Author: KAM.covad
Posted: 2009-05-09 at 16:29:23
Thanks,=20
Regarding base64, strconv() does not give the answer I need. I was given =
this reference: http://en.wikipedia.org/wiki/Basic_authentication_scheme
I was able to duplicate their result by using a batch file to run =
openssl. It is not quite as clean as I would like, but it works fine and =
is easy.
The only thing left is UTF-16.
----- Original Message -----=20
From: Andrew Stirling=20
To: profox@leafe.com=20
Sent: Saturday, May 09, 2009 8:05 AM
Subject: Re: VFP9 SP1 encoding little endian UTF 16, SHA1, base64
Kam
You can get the SHA1 done via Craig Boyd's vfpencryption,.fll
http://www.sweetpotatosoftware.com/SPSBlog/2007/08/06/VFPEncryptionUpdate=
.aspx
Function HASH()
Signature: Hash(cStringtoHash[, nHashType])
Parameters:
cStringtoHash - A plain text string you wish to have hashed
nHashType - The type of hash function to generate. There are currently 7 =
different hash functions supported
1 =3D SHA1 (a.k.a SHA160)
2 =3D SHA256
3 =3D SHA384
4 =3D SHA512 *Default
5 =3D MD5
6 =3D RIPEMD128
7 =3D RIPEMD256
SET LIBRARY TO vfpencryption71.fll ADDITIVE
tempText =3D"Hello World" +CHR(13) + " was Jane's quote"
? (Hash(tempText,1)
? STRCONV(Hash(tempText,1),13)
I also think you need to have/download 'msvcp71.dll'
Andrew Stirling
01250 874580
HMRC Accredited UK payroll program
KAM.covad wrote:
> You could, but it has too many years since I did any assembler or C. I =
have 20+ years in VFP so I am going to do everything there if I can. I =
use the windows API alot so will go that way if possible.
>=20
> STRCONV will do the base64 (thanks to Tracy). The VFP manual for XML =
web services talks about UTF-16 (making the double bytes that I need in =
case the password has characters that are not plain text). I still don't =
know about the SHA1.
>=20
>=20
>=20
> ----- Original Message -----=20
> From: Stephen Russell=20
> To: ProFox Email List=20
> Sent: Friday, May 08, 2009 12:38 PM
> Subject: Re: VFP9 SP1 encoding little endian UTF 16, SHA1, base64
>=20
>=20
> On Fri, May 8, 2009 at 1:54 PM, KAM.covad
> <a_gmail_noSpam@kenmcginnis.com> wrote:
>> I need to encode a password:
>> 1. convert to upper case (yes, I know how to do this)
>> 2. Unicode it in little endian UTF16
>> 3. SHA1 it
>> 4. base64 encode it
>>
>> Here is an example I was given, but I have never used those methods =
and I do not believe they are in VFP
>>
>> The encoding process for password is: first convert to uppercase, =
then Unicode it in littleendian
>> UTF16,
>> then SHA1 it,
>> then base64 encode it.
>> UnicodeEncoding encoding =3D new UnicodeEncoding();
>> hashBytes =3D encoding.GetBytes(password.ToUpper().Trim());
>> SHA1 sha1 =3D new SHA1CryptoServiceProvider();
>> byte[] cryptPassword =3D sha1.ComputeHash(hashBytes);
>> String pwd=3D Convert.ToBase64String(cryptPassword);
> -------------------
>=20
> That is straight up C#.
>=20
> You could make a dll to do that and register it.
> You pass in string and it returns string back.
>=20
>=20
[excessive quoting removed by server]