[REBOL] Re: reading back checksum/secure
From: joel:neely:fedex at: 21-Oct-2003 14:11
Hi, Carlos,
You can't. See below.
Carlos Lorenz wrote:
> Considering the following code, how can I get
> :pwd back in plain English?
>
>>>write %password.txt checksum/secure pwd
>>
>
>>>pwd: read %password.txt
>>
>
> == "ç'ÑFJá$6è§&Ú[/^QØ8^[&"
>
Check the help for CHECKSUM:
>> ? checksum
USAGE:
CHECKSUM data /tcp /secure /hash size /method word /key key-value
DESCRIPTION:
Returns a CRC or other type of checksum.
CHECKSUM is a native value.
ARGUMENTS:
data -- Data to checksum (Type: any-string)
REFINEMENTS:
/tcp -- Returns an Internet TCP 16-bit checksum.
/secure -- Returns a cryptographically secure checksum.
/hash -- Returns a hash value
size -- Size of the hash table (Type: integer)
/method -- Method to use
word -- Method (Type: word)
/key -- Returns keyed HMAC value
key-value -- Key to use (Type: any-string)
The description "cryptographically secure" means that it is intended
to be infeasably difficult to reverse the computation.
-jn-
--
----------------------------------------------------------------------
Joel Neely joelDOTneelyATfedexDOTcom 901-263-4446
Enron Accountingg in a Nutshell: 1c=$0.01=($0.10)**2=(10c)**2=100c=$1
