Jim Savage wrote:
New to cryptography, I'm using IBM callable services CSNBENC and CSNBDEC
to encrypt/decrypt fields in SMS files. It seems I need to obtain a key
identifier by calling CSNBKGN and also specify an initialization vector to
encrypt. Are these two calling parameters 'keys' for the encryption? Are they
stored somewhere (and retreivable for decryption) in the calling services
software? or do I store one or both of them on my own in a file secured by
some means? The IBM manuals seem to assume a level of knowledge I just
don't have on this subject. Help!
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We create a key using the KGUP utility program. This key is then
accessed by the ICSF CSFKRR api. The key is accessed via the keylabel
you select in the key creation process.
After the ICSF CSFKRR service reads the key from the CKDS database it
returns a token value which is used by the decrypt and encrypt routines.
Did this answer your questions?
--
Mark Jacobs
Technical Services
Time Customer Service - Tampa, FL
------
Victory in defeat, there is none higher. She didn't give up, Ben;
she's still trying to lift that stone after it has crushed her.
She's a father going down to a dull office job while cancer is
painfully eating away his insides, so as to bring home one more pay
check for the kids. She's a twelve-year-old girl trying to mother her
baby brothers and sisters because Mama had to go to Heaven. She's a
switchboard operator sticking to her job while smoke is choking her
and the fire is cutting off her escape. She's all the unsung heroes
who couldn't quite cut it but never quit.*
Robert A. Heinlein - Stranger in a Strange Land
*Referring to the Auguste Rodin sculpture, Caryatid Who Has Fallen under Her
Stone
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