SQL Procedure return x'00' for output parameter with options(*nopass :*omit)

hello,
I'm having some problem with store procedure and hope someone can help
me with it. Here I go:

I have an export procedure, cryptoShadowEncrypt_SP, in a service program
that accepts six parameters. The first two are input only and the last
four are output only parameters. I was able to create a SQL
store-procedure over this export procedure. When I call the store
procedure, the first output parameter returns to me with correct and
expected value. However, the last three output parameters are being
returned with values of x'00'. Below is the prototype and the create
procedure statements:

D cryptoShadowEncrypt_SP...
D pr
D piCryptoFieldID...
D const
D like(cryptoReffldFieldID)
D piPlainText const
D like(cryptoReffldPlainText)
D piRtnIndexValue...
like(cryptoReffldIndexValue)
D piRtnSuccessful...
D n options(*nopass :*omit)
D piRtnMsgID options(*nopass :*omit)
D like(cryptoReffldRtnMsgID)
D piRtnMsgText options(*nopass :*omit)
D like(cryptoReffldRtnMsgText)


create procedure
cryptoShadowEncrypt(
in cryptoFieldID char(30),
in plainText char(32624),
out rtnIndexValue dec(13,0),
out rtnIsSucessful char(1),
out rtnMsgID char(7),
out rtnMsgText char(80)
)

language RPGLE

external name 'PALHC/SVCRYPTO(CRYPTOSHADOWENCRYPT_SP)'

program type sub

not deterministic

no sql

parameter style general




Below is the result when I call it from navigator:
call qgpl.cryptoShadowEncrypt('BLPCUM_CUACCT', '123456789' ,0' ,' ' ,'
',' ')

Output Parameter #3 = 6694

Output Parameter #4 =

Output Parameter #5 =

Output Parameter #6 =