Package org.bouncycastle.crypto.generators

Class OpenBSDBCrypt

  • public class OpenBSDBCrypt
extends java.lang.Object
    Password hashing scheme BCrypt, designed by Niels Provos and David Mazières, using the String format and the Base64 encoding of the reference implementation on OpenBSD

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean checkPassword​(java.lang.String bcryptString, byte[] password)
      Checks if a password corresponds to a 60 character Bcrypt String
      static boolean checkPassword​(java.lang.String bcryptString, char[] password)
      Checks if a password corresponds to a 60 character Bcrypt String
      static java.lang.String generate​(byte[] password, byte[] salt, int cost)
      Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$' using version '2y'.
      static java.lang.String generate​(char[] password, byte[] salt, int cost)
      Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$' using version '2y'.
      static java.lang.String generate​(java.lang.String version, byte[] password, byte[] salt, int cost)
      Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'
      static java.lang.String generate​(java.lang.String version, char[] password, byte[] salt, int cost)
      Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • generate

        public static java.lang.String generate​(char[] password,
                                        byte[] salt,
                                        int cost)
        Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$' using version '2y'.
        Parameters:
        cost - the cost factor, treated as an exponent of 2
        salt - a 16 byte salt
        password - the password
        Returns:
        a 60 character Bcrypt String

      • generate

        public static java.lang.String generate​(byte[] password,
                                        byte[] salt,
                                        int cost)
        Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$' using version '2y'.
        Parameters:
        cost - the cost factor, treated as an exponent of 2
        salt - a 16 byte salt
        password - the password
        Returns:
        a 60 character Bcrypt String

      • generate

        public static java.lang.String generate​(java.lang.String version,
                                        char[] password,
                                        byte[] salt,
                                        int cost)
        Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'
        Parameters:
        version - the version, may be 2b, 2y or 2a. (2a is not backwards compatible.)
        cost - the cost factor, treated as an exponent of 2
        salt - a 16 byte salt
        password - the password
        Returns:
        a 60 character Bcrypt String

      • generate

        public static java.lang.String generate​(java.lang.String version,
                                        byte[] password,
                                        byte[] salt,
                                        int cost)
        Creates a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'
        Parameters:
        version - the version, may be 2b, 2y or 2a. (2a is not backwards compatible.)
        cost - the cost factor, treated as an exponent of 2
        salt - a 16 byte salt
        password - the password already encoded as a byte array.
        Returns:
        a 60 character Bcrypt String

      • checkPassword

        public static boolean checkPassword​(java.lang.String bcryptString,
                                    char[] password)
        Checks if a password corresponds to a 60 character Bcrypt String
        Parameters:
        bcryptString - a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'
        password - the password as an array of chars
        Returns:
        true if the password corresponds to the Bcrypt String, otherwise false

      • checkPassword

        public static boolean checkPassword​(java.lang.String bcryptString,
                                    byte[] password)
        Checks if a password corresponds to a 60 character Bcrypt String
        Parameters:
        bcryptString - a 60 character Bcrypt String, including version, cost factor, salt and hash, separated by '$'
        password - the password as an array of bytes
        Returns:
        true if the password corresponds to the Bcrypt String, otherwise false