Htpasswd Generator

Apache/Nginx Basic Auth Secure Hash
Anish Nath
Generate htpasswd
Credentials
Algorithm
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Verify Existing Hash
Generated .htpasswd Entry

htpasswd entry will appear here

Enter username and password to generate
htpasswd Commands
Generate bcrypt hash
$ htpasswd -B -c .htpasswd admin
Generate SHA-512 hash (OpenSSL)
$ openssl passwd -6 -salt $(openssl rand -base64 8)
Generate APR-MD5 hash
$ openssl passwd -apr1
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Understanding htpasswd
What is htpasswd?

The htpasswd utility creates and updates flat-files storing usernames and passwords for basic HTTP authentication in Apache and Nginx web servers.

Modular Crypt Format

htpasswd uses the Modular Crypt Format (MCF) which identifies the algorithm by a prefix:

Prefix Algorithm Security Notes
$2y$ / $2a$ bcrypt Excellent Recommended. Adjustable cost factor.
$6$ SHA-512 Very Good 5000 rounds default. Good alternative.
$5$ SHA-256 Good 5000 rounds default.
$apr1$ APR-MD5 Fair Apache-specific MD5. Legacy support.
{SHA} SHA-1 Weak Unsalted. Not recommended.
(none) crypt(3) Weak DES-based. 8 char max. Avoid.
Nginx Configuration
location /protected {
    auth_basic "Restricted Area";
    auth_basic_user_file /etc/nginx/.htpasswd;
}
Apache Configuration
<Directory "/var/www/protected">
    AuthType Basic
    AuthName "Restricted Area"
    AuthUserFile /etc/apache2/.htpasswd
    Require valid-user
</Directory>
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