Service password-encryption command
The service password-encryption command is a Cisco IOS configuration command that applies reversible obfuscation to supported plaintext passwords.
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
service password-encryption is a Cisco IOS configuration command that applies reversible obfuscation to configured plaintext passwords.
- How it is used
- Protects Cisco IOS configured passwords from appearing as cleartext in configuration output.
- How deep it goes
- Defines type 0 and type 7 behavior and contrasts reversible encryption with hashing, but does not explain the encryption algorithm internals.
- Examples
- Uses enable password password and service password-encryption to contrast cleartext type 0 with reversible type 7 storage.
- What you can do after
- Configure reversible password obfuscation while recognizing why enable secret is the preferred secure alternative.
Acing the CCNA Exam: Volume 1 Fundamentals and Protocols
The service password-encryption command is a Cisco IOS configuration command that applies reversible type 7 obfuscation to supported cleartext passwords.
- How it is used
- Improves the visibility of passwords in Cisco IOS configuration output while documenting the limitations of legacy enable password protection.
- How deep it goes
- Explains configuration mode, current and future password coverage, type 7 notation, reversal risk, and the no-command limitation.
- Examples
- Uses enable password configuration, filtered running-config output, and type 7 ciphertext beginning with 7.
- What you can do after
- Operate/configure Cisco IOS passwords with type 7 obfuscation and recognize when enable secret is the safer choice.
Related concepts
- encryptionuses · Encryption is the cryptographic transformation of readable data into ciphertext to conceal its contents, reversible through decryption with appropriate information.
- ciphertextconfigures · Ciphertext is data produced by encryption whose original content is intended to be unreadable without the required decryption capability.
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