and thus could have begun charging ARP participants a mitigating rate.

How secure is Encryption?

Cypherix Products - Cryptainer LE Frequently Asked Questions
Passwords within most programs (Word, Excel, Access etc.) can be broken by mere novices without any computing knowledge. Such password breaking tools are easily available on the Worldwide Web, for as little as $5.95, or sometimes even for free! On the other hand, a file that is encrypted with a strong encryption algorithm, for example Blowfish 128 bit that Cryptainer™ LE uses, is statistically impregnable against brute force attacks.

What are the performance differences for encryption between RSA & ElGamal?

PGP DH vs. RSA FAQ
What are the performance differences for signing between RSA & DSS? 3. Hash Function Algorithms in PGP

What are the differences between encryption, visible watermarking and invisible watermarking?

Digital Watermarking from Signum Technologies
Whilst these are all security devices for digital material and the terms are frequently used interchangeably, they are nevertheless three distinctly different protection methods. Encryption works by locking an object file with a 'key' and providing that key only to authorised users.
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