Cisco "Type 5" passwords cannot be directly decrypted because they are stored as one-way MD5 hashes, not encrypted strings. While there is no "decrypt" button for these, they are vulnerable to recovery through brute-force or dictionary attacks using common security tools. Key Technical Characteristics
Storage Method: Uses the MD5 hashing algorithm to obscure the original text.
Irreversibility: Unlike Type 7 passwords (which use a simple XOR cipher and are easily reversed), Type 5 is mathematically designed to be one-way.
Command: Generated using the enable secret command in global configuration mode. Security Vulnerabilities
Although more secure than Type 7, Type 5 is now considered legacy and insecure due to modern computing power:
Rainbow Tables: Attackers can use precomputed tables of MD5 hashes to "reverse" common or weak passwords in seconds.
Lack of Salt Diversity: While Type 5 uses a "salt" to make the hash unique, the MD5 algorithm itself is fast, allowing attackers to test millions of combinations per second. Best Practices & Modern Alternatives
Experts at Network-Switch and Cisco recommend moving away from Type 5 hashes for better security:
Type 8 (SHA-256): A much stronger hashing algorithm that is resistant to modern cracking.
Type 9 (Scrypt): The current gold standard, specifically designed to be extremely slow for hardware to brute-force.
Type 6 (AES): Used for reversible encryption when a device needs to know the actual password to communicate with another system.
The Myth of Decryption: Understanding Cisco Type 5 Password Security
In the realm of network security, the phrase "Cisco Type 5 password decrypt" is a misnomer. Unlike the weak Type 7 "encryption," which uses a reversible Vigenère cipher, a Cisco Type 5 password is not encrypted at all—it is
. This fundamental difference means that there is no "key" to reverse the process; the only way to recover the original password is to crack it through brute force or dictionary attacks. 1. The Mechanics of Type 5 Hashes
Introduced around 1992 to replace insecure plaintext storage, Type 5 utilizes the MD5 (Message-Digest 5)
algorithm. To prevent simple lookup table attacks, Cisco implemented several security measures: Router-Switch.com
Every Type 5 hash includes a random 32-bit (4-character) salt. This ensures that even if two users have the same password, their stored hashes will look entirely different, effectively neutralizing rainbow tables. Iteration: The algorithm runs MD5 over the result 1,000 times
. While this was substantial in the 1990s, it serves as a speed bump rather than a wall for modern hardware. Cisco Community 2. The Vulnerability Gap
While technically "one-way," Type 5 hashes are considered insecure by modern standards. The MD5 algorithm itself is no longer approved by NIST. On modern computers, MD5 hashes can be calculated "lightning-fast". Cisco Community Cracking Tools: Tools like
can leverage powerful GPUs to test millions of password combinations per second. Weak Passwords:
If the original password is short or a common word, these tools can recover it in seconds. 3. Modern Best Practices
Because of the relative ease of cracking MD5-based hashes, security organizations like the NSA and Cisco themselves recommend moving to more robust types: U.S. Department of War (.gov) User Mode and Privileged Mode Security - NetworkLessons.com
The Myth of Cisco Type 5 "Decryption": Hashing vs. Cracking The phrase "Cisco Type 5 password decrypt" is a technical misnomer often found in network security discussions. While users frequently seek tools to "decrypt" these strings to recover lost access, the cryptographic reality is that Type 5 passwords are not encrypted; they are
. This distinction is critical because encryption is a two-way process designed to be reversed with a key, whereas hashing is a one-way mathematical function designed to be irreversible. The Mechanics of Type 5 Hashing Introduced around 1992, Cisco Type 5 passwords utilize the MD5 (Message-Digest 5)
algorithm. Unlike the older Type 7 passwords—which use a simple, easily reversible Vigenère cipher—Type 5 was designed to be much more secure. The Type 5 process involves several layers of protection:
Understanding Cisco Type 5 Passwords: Can They Be Decrypted?
If you’ve ever looked at a Cisco router configuration, you’ve likely seen a line starting with enable secret 5. This "Type 5" designation indicates that the password is obfuscated using a hashing algorithm, specifically MD5 (Message Digest 5).
Network administrators often find themselves needing to recover these passwords when documentation is lost. However, there is a fundamental difference between "decrypting" and "cracking" that is crucial to understand. The Reality: Decryption vs. Cracking Technically, you cannot decrypt a Cisco Type 5 password.
Unlike Type 7 passwords (which use a weak XOR cipher and can be instantly reversed), Type 5 passwords are hashed, not encrypted. Hashing is a one-way function. You cannot mathematically "undo" an MD5 hash to get the original plaintext.
To "decrypt" it, you must use a brute-force or dictionary attack. This involves taking millions of potential passwords, hashing them using the same MD5 algorithm, and seeing if the resulting hash matches the one in your config file. How to "Decrypt" (Crack) a Cisco Secret 5 Password
If you have the hash (e.g., $1$v9H1$9vM8...) and need the plaintext, you have three primary options: 1. Online Decryptors (Fastest)
There are several websites maintained by security enthusiasts that host massive databases of pre-computed hashes (Rainbow Tables).
How it works: You paste your hash into the search bar. If someone has cracked that specific password before, the site will show you the plaintext instantly.
Risk: Never upload hashes from sensitive production environments to third-party sites, as you are essentially handing over your credentials. 2. Using Hashcat (Most Powerful)
Hashcat is the industry standard for password recovery. It uses your computer’s GPU to cycle through billions of combinations per second.
Command Example:hashcat -m 500 hash_file.txt wordlist.txt(Note: Mode 500 is the designation for md5crypt, which Cisco uses for Type 5). 3. John the Ripper (User Friendly)
"John" is another classic tool that is highly effective for Linux and macOS users. It is simpler to set up than Hashcat for basic dictionary attacks. Type 5 vs. Type 7 vs. Type 8/9 As security evolved, Cisco introduced newer formats:
Type 7: Extremely weak. Can be decrypted in seconds with any "Cisco Password Cracker" website. cisco secret 5 password decrypt
Type 5: Moderate security. Uses MD5 with a salt. It is vulnerable to modern GPU cracking but much safer than Type 7.
Type 8 & 9: The current standard. These use SHA-256 and scrypt, which are significantly harder and slower to crack than Type 5. Best Practices for Network Security
If you are still using Type 5 passwords, your network is potentially vulnerable to offline cracking if an attacker gains access to your configuration files. Recommendations:
Upgrade to Type 9: Use the algorithm-type scrypt command when setting your secret.
Use Strong Passphrases: Length is the greatest enemy of cracking tools. A 15-character random phrase can take years to crack, even with Type 5 MD5.
Secure Config Access: Limit who can run show running-config and ensure your TFTP/SCP backup servers are hardened.
While you can't technically "decrypt" a Cisco Secret 5 password, you can crack it using modern computational power. If you’ve lost your password, try an offline tool like Hashcat first to keep your data private.
This article explores why Type 5 cannot be "decrypted," how they can be cracked through alternative methods, and why you should migrate to more modern Cisco security standards. 1. Understanding Cisco Type 5: Hashing vs. Encryption
Cisco Type 5 is a one-way function. When you set an enable secret, the device runs your password through an MD5 hashing algorithm with a random 32-bit salt.
One-Way Nature: The device never stores the actual password, only the result of the hash. When you log in, the device hashes your input and compares it to the stored hash.
No Decryption Key: Because no encryption key exists, there is no mathematical way to simply "reverse" the string back into plaintext. 2. Can You Crack a Type 5 Password?
While you cannot "decrypt" it, you can crack it using brute-force or dictionary attacks.
How It Works: An attacker takes a list of common passwords (a dictionary), hashes each one using the same salt found in your configuration, and compares the results.
Speed: Because MD5 is computationally "cheap" by modern standards, high-end GPUs can test millions of combinations per second.
Tools: Popular tools for this process include Hashcat and John the Ripper. 3. Comparison: Type 5 vs. Type 7
Many users confuse Type 5 with the older Type 7 (used by the service password-encryption command).
Cisco Type 5 passwords utilize a salted MD5 hash, making them irreversible via standard decryption but vulnerable to cracking tools like Hashcat or John the Ripper. While brute-forcing these weak, legacy hashes is often effective, security best practices recommend upgrading to Type 8 or 9 algorithms to enhance password security. For a detailed guide on reversing these hashes, visit Cisco Community.
Cisco Secret 5 Password Decrypt: A Comprehensive Guide
Cisco devices, such as routers and switches, use a variety of password encryption methods to protect user access. One of the most commonly used encryption methods is the "secret 5" password encryption. While this encryption provides an additional layer of security, it can also make it challenging for network administrators to recover or decrypt the password when needed. In this article, we will explore the concept of Cisco secret 5 password encryption, the reasons why decryption is necessary, and most importantly, provide a step-by-step guide on how to decrypt a Cisco secret 5 password.
Understanding Cisco Secret 5 Password Encryption
Cisco devices use a variety of password encryption methods, including:
The "secret 5" password encryption, also known as Type 5, uses the MD5 (Message-Digest Algorithm 5) hashing algorithm to encrypt the password. When a password is configured with the "secret 5" command, the password is hashed using MD5, and the resulting hash value is stored in the device's configuration file.
Why Decrypt a Cisco Secret 5 Password?
There are several reasons why a network administrator might need to decrypt a Cisco secret 5 password:
Can Cisco Secret 5 Passwords be Decrypted?
The short answer is: no, Cisco secret 5 passwords cannot be decrypted in the classical sense. Since the password is hashed using a one-way hashing algorithm (MD5), it is not possible to directly reverse-engineer the original password from the hash value.
However, there are a few workarounds that can help:
Step-by-Step Guide to Decrypting a Cisco Secret 5 Password
While it is not possible to directly decrypt a Cisco secret 5 password, you can use a tool like John the Ripper (JTR) to attempt to crack the password using a brute-force or dictionary-based attack.
Here are the steps:
Tools needed:
Step 1: Obtain the Hash Value
Extract the hash value of the secret 5 password from the device's configuration file. The hash value typically starts with $1$m salt$.
Step 2: Prepare the Hash Value for JTR
Format the hash value into a format that JTR can understand:
$1$m salt$hash_value
Step 3: Run JTR
Run JTR with the following command:
john --stdin --format=md5 $1$m salt$hash_value
Step 4: Attempt to Crack the Password
JTR will attempt to crack the password using a brute-force or dictionary-based attack. If the password is weak or a common password, JTR may be able to crack it.
Prevention and Best Practices
To prevent unauthorized access to your Cisco devices and minimize the risk of password decryption, follow these best practices:
Conclusion
Decrypting a Cisco secret 5 password is not a straightforward process due to the one-way hashing algorithm used. While it is possible to attempt to crack the password using brute-force or dictionary-based attacks, these methods are time-consuming and not practical for complex passwords. To minimize the risk of unauthorized access, it is essential to follow best practices for password management and device security. If you need to recover a forgotten password, consider using alternative methods, such as password recovery procedures or resetting the device to its factory settings.
Decrypting Cisco Type 5 Secret Passwords
Cisco devices, such as routers and switches, often use type 5 secret passwords for secure authentication. These passwords are encrypted using a one-way hash function, making it difficult to reverse-engineer the original password. However, there are scenarios where network administrators or security professionals might need to decrypt or recover these passwords for legitimate purposes, such as during a security audit or when dealing with forgotten credentials.
Understanding Type 5 Passwords
Type 5 passwords are encrypted using a MD5 hash, which is considered secure for most purposes. When you set a type 5 password on a Cisco device, it gets hashed and then stored in the configuration file. The hashing process is one-way, meaning it's not feasible to directly decrypt the hashed password to its original form using computational methods.
Decrypting Type 5 Passwords
Unfortunately, due to the nature of the MD5 one-way hash, it's not possible to directly decrypt a type 5 password to reveal the original password. The security of type 5 passwords relies on this one-way hashing, making it computationally infeasible to retrieve the original password from the hash.
However, there are a couple of approaches you can take if you need to access a device with a type 5 password:
Password Recovery: If you have physical access to the device and it's not a production environment, you can perform a password recovery procedure. This usually involves interrupting the boot process, modifying the configuration register, and then recovering the password.
Using a Brute Force Attack or Rainbow Tables: For type 5 passwords, brute force attacks or precomputed tables (rainbow tables) could theoretically be used to find a matching password. However, due to the computational intensity and the fact that type 5 passwords are often sufficiently secure, this approach is usually impractical and not recommended.
Alternative Solutions
Prevention and Best Practices
Conclusion
While it's not feasible to decrypt a Cisco type 5 secret password due to its one-way hashed nature, understanding the security and having legitimate access methods are crucial. Always aim to follow best practices for password management and device security. If you're dealing with a situation where you need to access a device with a forgotten type 5 password, exploring official Cisco documentation or consulting with network security professionals can provide guidance tailored to your specific scenario.
Cisco Type 5 passwords utilize MD5 hashing, a one-way process that cannot be traditionally decrypted but is highly susceptible to cracking due to algorithm weaknesses. Security best practices recommend migrating to Type 8 (SHA-256) or Type 9 (Scrypt) to ensure robust protection for modern hardware. For a detailed breakdown of Cisco password types and security, visit Network-Switch.com. Cisco Password Types: Best Practices
Here’s a concise, informative piece on “Cisco secret 5 password decrypt” — including what it is, why it’s not truly decryption, and how to recover the plaintext.
Let’s review the most common tools found by searching "cisco secret 5 password decrypt":
| Tool Name | Real Function | Effectiveness | |-----------|--------------|---------------| | Cain & Abel (Cisco Type 5 module) | Dictionary/brute-force cracker | Weak passwords only | | John the Ripper (--format=md5crypt) | Cracking | Good, uses wordlists | | Hashcat (-m 500) | GPU-accelerated cracking | Excellent for weak/medium | | Online Cisco Decrypt websites | Lookup tables / rainbow tables | Only for known hashes |
None of these decrypt. All of them guess.
If your password is P@ssw0rd2024!, they will not succeed anytime soon. If your password is cisco, they will return it instantly.
While the story dramatizes the process, here is the breakdown of the actual mechanisms involved:
5 indicates that the password has been hashed using the MD5 algorithm. This is technically a hashing algorithm, not encryption.password 7, you can decrypt it instantly online.passwords technically cannot be decrypted because they use a one-way hashing algorithm, not a reversible encryption. While older "Type 7" passwords can be instantly reversed using simple decryption tools, Type 5 passwords must be "cracked" via brute-force or dictionary attacks. Technical Architecture
Type 5 passwords use an implementation based on the Unix MD5-based password storage system. Cisco Community Understand Cisco IOS Password Encryption
Cisco Type 5 passwords use a one-way MD5 hashing algorithm. This means they cannot be "decrypted" in the traditional sense. Instead, they must be "cracked" by comparing them against a list of known words or using brute force. 🛠️ The Technical Reality One-Way Function : Hashing is a one-way street. Salted Hashes : Cisco uses a "salt" to prevent rainbow table attacks. MD5 Algorithm in the config identifies the MD5 format. No Direct Reversal : No software can simply "undo" the math. 💻 How to Recover the Password
If you have lost access to a device and have the hash from the configuration file, you have three primary options: 1. Online Crackers
Many websites maintain massive databases of pre-computed hashes. : Fast and free for common passwords.
: Security risk; you are sharing your hash with a third party. 2. John the Ripper (JtR) This is the industry-standard tool for password recovery. Use the command: john --format=md5crypt config.txt : Highly effective and runs locally on your machine. 3. Hashcat Uses your GPU (graphics card) for extreme speed. Use Mode 500 for Cisco Type 5 MD5 hashes. : The fastest method available for complex passwords. 🛡️ Best Practices for Security
If you are auditing your network and found Type 5 passwords, they are now considered "weak" by modern standards. Upgrade to Type 8 or 9 : These use SHA-256 or Scrypt. password algorithm-type scrypt in global config. Strong Secret username [name] secret [password] instead of ⚠️ Password Recovery Procedure
If you cannot crack the hash and are locked out of the device, you must perform a physical password recovery: Connect via Console Cable Power cycle the device. Break signal (Ctrl+Break) during boot to enter ROMMON mode. Change the Configuration Register (usually to ) to ignore the startup config.
Reboot, enter privileged mode, and overwrite the old secret. To give you the best advice, could you tell me: locked out of a physical device right now? Is this for a lab environment production network Do you have access to a machine with a dedicated GPU for cracking? I can provide the specific CLI commands for your exact Cisco model if you provide those details.
This report provides a technical overview of Cisco Type 5 (MD5) password security, its vulnerabilities, and the methods used for recovery. Executive Summary
Cisco Type 5 passwords are cryptographic hashes generated using the MD5 (Message-Digest Algorithm 5) with a salt. Unlike Type 7 passwords, which are obfuscated with a weak Vigenère cipher and easily reversible, Type 5 hashes are one-way. They cannot be "decrypted" in the traditional sense; instead, they are compromised through brute-force or dictionary attacks. 1. Technical Specification Command: enable secret Algorithm: MD5 (Message-Digest Algorithm 5). Format: $1$ $1$: Indicates Type 5 (MD5). Cisco "Type 5" passwords cannot be directly decrypted
Decryption requires a key to return a ciphertext to plaintext. MD5 is a hashing function, designed to be a one-way mathematical operation. To "recover" a Type 5 password, an attacker must: Guess a possible plaintext password. Apply the same MD5 algorithm and salt.
Compare the resulting hash to the one stored in the Cisco configuration. If they match, the guess is correct. 3. Vulnerabilities and Exploitation
While more secure than Type 0 (plaintext) or Type 7, Type 5 is now considered legacy security due to modern computing power.
Brute-Force: High-end GPUs can calculate millions of MD5 hashes per second, making short or simple passwords recoverable in minutes.
Dictionary Attacks: Using pre-compiled lists of common passwords (like the "RockYou" list) is the most effective way to crack these hashes.
Offline Cracking: Tools like Hashcat or John the Ripper are standard for auditing these hashes once a configuration file is obtained. 4. Recommended Security Posture
Modern Cisco IOS versions support stronger hashing algorithms that are significantly more resistant to brute-force attacks. Password Type Security Level Recommendation Type 7 Critical Vulnerability Do not use; easily reversed. Type 5 Legacy Replace where possible. Type 8 Strong Use for modern hardware. Type 9 Strongest Best practice; memory-hard to prevent GPU cracking. 5. Recovery Procedure
If you have lost access to a device and cannot crack the hash, you must follow the Cisco Password Recovery Procedure. This involves: Connecting via Console cable.
Interrupting the boot sequence (Break signal) to enter ROMMON mode.
Changing the configuration register (usually to 0x2142) to ignore the startup configuration.
Rebooting, manually loading the config, and setting a new secret. How to ENCRYPT Password on Cisco Switch - EASY LIKE ABC
Decrypting Cisco Type 5 Secret Passwords: A Deep Dive
Cisco devices, widely used in networking for their reliability and feature-rich capabilities, employ various methods to secure access, including the use of secret passwords. One such method is the Type 5 encryption for password storage. Introduced to enhance security, Type 5 passwords are encrypted using a more secure algorithm compared to its predecessors. However, the very nature of encryption and decryption raises questions among network administrators and cybersecurity professionals about how these passwords can be decrypted or recovered. This essay explores the concept of Cisco Type 5 secret passwords, the encryption method used, and the feasibility of decrypting such passwords.
Understanding Cisco Type 5 Secret Passwords
Cisco devices use a variety of password types to secure access. Type 5 passwords are specifically used for enable secret passwords, which are crucial for securing privileged EXEC mode access. Unlike Type 7 passwords, which are easily decryptable, Type 5 passwords are hashed using a stronger algorithm, often compared to MD5 (Message-Digest Algorithm 5), making them significantly more challenging to decrypt.
Encryption Method
The Type 5 encryption algorithm is similar to MD5, a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value. When a password is set as a Type 5 secret, it undergoes a hashing process. The hashed output is then stored on the device. Due to the nature of hashing, which is a one-way process, it is computationally infeasible to recreate the original password from its hashed version.
Decrypting Type 5 Passwords: The Reality Check
The essence of hashing, particularly with algorithms like MD5, lies in their design to be non-invertible. This means that while it's easy to generate a hash from a given input (the password), it's virtually impossible to compute the original input from the hash output. This characteristic is what makes Type 5 passwords more secure.
However, network administrators often seek ways to recover or decrypt passwords for operational or security auditing purposes. The harsh reality is that, unlike Type 7 passwords which can be easily decrypted, Type 5 passwords, due to their hashing, cannot be directly decrypted.
Brute Force and Rainbow Tables: Potential Approaches
While direct decryption of Type 5 passwords is not feasible, there are indirect methods that could potentially uncover the password. One such method is a brute-force attack, where an attacker attempts to try all possible combinations of characters until the correct password is found. Another method involves the use of precomputed tables known as rainbow tables, which contain hash values for common passwords.
However, both methods have significant drawbacks. Brute-force attacks are computationally intensive and can take a considerable amount of time, even with powerful hardware. Rainbow tables, on the other hand, are limited by the number of passwords they can store and may not cover complex or unique passwords.
Conclusion
The security provided by Cisco's Type 5 secret passwords is fundamentally based on the strengths of their hashing algorithm. While it's not possible to "decrypt" these passwords in the traditional sense, understanding their operational and security implications is crucial for network administrators and cybersecurity professionals.
Best practices include using strong, unique passwords; regularly updating and changing passwords; and implementing additional security measures such as two-factor authentication. In cases where password recovery is necessary, focusing on legitimate methods provided by Cisco or resetting passwords (which would involve loss of current configuration) can be considered.
The security landscape continues to evolve, and with it, so do password cracking techniques. However, the foundational security provided by hashing algorithms like that used in Type 5 passwords underscores the importance of proactive and robust cybersecurity practices.
class CiscoSecret5Decryptor: """ WARNING: Cisco Type 5 is NOT reversible. This class simulates "decryption" by using a precomputed rainbow table or cached results. """
def __init__(self):
# Demo cache (real tool would use large DB)
self.demo_cache =
"$1$cisco$SJ5x7k9LxPq9xM3lq9xM/.": "cisco123",
"$1$admin$3XJ5k9LxPq9xM3lq9xM/.": "admin123",
"$1$secret$VJ5x7k9LxPq9xM3lq9xM/.": "secretpass",
def decrypt(self, hash_string):
"""Lookup hash in precomputed cache."""
return self.demo_cache.get(hash_string, "Not found in rainbow table")
def main(): parser = argparse.ArgumentParser(description="Cisco Type 5 Password Analyzer (Educational)") parser.add_argument("hash", help="Cisco Type 5 hash ($1$salt$hash)") parser.add_argument("-w", "--wordlist", default="/usr/share/wordlists/rockyou.txt", help="Wordlist path") parser.add_argument("-b", "--bruteforce", action="store_true", help="Brute-force (short passwords only)") parser.add_argument("-m", "--max-length", type=int, default=5, help="Max brute-force length")
args = parser.parse_args()
print("=== Cisco Type 5 Password Analyzer ===")
print(f"Target hash: args.hash")
cracker = CiscoType5Cracker(args.hash, args.wordlist)
print(f"[+] Salt: cracker.hash_info['salt']")
print(f"[+] Hash: cracker.hash_info['hash']")
if args.bruteforce:
print(f"[*] Starting brute-force (length ≤ args.max_length)...")
result = cracker.crack_bruteforce(max_length=args.max_length)
else:
print("[*] Starting dictionary attack...")
result = cracker.crack_from_file()
if result:
print(f"\n✅ PASSWORD FOUND: result")
print(f"⚠️ Cisco Type 5 is weak — migrate to Type 8 (PBKDF2) or Type 9 (SCRYPT).")
else:
print("\n❌ Password not found in wordlist.")
print("Consider larger wordlist or brute-force (slow).")
# Mock "decrypt" demo
print("\n--- Mock Decryptor (Rainbow Table Demo) ---")
mock = CiscoSecret5Decryptor()
mock_result = mock.decrypt(args.hash)
print(f"Decrypt attempt: mock_result")
if name == "main": # Example usage: # python cisco5_crack.py '$1$cisco$SJ5x7k9LxPq9xM3lq9xM/.' main()
If you are looking for a tool to "decrypt" a Cisco Type 5 password, here is the short answer: You cannot decrypt it.
There is no secret key, no backdoor algorithm, and no mathematical formula that turns a Type 5 hash back into the original password. This is because the Cisco Type 5 password is not encrypted—it is hashed.
Understanding the difference between encryption and hashing is the key to understanding why "decryption" tools don't work, but cracking tools do.
Cisco Secret 5 passwords are a type of password encryption used in Cisco IOS devices. When you configure a password with the enable secret 5 command, the password is encrypted using a one-way hashing algorithm, specifically the MD5 (Message-Digest Algorithm 5) algorithm. This encryption is considered more secure than the older Type 7 (Vigenère cipher) encryption, as it's more resistant to brute-force attacks.
No—not in the classical sense.
Type 5 uses a cryptographic hash, not encryption. Hashing is a one-way street: you go from password → hash, but you can’t go back. Type 0 : Unencrypted password Type 5 :
Think of it like grinding beef into hamburger. You can’t turn the hamburger back into a steak.
