What type of hash is $1$?

Similarly, passwords that start with "$6$" signify they have been hashed with the Linux SHA512 algorithm. SHA512 offers an even higher degree of encryption compared to SHA256, further enhancing the security of stored passwords.

Passwords that commence with the sequence "$1$" are automatically recognized as being encrypted utilizing the Linux MD5 password hashing algorithm. This indicates a specific hashing method employed by the Linux system for securing passwords.

For heightened security, Linux also offers the SHA256 and SHA512 crypt password hashing mechanisms. These algorithms are considered more secure than MD5, providing a stronger level of encryption for sensitive credentials.

Passwords prefixed with "$5$" are distinctly identified as utilizing the Linux SHA256 hashing technique. This advanced hashing algorithm is designed to make it significantly more difficult for unauthorized individuals to crack or guess passwords.

These hashing practices are crucial in ensuring that sensitive user information, particularly passwords, remains protected against unauthorized access. By implementing these robust hashing algorithms, Linux systems help safeguard against password theft and unauthorized entry.