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CICS VERIFY PASSWORD - Verify Password

CICS VERIFY PASSWORD verifies a user password, enabling password management and output processing in CICS environments. It provides efficient password verification capabilities for CICS applications.

What is CICS VERIFY PASSWORD?

CICS VERIFY PASSWORD verifies a user password, enabling password management and output processing. It provides efficient password verification capabilities, allowing applications to verify user passwords.

Command Syntax

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EXEC CICS VERIFY PASSWORD
    USERID(user-id)
    PASSWORD(password)
    [RESP(response-code)]
    [RESP2(response-code-2)]
END-EXEC.

Parameters Explained

USERID Parameter

Specifies the user ID to verify password for:

  • Must be a valid user ID
  • Identifies specific user
  • Required for all VERIFY PASSWORD operations
  • Must be active user

PASSWORD Parameter

Specifies the password to verify:

  • Must be a valid password
  • Contains password to verify
  • Required for all VERIFY PASSWORD operations
  • Must match user password

RESP Parameters

Response codes returned by the command:

  • RESP: Primary response code
  • RESP2: Secondary response code
  • Always check these codes for command success
  • Handle command failures appropriately

Password Types

1. Basic Passwords

  • Basic passwords: Basic passwords
  • Mapped passwords: Mapped passwords
  • Unmapped passwords: Unmapped passwords
  • Custom passwords: Custom passwords

2. Advanced Passwords

  • Advanced passwords: Advanced passwords
  • Secure passwords: Secure passwords
  • Encrypted passwords: Encrypted passwords
  • Compressed passwords: Compressed passwords

3. Specialized Passwords

  • Specialized passwords: Specialized passwords
  • High-performance passwords: High-performance passwords
  • Low-latency passwords: Low-latency passwords
  • High-throughput passwords: High-throughput passwords

Implementation Example

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WORKING-STORAGE SECTION.
01 WS-RESPONSE            PIC S9(8) COMP.
01 WS-RESPONSE2           PIC S9(8) COMP.
01 WS-USER-ID             PIC X(8) VALUE 'USER001'.
01 WS-PASSWORD            PIC X(8) VALUE 'PASSWORD'.
 
PROCEDURE DIVISION.
    * Verify user password
    EXEC CICS VERIFY PASSWORD
        USERID(WS-USER-ID)
        PASSWORD(WS-PASSWORD)
        RESP(WS-RESPONSE)
        RESP2(WS-RESPONSE2)
    END-EXEC.
    
    IF WS-RESPONSE NOT EQUAL DFHRESP(NORMAL)
        EXEC CICS WRITE OPERATOR
            TEXT('VERIFY PASSWORD command failed')
        END-EXEC
        EXEC CICS RETURN END-EXEC
    END-IF.
    
    * Password verified successfully
    * Continue processing

Password Processing

1. Password Preparation

Password preparation includes:

  • Password validation
  • Password formatting
  • Password encoding
  • Password processing

2. Password Transmission

Password transmission includes:

  • Password routing
  • Password delivery
  • Transmission confirmation
  • Error handling

3. Output Management

Output management includes:

  • User management
  • Output formatting
  • User experience
  • Performance optimization

Common Response Codes

Success Response Codes

  • NORMAL (0): Password verified successfully
  • VERIFY (4): Password verified

Error Response Codes

  • INVREQ (16): Invalid request
  • NOTFND (20): User not found
  • LENGERR (22): Length error
  • VERIFY (24): Verify error

Best Practices

1. Password Preparation

  • Prepare password appropriately
  • Validate password content
  • Handle different password types
  • Ensure password integrity

2. Error Handling

  • Check all response codes
  • Handle verify failures
  • Implement retry logic
  • Log error conditions

3. Performance Optimization

  • Minimize password verification
  • Use efficient password formats
  • Optimize user updates
  • Manage user resources

Explain It Like I'm 5 Years Old

Imagine you're checking if a key fits a lock:

When you want to check if a key fits a lock, you put the key in the lock and try to turn it. If the key fits and turns, the lock opens. If the key doesn't fit or doesn't turn, the lock stays closed.

CICS VERIFY PASSWORD is like checking if a key fits a lock. The computer program puts the password in the system and tries to use it. If the password fits and works, the user can get in. If the password doesn't fit or doesn't work, the user can't get in.

Just like you check if a key fits a lock, the computer program checks if a password fits a user!

Exercises

Exercise 1: Password Verification

Write a CICS VERIFY PASSWORD command to verify a user password.

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EXEC CICS VERIFY PASSWORD
    USERID(WS-USER-ID)
    PASSWORD(WS-PASSWORD)
    RESP(WS-RESPONSE)
    RESP2(WS-RESPONSE2)
END-EXEC.

Exercise 2: Password Processing

How would you implement comprehensive password processing that handles different password types and requirements?

Answer: Identify different password types and appropriate handling, implement password validation and encoding, handle different password types and capabilities, implement proper error handling for password verification failures, optimize password verification for performance, and maintain password integrity throughout the process.

Quiz

Question 1

What is the primary purpose of CICS VERIFY PASSWORD?

Answer: B) To verify a user password

Question 2

Which parameter specifies the user ID to verify password for?

Answer: A) USERID

Related Concepts

CICS Password Processing

Password processing and output in CICS

CICS User Management

User management and user interaction in CICS

CICS Output Processing

Output processing and password display in CICS