Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.acorn.programmer > #5607 > unrolled thread

Blowfish encryption

Back to article view | Back to comp.sys.acorn.programmer

Contents

  Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-27 16:34 +0000
    Re: Blowfish encryption Martin <News03@avisoft.f9.co.uk> - 2018-11-27 18:03 +0000
      Re: Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-27 19:39 +0000
        Re: Blowfish encryption Dave Symes <dave@triffid.co.uk> - 2018-11-27 19:47 +0000
          Re: Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-27 21:31 +0000
        Re: Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-27 22:22 +0000
        Re: Blowfish encryption Martin <News03@avisoft.f9.co.uk> - 2018-11-27 22:12 +0000
          Re: Blowfish encryption Kevin Wells <kev@kevsoft.co.uk> - 2018-11-28 15:38 +0000
            Re: Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-28 21:16 +0000
    Re: Blowfish encryption David Higton <dave@davehigton.me.uk> - 2018-11-28 21:27 +0000

#5607 — Blowfish encryption

There has been an interesting discussion in csa.apps recently about
encryption, and producing encrypted copies of files.  The discussion
has moved from apps to programmer territory, so I've started this
thread to collect useful info.  It has potential to help more people,
hence this rather than private mail.

Martin Avison has hinted at a bug in the Blowfish module.

Dave

[toc] | [next] | [standalone]

#5608

On 27 Nov in article <20f9995d57.DaveMeUK@my.inbox.com>,
   David Higton <dave@davehigton.me.uk> wrote:
> There has been an interesting discussion in csa.apps recently about
> encryption, and producing encrypted copies of files.  The
> discussion has moved from apps to programmer territory, so I've
> started this thread to collect useful info.  It has potential to
> help more people, hence this rather than private mail.

> Martin Avison has hinted at a bug in the Blowfish module.

There was a bug in versions 1.00-1.02 ... but I fixed it in v1.03.
See History file in zip for details.

Martin

-- 
Martin Avison 
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received. 

[toc] | [prev] | [next] | [standalone]

#5609

In message <575da2234cNews03@avisoft.f9.co.uk>
          Martin <News03@avisoft.f9.co.uk> wrote:

>On 27 Nov in article <20f9995d57.DaveMeUK@my.inbox.com>,
>   David Higton <dave@davehigton.me.uk> wrote:
>> There has been an interesting discussion in csa.apps recently about
>> encryption, and producing encrypted copies of files.  The
>> discussion has moved from apps to programmer territory, so I've
>> started this thread to collect useful info.  It has potential to
>> help more people, hence this rather than private mail.
>
>> Martin Avison has hinted at a bug in the Blowfish module.
>
>There was a bug in versions 1.00-1.02 ... but I fixed it in v1.03.
>See History file in zip for details.

Oh dear:

*help blowfish
==> Help on keyword Blowfish
Module is: Blowfish        1.01 (21 Jun 2003) (c) Gareth McCaughan [32-bit by Stefan Bellon]

That's from the qlok-a app on Nat Queen's web site.

Guess I'd better find yours then!

Dave

[toc] | [prev] | [next] | [standalone]

#5610

In article <eaecaa5d57.DaveMeUK@my.inbox.com>,
   David Higton <dave@davehigton.me.uk> wrote:
> In message <575da2234cNews03@avisoft.f9.co.uk>
>           Martin <News03@avisoft.f9.co.uk> wrote:

> >On 27 Nov in article <20f9995d57.DaveMeUK@my.inbox.com>,
> >   David Higton <dave@davehigton.me.uk> wrote:
> >> There has been an interesting discussion in csa.apps recently about
> >> encryption, and producing encrypted copies of files.  The
> >> discussion has moved from apps to programmer territory, so I've
> >> started this thread to collect useful info.  It has potential to
> >> help more people, hence this rather than private mail.
> >
> >> Martin Avison has hinted at a bug in the Blowfish module.
> >
> >There was a bug in versions 1.00-1.02 ... but I fixed it in v1.03.
> >See History file in zip for details.

> Oh dear:

> *help blowfish ==> Help on keyword Blowfish Module is: Blowfish       
> 1.01 (21 Jun 2003) (c) Gareth McCaughan [32-bit by Stefan Bellon]

> That's from the qlok-a app on Nat Queen's web site.

> Guess I'd better find yours then!

> Dave

If you have or are using the most recent version of Organizer you should
have it.

I have it in the 2.28 archive in the Modules dir.

Dave

-- 

Dave Triffid

[toc] | [prev] | [next] | [standalone]

#5611

In message <575dabab25dave@triffid.co.uk>
          Dave Symes <dave@triffid.co.uk> wrote:

>In article <eaecaa5d57.DaveMeUK@my.inbox.com>,
>   David Higton <dave@davehigton.me.uk> wrote:
>> In message <575da2234cNews03@avisoft.f9.co.uk>
>>           Martin <News03@avisoft.f9.co.uk> wrote:
>
>> >On 27 Nov in article <20f9995d57.DaveMeUK@my.inbox.com>,
>> >   David Higton <dave@davehigton.me.uk> wrote:
>> >> There has been an interesting discussion in csa.apps recently about
>> >> encryption, and producing encrypted copies of files.  The
>> >> discussion has moved from apps to programmer territory, so I've
>> >> started this thread to collect useful info.  It has potential to
>> >> help more people, hence this rather than private mail.
>> >
>> >> Martin Avison has hinted at a bug in the Blowfish module.
>> >
>> >There was a bug in versions 1.00-1.02 ... but I fixed it in v1.03.
>> >See History file in zip for details.
>
>> Oh dear:
>
>> *help blowfish ==> Help on keyword Blowfish Module is: Blowfish       
>> 1.01 (21 Jun 2003) (c) Gareth McCaughan [32-bit by Stefan Bellon]
>
>> That's from the qlok-a app on Nat Queen's web site.
>
>> Guess I'd better find yours then!
>
>> Dave
>
>If you have or are using the most recent version of Organizer you should
>have it.
>
>I have it in the 2.28 archive in the Modules dir.

Thank you for the thought, Dave, but I never have used Organizer.

(I have to admit that, in this day and age, if I ever did use an
organiser, it wouldn't be on a desktop - it would be on a mobile
phone, so that it would always be with me.)

Dave

[toc] | [prev] | [next] | [standalone]

#5612

In message <eaecaa5d57.DaveMeUK@my.inbox.com>
          David Higton <dave@davehigton.me.uk> wrote:

>In message <575da2234cNews03@avisoft.f9.co.uk>
>          Martin <News03@avisoft.f9.co.uk> wrote:
>
>>There was a bug in versions 1.00-1.02 ... but I fixed it in v1.03.
>>See History file in zip for details.
>
>Oh dear:
>
>*help blowfish
>==> Help on keyword Blowfish
>Module is: Blowfish        1.01 (21 Jun 2003) (c) Gareth McCaughan [32-bit by Stefan Bellon]
>
>That's from the qlok-a app on Nat Queen's web site.
>
>Guess I'd better find yours then!

There is a version 1.03 on Nat Queen's site (which suggests that he has
forgotten to update his archives of Q-Lock, which contain version 1.01).
Is that it?

Dave

[toc] | [prev] | [next] | [standalone]

#5613

On 27 Nov in article <eaecaa5d57.DaveMeUK@my.inbox.com>,
   David Higton <dave@davehigton.me.uk> wrote:
> Guess I'd better find yours then!

It is not mine ... v1.03 should be on Nat's website.

Martin

-- 
Martin Avison 
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received. 

[toc] | [prev] | [next] | [standalone]

#5614

In message <575db8e582News03@avisoft.f9.co.uk>
          Martin <News03@avisoft.f9.co.uk> wrote:

>On 27 Nov in article <eaecaa5d57.DaveMeUK@my.inbox.com>,
>   David Higton <dave@davehigton.me.uk> wrote:
>> Guess I'd better find yours then!
>
>It is not mine ... v1.03 should be on Nat's website.
>

It is near the bottom, under Utilities for programmers
>


-- 
Kev Wells
http://kevsoft.co.uk/
carpe cervisium
An' if sometimes our conduck isn't all your fancy paints,

[toc] | [prev] | [next] | [standalone]

#5616

In message <35b9185e57.Kevin@talktalk.net>
          Kevin Wells <kev@kevsoft.co.uk> wrote:

>In message <575db8e582News03@avisoft.f9.co.uk>
>          Martin <News03@avisoft.f9.co.uk> wrote:
>
>>On 27 Nov in article <eaecaa5d57.DaveMeUK@my.inbox.com>,
>>   David Higton <dave@davehigton.me.uk> wrote:
>>> Guess I'd better find yours then!
>>
>>It is not mine ... v1.03 should be on Nat's website.
>>
>
>It is near the bottom, under Utilities for programmers

Thanks, Kevin, I already happened upon it.

I've reminded Nat that his Q-Lock archives need updating.

Dave

[toc] | [prev] | [next] | [standalone]

#5615

In message <20f9995d57.DaveMeUK@my.inbox.com>
          David Higton <dave@davehigton.me.uk> wrote:

>There has been an interesting discussion in csa.apps recently about
>encryption, and producing encrypted copies of files.  The discussion
>has moved from apps to programmer territory, so I've started this
>thread to collect useful info.  It has potential to help more people,
>hence this rather than private mail.

I've just done a test to encrypt and decrypt a file of a little
under 2 GB, on a BBxM.  The source is on NAS accessed via LanMan98;
the encrypted and decrypted files are on an SSD connected via USB.
Encryption and decryption were performed in 32 kiB chunks.

The time to encrypt was 948.62 seconds, and the time to decrypt
was 1264.01 seconds.

I know from previous experiments that the encryption and decryption
times are roughly 90% file handling and only about 10% are the
encryption and decryption, and that encryption and decryption take
similar times (not surprising since the algorithms are almost
identical).

I think it was really interesting that LM98 -> SSD was much faster
than SSD -> SSD, although it may be that the SSD was slowed down by
having to deal with a read file and a write file at the same time.

Dave

[toc] | [prev] | [standalone]

Back to top | Article view | comp.sys.acorn.programmer

csiph-web