Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
Bart wrote: 2.7 branch will never be a stable release. Eventually we'll get a 2.8 release. I think that needs to be made to sound more deliberate, for Dennis's benefit. Please could any of the core team jump on me if some detail's wrong, but: 1.x is obsolete, consideration of whether it's stable or unstable isn't relevant. 2.x.y includes both stable and non-stable releases. The non-stable releases in particular include trunk. Where x is an even number, it's a stable release. So 2.0, 2.2, 2.4 and 2.6 are stable, with 2.8 being the next stable release. Where x is an odd number, it's not a stable release and should not be used for production purposes: specifically, it should not be used for compiling FPC itself or for compiling Lazarus etc. except as directed by developers. The same pattern might or might not be followed by the y digit. I think that trunk is currently 2.7.1. There are some things in trunk which will go into 2.8, others will remain in trunk when it becomes 2.9, others will be removed or left optional for experimentation. There are cases where a developer will tell you to use a particular release (which might have a non-obvious numeric relationship to the current stable version) to get around a code-generation problem, but otherwise except for testing purposes you should stick to the even numbers. This echoes the development practice of the Linux kernel, and is increasingly common practice. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
Am 11.12.2013 10:05, schrieb Mark Morgan Lloyd: Bart wrote: 2.7 branch will never be a stable release. Eventually we'll get a 2.8 release. I think that needs to be made to sound more deliberate, for Dennis's benefit. Please could any of the core team jump on me if some detail's wrong, but: You are nearly correct excep: There are some things in trunk which will go into 2.8, others will remain in trunk when it becomes 2.9, others will be removed or left optional for experimentation. 2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). * To be more precise: 2.8 will be branched from 2.7.1 and 2.7.1 will then become 2.9.1. Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
Sven Barth wrote: Am 11.12.2013 10:05, schrieb Mark Morgan Lloyd: Bart wrote: 2.7 branch will never be a stable release. Eventually we'll get a 2.8 release. I think that needs to be made to sound more deliberate, for Dennis's benefit. Please could any of the core team jump on me if some detail's wrong, but: You are nearly correct excep: There are some things in trunk which will go into 2.8, others will remain in trunk when it becomes 2.9, others will be removed or left optional for experimentation. 2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). * To be more precise: 2.8 will be branched from 2.7.1 and 2.7.1 will then become 2.9.1. But you do reserve the right to spring surprises on people who use odd-numbered releases incautiously. I've certainly been confused at times. I forget the detail, but IIRC it was something like an ARM fpu variant which was more robust in 2.5.1 despite 2.6.0 having been released... that example might be inaccurate but I'm just trying to emphasise as part of the FAQ that there are pitfalls for somebody who tries to use odd-numbered releases just because they're the most recent. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). what is the timeframe of 'sooner or later'? May I assume Q1 of 2014? Dennis ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
Am 11.12.2013 11:14, schrieb Mark Morgan Lloyd: Sven Barth wrote: Am 11.12.2013 10:05, schrieb Mark Morgan Lloyd: Bart wrote: 2.7 branch will never be a stable release. Eventually we'll get a 2.8 release. I think that needs to be made to sound more deliberate, for Dennis's benefit. Please could any of the core team jump on me if some detail's wrong, but: You are nearly correct excep: There are some things in trunk which will go into 2.8, others will remain in trunk when it becomes 2.9, others will be removed or left optional for experimentation. 2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). * To be more precise: 2.8 will be branched from 2.7.1 and 2.7.1 will then become 2.9.1. But you do reserve the right to spring surprises on people who use odd-numbered releases incautiously. I've certainly been confused at times. I forget the detail, but IIRC it was something like an ARM fpu variant which was more robust in 2.5.1 despite 2.6.0 having been released... that example might be inaccurate but I'm just trying to emphasise as part of the FAQ that there are pitfalls for somebody who tries to use odd-numbered releases just because they're the most recent. I don't remember the FPU part right now, but it might have been shortly after the branch of 2.6.0 and before the renaming of trunk from 2.5.1 to 2.7.1... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
Am 11.12.2013 12:39, schrieb Dennis Poon: 2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). what is the timeframe of 'sooner or later'? May I assume Q1 of 2014? Even if we'd branch now it would be around 6 months until a release. AFAIR Jonas already proposed branching 2.8.0 in the near future (this year at best) so this would mean a release in summer 2014 (though this is not a given of course). Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] when will Free Pascal have a stable release of 2.7.2?
On Wed, December 11, 2013 12:39, Dennis Poon wrote: 2.7.1 will become 2.8 sooner or later (*) and what's in trunk at that time will also be in 2.8.0 (and normally we don't deliberately remove things... ^^ ). what is the timeframe of 'sooner or later'? May I assume Q1 of 2014? My personal view: fairly unlikely. We plan to finish the 2.6.4 release first. I do not expect that we are able to release 2.8.0 so quickly after 2.6.4. Tomas ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] MD5 decryption?
Hello, How to decrypt a MD5 in FPC?: http://md5decryption.com -- Silvio Clécio My public projects - github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Re: MD5 decryption?
On 11/12/2013 17:41, silvioprog wrote: How to decrypt a MD5 in FPC?: You're not supposed to. MD5 is a one way hash function. Otherwise use rainbow tables, brute force attack etc. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
Once upon a time, silvioprog said: Hello, How to decrypt a MD5 in FPC?: MD5 is a hashing algorithm, not an encryption algorithm. There is more than one input for this algorithm which will generate the same hash, as opposed to a cipher. -- Ewald ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
Not sure if this helps or not: http://wiki.freepascal.org/hash On 12/11/2013 10:41 AM, silvioprog wrote: Hello, How to decrypt a MD5 in FPC?: http://md5decryption.com http://md5decryption.com/ -- Silvio Clécio My public projects - github.com/silvioprog http://github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
2013/12/11 Ewald ew...@yellowcouch.org Once upon a time, silvioprog said: Hello, How to decrypt a MD5 in FPC?: MD5 is a hashing algorithm, not an encryption algorithm. There is more than one input for this algorithm which will generate the same hash, as opposed to a cipher. -- Ewald Go to: http://md5decryption.com In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. -- Silvio Clécio My public projects - github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
On Wed, 11 Dec 2013, silvioprog wrote: 2013/12/11 Ewald ew...@yellowcouch.org Once upon a time, silvioprog said: Hello, How to decrypt a MD5 in FPC?: MD5 is a hashing algorithm, not an encryption algorithm. There is more than one input for this algorithm which will generate the same hash, as opposed to a cipher. -- Ewald Go to: http://md5decryption.com In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. You should read the description. They look in a database. They don't do actual decryption. Michael.___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
Am 11.12.2013 17:54, schrieb silvioprog: 2013/12/11 Ewald ew...@yellowcouch.org mailto:ew...@yellowcouch.org Once upon a time, silvioprog said: Hello, How to decrypt a MD5 in FPC?: MD5 is a hashing algorithm, not an encryption algorithm. There is more than one input for this algorithm which will generate the same hash, as opposed to a cipher. -- Ewald Go to: http://md5decryption.com http://md5decryption.com/ In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. Please read what they write on their web page (stresses by me): === quote begin === Encrypt MD5 hash, Decrypt MD5 hash MD5Decryption.com allows you to enter a MD5 hash and we will look *into our database* and try to decrypt MD5. Basically it is a MD5 decrypter. What is an MD5 hash, or MD5 Checksum? MD5 is a 128-bit message digest function. It is used commonly in user authentication and MD5 checksum for data integrity. How many MD5 hashes are in our database? *We have encrypted* more than 105,300,000 words, phrases, acronyms, etc since 2006. === quote end === So they have build themselves a database of a limited number of md5 hashes and use that to resolve your requests. MD5 is a one way hashing function. Full stop. Don't believe it? Well... I generated a hash of wrxlbrmpf which is d162435be814d6c6f4e1e4f077e5343d. This hash is not found in their database. Or better yet: Hash a 1GB movie and ask them to decrypt that. It would definitely be awesome if you could store a 1GB movie inside a 16-Byte hash... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
2013/12/11 Michael Van Canneyt mich...@freepascal.org On Wed, 11 Dec 2013, silvioprog wrote: 2013/12/11 Ewald ew...@yellowcouch.org Once upon a time, silvioprog said: Hello, How to decrypt a MD5 in FPC?: MD5 is a hashing algorithm, not an encryption algorithm. There is more than one input for this algorithm which will generate the same hash, as opposed to a cipher. -- Ewald Go to: http://md5decryption.com In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. You should read the description. They look in a database. They don't do actual decryption. Michael. Ah ha... I haven't seen this detail. xD Phew, I was thinking it would be possible to know the hidden text in a hash. -- Silvio Clécio My public projects - github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
Once upon a time, silvioprog said: 2013/12/11 Ewald ew...@yellowcouch.org mailto:ew...@yellowcouch.org Go to: http://md5decryption.com http://md5decryption.com/ In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. Yes, I've seen the site, what they probably do is a reverse lookup in a table, but it cannot be called `decryption`. Encryption is two way: an output can be converted back to the original input. This is not the case with a hashing function. Take for example a very simple function that xor's all input bytes together (with MD5 it boils down to the same, albeit a bit more complex). If I give you the output $F0, how do you know what was the original input? The answer is you don't. It could be [$80 $70] as well as it could have been [$C0 $FF $30 $FF]... While both algorithm types (encryption and hashing) are related (the above xor example classified as a checksum, whereas xor encryption also exists), they are definitly not the same. -- Ewald ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
Once upon a time, Michael Van Canneyt said: You should read the description. They look in a database. They don't do actual decryption. Yep, that's what I did, I even looked at the little line advertising how much records they had in their database. Most unfortunately though it cannot be called decryption. If I would advertise a bicycle as a car to you there would also be some confusion don't you think :-) -- Ewald ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] MD5 decryption?
2013/12/11 Ewald ew...@yellowcouch.org Once upon a time, silvioprog said: 2013/12/11 Ewald ew...@yellowcouch.org Go to: http://md5decryption.com In Please input the MD5 hash that you would like to be decrypted: field, put: 7db4a8dae498d1b4686ebd1f79326602 See the result in Decrypted Text: field. Yes, I've seen the site, what they probably do is a reverse lookup in a table, but it cannot be called `decryption`. Encryption is two way: an output can be converted back to the original input. This is not the case with a hashing function. Take for example a very simple function that xor's all input bytes together (with MD5 it boils down to the same, albeit a bit more complex). If I give you the output $F0, how do you know what was the original input? The answer is you don't. It could be [$80 $70] as well as it could have been [$C0 $FF $30 $FF]... While both algorithm types (encryption and hashing) are related (the above xor example classified as a checksum, whereas xor encryption also exists), they are definitly not the same. -- Ewald Nice explanation, thanks! (y) -- Silvio Clécio My public projects - github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] arm-embedded and interrupts
op 11-12-13 19:36, Jeppe Græsdal Johansen schreef: What am I doing wrong ? Thanks for any pointers. Koenraad Lelong The Cortex-M RTL units were changed some time ago to favour a more flexible way of doing interrupt handling for embedded devices, by implementing assembler support for weak references and scrapping the old compiler integrated interrupt vector system. Now to declare an interrupt routine you would do: procedure SysTick_interrupt; [public, alias: 'SysTick_interrupt']; begin end; You can check the source code of the RTL unit you are using to find the names of the interrupt handler functions. Thanks, That works. I already found the names, but I didn't know how to declare the interrupts, so now I do. I hope to do some real work in the next few weeks. Regards, Koenraad Lelong ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: MD5 decryption?
Reinier Olislagers wrote: Please don't take this as an insult, but make sure you don't design/implement any password/encryption schemes if you don't know what you're doing... Most people who /do/ know what they're doing shouldn't try to design encryption or hashing schemes, although it must be said that most World-class fsckups have resulted from key distribution and storage failures. For the uninitiated, there's interesting info on crypto history and practice on John Savard's website http://www.quadibloc.com/ -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
