- PRCHES14 ;WISC/RHD/AKS-ESIG MAINT ;AUG 2, 2001
- V ;;5.1;IFCAP;**38**;Oct 20, 2000
- ;Per VHA Directive 10-93-142, this routine should not be modified.
- ;ROUTINE FOR MAINTAINING SUBFIELD 11 (ELECTRONIC SIGNATURE)
- ; FIELD 50 (AMENDMENT) FILE 443.6
- DECODE(LEVEL0,LEVEL1) ;return esig to readable form
- ;returns "" if unsuccessful
- NEW RECORD,RECORD1,VERSION,PERSON,SIG,CHECKSUM
- S RECORD=$G(^PRC(443.6,LEVEL0,6,LEVEL1,0)) I RECORD="" Q ""
- S RECORD1=$G(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- S VERSION=$P(RECORD,"^",11)
- S PERSON=+$P(RECORD1,"^",5)
- I VERSION'="",VERSION'=1 Q ""
- S SIG=$P(RECORD1,"^",6)
- D1 ;esig for ver 1
- S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_LEVEL1_"^"_$$STRING(RECORD,RECORD1))
- Q $$DECODE^PRCUESIG(SIG,PERSON,CHECKSUM)
- ENCODE(LEVEL0,LEVEL1,USERNUM,Y) ;Encode esig for version 1 only
- NEW RECORD,RECORD1,SIGBLOCK,CHECKSUM,OLDUSER
- S USERNUM=+USERNUM
- I USERNUM=0 S Y=-3 Q ;-3 no user number
- S SIGBLOCK=$P($G(^VA(200,USERNUM,20)),"^",2)
- I SIGBLOCK="" S Y=-2 Q ;-2 no signature block
- S RECORD=$G(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- S RECORD1=$G(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- I RECORD="" S Y=-1 Q ;-1 no record
- I $P(RECORD1,"^",6)'="" S Y=-4 Q ;-4 cannot re-sign record
- S OLDUSER=+$P(RECORD1,"^",5)
- I OLDUSER=0 S $P(RECORD1,"^",5)=USERNUM
- I OLDUSER>0 S USERNUM=OLDUSER
- S:$P(RECORD1,"^",8)="" $P(RECORD1,"^",8)=$$NOW^PRCUESIG
- S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_LEVEL1_"^"_$$STRING(RECORD,RECORD1))
- S $P(RECORD1,"^",6)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
- S $P(RECORD,"^",11)="1",$P(RECORD1,"^",7)=$$SUM^PRCUESIG(SIGBLOCK)
- S ^PRC(443.6,LEVEL0,6,LEVEL1,0)=RECORD
- S ^PRC(443.6,LEVEL0,6,LEVEL1,1)=RECORD1
- S Y=1 Q
- ;
- RECODE(LEVEL0,CHECKSUM,Y) ;Recode esig for version 1 only
- NEW RECORD,RECORD1,RECORD12,SIGBLOCK,USERNUM
- S RECORD=$G(^PRC(443.6,LEVEL0,0))
- S RECORD1=$G(^PRC(443.6,LEVEL0,1))
- S RECORD12=$G(^PRC(443.6,LEVEL0,12))
- I RECORD="" S Y=-1 Q ;-1 no record
- ;S USERNUM=+$P(RECORD1,"^",10)
- S USERNUM=DUZ
- I USERNUM=0!'CHECKSUM S Y=-4 Q ;-4 cannot recode record
- S SIGBLOCK=$P($G(^VA(200,USERNUM,20)),"^",2)
- S $P(RECORD12,"^",2)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
- S $P(RECORD12,"^",11,12)="1^"_$$SUM^PRCUESIG(SIGBLOCK)
- S ^PRC(443.6,LEVEL0,12)=RECORD12
- S Y=1 Q
- REMOVE(LEVEL0,LEVEL1) ;Entry point to remove esig from record
- NEW RECORD
- S RECORD=$G(^PRC(443.6,LEVEL0,6,LEVEL1,0)) Q:RECORD=""
- S $P(^PRC(443.6,LEVEL0,6,LEVEL1,1),"^",5,8)="^^^"
- Q
- VERIFY(LEVEL0,LEVEL1) ;verify version 1 signature. Returns 1 if valid
- NEW RECORD,RECORD1,VERSION,SIGBLOCK
- S RECORD=$G(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- S RECORD1=$G(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- S VERSION=$P(RECORD,"^",11),SIGBLOCK=$P(RECORD1,"^",7)
- I VERSION_SIGBLOCK="" Q 1
- Q ($$SUM^PRCUESIG($$DECODE(LEVEL0,LEVEL1))=SIGBLOCK)
- STRING(X,X1) ;Build String of critical fields
- Q $P(X,"^")_"^"_$P(X,"^",2)_"^"_$P(X,"^",3)_"^"_$P(X1,"^",4)_"^"_$P(X1,"^",8)
- --- Routine Detail --- with STRUCTURED ROUTINE LISTING ---[H[J[2J[HPRCHES14 2934 printed Dec 13, 2024@02:07:19 Page 2
- PRCHES14 ;WISC/RHD/AKS-ESIG MAINT ;AUG 2, 2001
- V ;;5.1;IFCAP;**38**;Oct 20, 2000
- +1 ;Per VHA Directive 10-93-142, this routine should not be modified.
- +2 ;ROUTINE FOR MAINTAINING SUBFIELD 11 (ELECTRONIC SIGNATURE)
- +3 ; FIELD 50 (AMENDMENT) FILE 443.6
- DECODE(LEVEL0,LEVEL1) ;return esig to readable form
- +1 ;returns "" if unsuccessful
- +2 NEW RECORD,RECORD1,VERSION,PERSON,SIG,CHECKSUM
- +3 SET RECORD=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- IF RECORD=""
- QUIT ""
- +4 SET RECORD1=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- +5 SET VERSION=$PIECE(RECORD,"^",11)
- +6 SET PERSON=+$PIECE(RECORD1,"^",5)
- +7 IF VERSION'=""
- IF VERSION'=1
- QUIT ""
- +8 SET SIG=$PIECE(RECORD1,"^",6)
- D1 ;esig for ver 1
- +1 SET CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_LEVEL1_"^"_$$STRING(RECORD,RECORD1))
- +2 QUIT $$DECODE^PRCUESIG(SIG,PERSON,CHECKSUM)
- ENCODE(LEVEL0,LEVEL1,USERNUM,Y) ;Encode esig for version 1 only
- +1 NEW RECORD,RECORD1,SIGBLOCK,CHECKSUM,OLDUSER
- +2 SET USERNUM=+USERNUM
- +3 ;-3 no user number
- IF USERNUM=0
- SET Y=-3
- QUIT
- +4 SET SIGBLOCK=$PIECE($GET(^VA(200,USERNUM,20)),"^",2)
- +5 ;-2 no signature block
- IF SIGBLOCK=""
- SET Y=-2
- QUIT
- +6 SET RECORD=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- +7 SET RECORD1=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- +8 ;-1 no record
- IF RECORD=""
- SET Y=-1
- QUIT
- +9 ;-4 cannot re-sign record
- IF $PIECE(RECORD1,"^",6)'=""
- SET Y=-4
- QUIT
- +10 SET OLDUSER=+$PIECE(RECORD1,"^",5)
- +11 IF OLDUSER=0
- SET $PIECE(RECORD1,"^",5)=USERNUM
- +12 IF OLDUSER>0
- SET USERNUM=OLDUSER
- +13 if $PIECE(RECORD1,"^",8)=""
- SET $PIECE(RECORD1,"^",8)=$$NOW^PRCUESIG
- +14 SET CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_LEVEL1_"^"_$$STRING(RECORD,RECORD1))
- +15 SET $PIECE(RECORD1,"^",6)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
- +16 SET $PIECE(RECORD,"^",11)="1"
- SET $PIECE(RECORD1,"^",7)=$$SUM^PRCUESIG(SIGBLOCK)
- +17 SET ^PRC(443.6,LEVEL0,6,LEVEL1,0)=RECORD
- +18 SET ^PRC(443.6,LEVEL0,6,LEVEL1,1)=RECORD1
- +19 SET Y=1
- QUIT
- +20 ;
- RECODE(LEVEL0,CHECKSUM,Y) ;Recode esig for version 1 only
- +1 NEW RECORD,RECORD1,RECORD12,SIGBLOCK,USERNUM
- +2 SET RECORD=$GET(^PRC(443.6,LEVEL0,0))
- +3 SET RECORD1=$GET(^PRC(443.6,LEVEL0,1))
- +4 SET RECORD12=$GET(^PRC(443.6,LEVEL0,12))
- +5 ;-1 no record
- IF RECORD=""
- SET Y=-1
- QUIT
- +6 ;S USERNUM=+$P(RECORD1,"^",10)
- +7 SET USERNUM=DUZ
- +8 ;-4 cannot recode record
- IF USERNUM=0!'CHECKSUM
- SET Y=-4
- QUIT
- +9 SET SIGBLOCK=$PIECE($GET(^VA(200,USERNUM,20)),"^",2)
- +10 SET $PIECE(RECORD12,"^",2)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
- +11 SET $PIECE(RECORD12,"^",11,12)="1^"_$$SUM^PRCUESIG(SIGBLOCK)
- +12 SET ^PRC(443.6,LEVEL0,12)=RECORD12
- +13 SET Y=1
- QUIT
- REMOVE(LEVEL0,LEVEL1) ;Entry point to remove esig from record
- +1 NEW RECORD
- +2 SET RECORD=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- if RECORD=""
- QUIT
- +3 SET $PIECE(^PRC(443.6,LEVEL0,6,LEVEL1,1),"^",5,8)="^^^"
- +4 QUIT
- VERIFY(LEVEL0,LEVEL1) ;verify version 1 signature. Returns 1 if valid
- +1 NEW RECORD,RECORD1,VERSION,SIGBLOCK
- +2 SET RECORD=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,0))
- +3 SET RECORD1=$GET(^PRC(443.6,LEVEL0,6,LEVEL1,1))
- +4 SET VERSION=$PIECE(RECORD,"^",11)
- SET SIGBLOCK=$PIECE(RECORD1,"^",7)
- +5 IF VERSION_SIGBLOCK=""
- QUIT 1
- +6 QUIT ($$SUM^PRCUESIG($$DECODE(LEVEL0,LEVEL1))=SIGBLOCK)
- STRING(X,X1) ;Build String of critical fields
- +1 QUIT $PIECE(X,"^")_"^"_$PIECE(X,"^",2)_"^"_$PIECE(X,"^",3)_"^"_$PIECE(X1,"^",4)_"^"_$PIECE(X1,"^",8)