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r4wp7
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world-name: r4wp

Group: #Red ... Red language group [web-public]
DocKimbel:
22-Sep-2012
Marco: besides coding in Red/System, I don't see what you could do 
currently to speed it up. Here are some ideas for the additional 
coding that will need to be done:


You can write in Red/System some of the non-trivial natives, like 
e.g. set natives: sort, union, intersect, unique, difference. Other 
natives or support code we will need are codecs for:

- compression supporting these algorithms: deflate, lzo

- cryptography: MD5, SHA-1, AES, ...(all the required ones for SSH 
and SSL support)


You can port C code to Red/System, there are tons of available C 
source code, you just have to make it right (crypto requires accurate 
coding, implementations need to be deeply tested for flaws).
Group: Announce ... Announcements only - use Ann-reply to chat [web-public]
Robert:
27-Jan-2013
New Android release:

URL		: http://development.saphirion.com/experimental/

Direct URL	: http://development.saphirion.com/experimental/r3-droid.apk

Changes:
-added DH and AES 128/256 encryption
-rewritten console syncing code
-TLS scheme improvements
-fixed runtime stack size issue
-fixed FP math using dtoa()  (thanks to Ladislav!)
-fixed shared lib unloading issue
-fixed "exit on script error" bug
-minor app handling tweaks

Please give it a try and have fun.
Group: Rebol School ... REBOL School [web-public]
PeterWood:
16-Apr-2012
This is probably because there is no 512-bit AES algorithm -- see 
http://en.wikipedia.org/wiki/AES%5F%28cipher%29
PeterWood:
16-Apr-2012
The final paragraph of the section titled the algorithm in the wikipedia 
enttyr for Blowfish explains that it is possible to implekment the 
algorithm with keys of up to 576 bits long but not advised by the 
author of the algorithm. Though when I was using REBOL for some testing, 
I set the strength to 448. 


I would have thought that AES 256 would suffice for for most purposes 
needing symmetrical encryption
caelum:
16-Apr-2012
AES 256 is more than sufficient for most purposes. I am researching 
what Rebol can do so I am aware of the parameters I am working within. 
I am writing code that will be used to encrypt communication between 
clients who want a secure communication facility.


I am looking at the Rebol RSA algorithms now. Thanks for your input.
caelum:
2-Aug-2013
When R3 was open sourced, I presume the SDK was not also open sourced? 
I am looking for the 'C' source code for the RSA, AES and Blowfish 
encryption functions.
Group: !REBOL3 ... General discussion about REBOL 3 [web-public]
Cyphre:
18-Jan-2013
I have AES algo prepared for integration. Currently we are looking 
for good implementations of: SHA256, DH and 3DES

world-name: r3wp

Group: All ... except covered in other channels [web-public]
Gabriele:
7-Jan-2005
hmm, knowing Maarten, I guess he's actually using AES, which is 128 
bit; the RSA key is probably 1024.
Graham:
28-Jun-2008
All this to download the pka aes upgrade :(
Group: Core ... Discuss core issues [web-public]
Allen:
2-Nov-2006
Encloak  -- http://www.rebol.net/cookbook/recipes/0023.html-- Carl 
says


Newer versions of REBOL include "cloaking" functions for encrypting 
and decrypting strings. These functions do not provide full strength 
encryption such as Blowfish, AES, or RSA as found in REBOL/Command, 
nevertheless they can be useful for hiding passwords and other values. 
(That's why we call it cloaking rather than encrypting.)
Group: SDK ... [web-public]
Rondon:
13-Jan-2012
I'd like to encrypt json text using Rebol and AES encryption. And 
decrypt this using javascript. Do you have any idea how to do this 
using Rebol. I mean the AES encryption. I mean : txt: "blablablba" 
 key: #CEDEFF.. encrypt  txt key   ...  using AES rhinjael algorithm 
.. thanks
GrahamC:
13-Jan-2012
I tried to do AES encryption but anything I encypted was not de-crpytable 
by standard tools
Gabriele:
16-Jan-2012
Graham: IIRC Maarten was able to use AES with REBOL and OpenSSL. 
I seem to remember that I had tried that and was successful as well. 
In any case, the only reason I can think of that would make it not 
work is a difference in the IV and padding.
Cyphre:
16-Jan-2012
Graham: I was able to implement TLS1.0 protocol configured to use 
the TLS_RSA_WITH_RC4_128_SHA cipher-suite. All the mentioned algorithms 
were calculated using the  build-in Rebol2 encryption functionality. 
I had no problems regarding the compatibility. I haven't tried the 
cipher-suite with the AES enctryption though but my guess it will 
work as well.
Group: SQLite ... C library embeddable DB [web-public].
Robert:
24-Apr-2006
WRT encryption. I found one implementation (you need to buy a license) 
that supports transparent encryption. IIRC I posted the link some 
time ago. I will have a look at the C code and there at the storage 
stuff to see how hard it is to add an AES encryption of storage pages. 
IMO it can't be that hard.
Group: !REBOL3 Schemes ... Implementors guide [web-public]
Graham:
12-Jan-2010
GNU TLS supports

Certificate types:	X.509, OPENPGP
Protocols:	TLS1.2, TLS1.1, TLS1.0, SSL3.0

Ciphers:	AES-256-CBC, AES-128-CBC, 3DES-CBC, CAMELLIA-128, CAMELLIA-256, 
ARCFOUR, ARCFOUR-40
MACs:	SHA512, SHA384, SHA256, SHA1, RMD160, MD5

Key exchange algorithms:	RSA, RSA-EXPORT, DHE-DSS, DHE-RSA, DHE-PSK, 
PSK, SRP, SRP-RSA, SRP-DSS, ANON-DH
Compression methods:	DEFLATE, LZO, NULL

Extensions:	Max record size, Cert Type (OpenPGP), Server Name, SRP, 
TLS/IA, Opaque PRF Input
Group: Core ... Discuss core issues [web-public]
GrahamC:
19-Nov-2010
ie. I want to be sure that if I send a file encrypted using AES, 
that someone can decrypt it.
PeterWood:
19-Nov-2010
Try here: http://www.movable-type.co.uk/scripts/aes.html
PeterWood:
1-Apr-2011
RSA is not really designed to encrypt large chunks of data. You'd 
be better of using AES (or  Rijndael as it used to be known as is 
still called in REBOL).


RSA is better used for exchanging passwords and "signing" documents.
GrahamC:
1-Apr-2011
so I would use AES to encrypt the data,and then use RSA to encrypt 
the AES encryption key I guess
GrahamC:
1-Apr-2011
trouble is I've not had any luck with decrypting stuff encrypted 
by Rebol with AES by other AES decryption tools
PeterWood:
1-Apr-2011
Yes you would use AES to encrypt the data and then RSA to encrypt 
and send somebody the encryption key.
PeterWood:
1-Apr-2011
Also, from Wikipedia - AES has a fixed block size of 128 bits whereaas 
Rjindael can have a blocksize in any multiple of 32 between 128 and 
256 bits.