It hunts down the fastest DNS servers available for your computer to use. namebench runs a fair and thorough benchmark using your web browser history, tcpdump output, or standardized datasets in order to provide an individualized recommendation. namebench is completely free and does not modify your system in any way. This project began as a 20% project at Google.

namebench runs on Mac OS X, Windows, and UNIX, and is available with a graphical user interface as well as a command-line interface.

Crypto javascripts AES, SHA etc

ES is a ‘symmetric block cipher’ for encrypting texts which can be decrypted with the original encryption key.

For many purposes, a simpler encryption algorithm such as TEA is perfectly adequate – but if you suspect the world’s best cryptographic minds, and a few million dollars of computing resource, might be attempting to crack your security, then AES, based on the Rijndael algorithm, is the tightest security currently available (approved by the US government for classified information up to ‘Secret’ – and in in 192 or 256 key lengths, up to ‘Top Secret’). AES was adopted by NIST in 2001 as FIPS-197, and is the replacement for DES which was withdrawn in 2005.

JavaScrypt's encryption facilities use the Advanced Encryption Standard (AES) adopted by the United States as Federal Information Processing Standard 197. AES supports key lengths of 128, 192, and 256 bits; JavaScrypt uses 256 bit keys exclusively.

he JavaScript Crypto Library provides web developers with an extensive and efficient set of cryptographic functions. The library aims to obtain maximum execution speed while preserving modularity and reusability. The library is released as open source under an AGPL license. If you are a web developer and into Javascript check it out!
# the fastest AES-256;
# the only available Javascript implementation of:

* Fortuna, a strong pseudo-random number generator;
* SRP, the verifier-based authentication protocol;

# a robust and efficient SHA-2 hash function

The Rijndael algorithm was announced as the winner of the Advanced Encryption Standard (AES) in 2001. This algorithm is intended to replace the DES algorithm. AES was designed to be efficient in both hardware and software, and supports a block length of 128 bits and key lengths of 128, 192, and 256 bits. AES is defined in Fips 197. Click here for a description of how AES works.

hy use cryptography in Javascript? One major reason is the need to encrypt data before uploading it to a server; this is useful where the server needs to store data but doesn't wish to see it in the clear. It can also be used in desktop applications written in Javascript – for example, Firefox extensions.

We offer a fast, small symmetric encryption library written in Javascript. Though several such libraries exist, jsCrypto offers several advantages.

* A clean, simple interface to basic AES encryption/decryption, as well as OCB and CCM modes for authenticated encryption
* A cryptographic random number generator that collects randomness from user mouse movements, among other sources
* jsCrypto is at least four times faster in all browsers and about 12% smaller than the best previously existing implementation
* In Internet Explorer, jsCrypto is 11 times faster than the fastest previous existing implementation