A great many CGI programs collect some information from the user and use that to form a querey for some backend database or application server. In this case, the performance of the CGI itself is not really significant.
I got CTS from those crappy mice that Sun used to sell. I did two things,
1. Got a nice trackball that works with SUN's keyboards.
2. Got acupuncture. I had to go a couple of times but most of the pain went away when the thrid needle went into my hand between my thumb and index finger. After three acupuncture sessions my pain was very managable. The only time it hurts now is when I dont mind my eronomics.
The system that the FBI wants could be done with algorithms that are quite good. A few years ago the Clinton Administration wanted to outlaw all forms of encryption except for their Clipper Chip.
The Clipper Chip encoded messages with an secret algorithm designed by the NSA called 'Skipjack'. Skipjack is a secret key algorithm like DES, RC4, IDEA, etc. Reviews by outside cryptanalysts working under NDA were largely positive on the strength of Skipjack which uses a 64bit key although it was no better than many of the other algorithms publicly availible.
However, when sending the message encoded with Skipjack, the Clipper Chip prepended a header which was the key used by Skipjack to do the encoding. The header was then encrypted with a public key algorithm like RSA. The government would maintain the private key necessary to decrypt the header thus exposing the "secret" key used by Skipjack and allowing the benevolent government to read the message.
A point of clarity, the "secret" key used by Skipjack was not burned into the Clipper Chip but could be chosen by the user.
Messages encoded by the Clipper Chip would be *very* difficult to crack without the private key for the header; even if someone reverse engineered the chip to reveal the secrets of Skipjack or the header public key.
Disclaimer: I would never use the Clipper Chip or similar scheme; the potential for abuse by Big Brother is too high no matter how good the underlying technology.
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According to some test compiles I did, gcc compiles both constructs to the same assembler output:
.L2
cmpl $0, -4(%ebp)
jne
I vote for readable code.
Actually, even HP/UX 11.00 on PA-RISC uses ELF on 64 bit binaries:
/stand/vmunix /stand/vmunix: ELF-64 executable object file - PA-RISC 2.0 (LP64)
HP-UX ***** B.11.00 U 9000/800 675309372 unlimited-user license
> file
A great many CGI programs collect some information from the user and use that to form a querey for some backend database or application server. In this case, the performance of the CGI itself is not really significant.
I got CTS from those crappy mice that Sun used to sell. I did two things,
1. Got a nice trackball that works with SUN's keyboards.
2. Got acupuncture. I had to go a couple of times but most of the pain went away when the thrid needle went into my hand between my thumb and index finger. After three acupuncture sessions my pain was very managable. The only time it hurts now is when I dont mind my eronomics.
The system that the FBI wants could be done with algorithms that are quite good. A few years ago the Clinton Administration wanted to outlaw all forms of encryption except for their Clipper Chip.
The Clipper Chip encoded messages with an secret algorithm designed by the NSA called 'Skipjack'. Skipjack is a secret key algorithm like DES, RC4, IDEA, etc. Reviews by outside cryptanalysts working under NDA were largely positive on the strength of Skipjack which uses a 64bit key although it was no better than many of the other
algorithms publicly availible.
However, when sending the message encoded with Skipjack, the Clipper Chip prepended a header which was the key used by Skipjack to do the encoding. The header was then encrypted with a public key algorithm like RSA. The government would maintain the private key necessary to decrypt the header thus exposing the "secret" key
used by Skipjack and allowing the benevolent government to read the message.
A point of clarity, the "secret" key used by Skipjack was not burned into the Clipper Chip but could be chosen by the user.
Messages encoded by the Clipper Chip would be *very* difficult to crack without the private key for the header; even if someone reverse engineered the chip to reveal the secrets of Skipjack or the header public key.
Disclaimer: I would never use the Clipper Chip or similar scheme; the potential for abuse by Big Brother is too high no matter how good the underlying technology.