How to Get a Cisco Password Decryption Algorithm

Written by george garza
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How to Get a Cisco Password Decryption Algorithm
Cisco uses two types of encryption algorithms, a strong type 5 and a weak type 7. (Pictogramm Schloss image by from

There are two encryption methods that Cisco uses, type 7 and type 5. Type 7 encryption, uses a Cisco proprietary weak encryption algorithm, whereas, type 5, uses the MD5 encryption algorithm. For example, the enable password 7 03223B2A15177B4F4007 with encrypted text used a type 7 encryption as you can tell by the 7 before the encrypted text. The enable secret password starting with 5 60p$B8pH$PnncMRbqfaEtR7YxM075B0 is an MD5 type 5 encrypted password.

Skill level:


  1. 1

    Type "enable" to enter the router's privilege mode. The router's editor launches automatically. The modes allow configuration to the router. Think of a mode as a floor in a building, and you can only do certain things on each floor. Privilege mode allows you to see general aspects of the router, like the configuration. To make the configuration changes, you enter global configuration mode.

  2. 2

    Type "configure terminal" to enter the router's global configuration mode. Type "enable password cisco" where this command creates a type 5 encryption using "cisco" as the password.

  3. 3

    Type "enable password encyclopedia" where this command creates a type 7 password using "encyclopedia" as the password.

  4. 4

    Type "verify /md5 disk 1:c7200-js-mz 0f369ed9e98756f179d4f29d6e6644d" to verify the MD5 configuration on the router. This command verifies the checksum value of a file in a flash memory or it computes an MD5 signature for a file.

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