Package org.apache.shiro.authc.credential

Class DefaultPasswordService

  • All Implemented Interfaces:
    HashingPasswordService, PasswordService
    public class DefaultPasswordService
extends Object
implements HashingPasswordService
    Default implementation of the PasswordService interface that relies on an internal HashService, HashFormat, and HashFormatFactory to function:

    Hashing Passwords

    Comparing Passwords

    All hashing operations are performed by the internal hashService. After the hash is computed, it is formatted into a String value via the internal hashFormat.
    Since:
    1.2

    • Constructor Detail

      • DefaultPasswordService

        public DefaultPasswordService()

    • Method Detail

      • encryptPassword

        public String encryptPassword(Object plaintext)
        Description copied from interface: PasswordService
        Converts the specified plaintext password (usually acquired from your application's 'new user' or 'password reset' workflow) into a formatted string safe for storage. The returned string can be safely saved with the corresponding user account record (e.g. as a 'password' attribute).

        It is expected that the String returned from this method will be presented to the passwordsMatch(plaintext,encrypted) method when performing a password comparison check.

        Usage

        The input argument type can be any 'byte backed' Object - almost always either a String or character array representing passwords (character arrays are often a safer way to represent passwords as they can be cleared/nulled-out after use. Any argument type supported by ByteSource.Util.isCompatible(Object) is valid.

        For example: 
         String rawPassword = ...
 String encryptedValue = passwordService.encryptPassword(rawPassword);
        or, identically: 
         char[] rawPasswordChars = ...
 String encryptedValue = passwordService.encryptPassword(rawPasswordChars);

        The resulting encryptedValue should be stored with the account to be retrieved later during a login attempt. For example: 
         String encryptedValue = passwordService.encryptPassword(rawPassword);
 ...
 userAccount.setPassword(encryptedValue);
 userAccount.save(); //create or update to your data store
        Specified by:
        encryptPassword in interface PasswordService
        Parameters:
        plaintext - the raw password as 'byte-backed' object (String, character array, ByteSource, etc) usually acquired from your application's 'new user' or 'password reset' workflow.
        Returns:
        the encrypted password, formatted for storage.
        See Also:
        ByteSource.Util.isCompatible(Object)

      • hashPassword

        public org.apache.shiro.crypto.hash.Hash hashPassword(Object plaintext)
        Description copied from interface: HashingPasswordService
        Hashes the specified plaintext password using internal hashing configuration settings pertinent to password hashing.

        Note that this method is only likely to be used in more complex environments that wish to format and/or save the returned Hash object in a custom manner. Most applications will find the encryptPassword method suitable enough for safety and ease-of-use.

        Usage

        The input argument type can be any 'byte backed' Object - almost always either a String or character array representing passwords (character arrays are often a safer way to represent passwords as they can be cleared/nulled-out after use. Any argument type supported by ByteSource.Util.isCompatible(Object) is valid.

        Regardless of your choice of using Strings or character arrays to represent submitted passwords, you can wrap either as a ByteSource by using ByteSource.Util, for example, when the passwords are captured as Strings: 
         ByteSource passwordBytes = ByteSource.Util.bytes(submittedPasswordString);
 Hash hashedPassword = hashingPasswordService.hashPassword(passwordBytes);
        or, identically, when captured as a character array: 
         ByteSource passwordBytes = ByteSource.Util.bytes(submittedPasswordCharacterArray);
 Hash hashedPassword = hashingPasswordService.hashPassword(passwordBytes);
        Specified by:
        hashPassword in interface HashingPasswordService
        Parameters:
        plaintext - the raw password as 'byte-backed' object (String, character array, ByteSource, etc) usually acquired from your application's 'new user' or 'password reset' workflow.
        Returns:
        the hashed password.
        See Also:
        ByteSource.Util.isCompatible(Object), PasswordService.encryptPassword(Object)

      • passwordsMatch

        public boolean passwordsMatch(Object plaintext,
                              org.apache.shiro.crypto.hash.Hash saved)
        Description copied from interface: HashingPasswordService
        Returns true if the submittedPlaintext password matches the existing savedPasswordHash, false otherwise. Note that this method is only likely to be used in more complex environments that save hashes in a custom manner. Most applications will find the passwordsMatch(plaintext,string) method sufficient if encrypting passwords as Strings.

        Usage

        The submittedPlaintext argument type can be any 'byte backed' Object - almost always either a String or character array representing passwords (character arrays are often a safer way to represent passwords as they can be cleared/nulled-out after use. Any argument type supported by ByteSource.Util.isCompatible(Object) is valid.
        Specified by:
        passwordsMatch in interface HashingPasswordService
        Parameters:
        plaintext - a raw/plaintext password submitted by an end user/Subject.
        saved - the previously hashed password known to be associated with an account. This value is expected to have been previously generated from the hashPassword method (typically when the account is created or the account's password is reset).
        Returns:
        true if the plaintext password matches the existing savedPasswordHash, false otherwise.

      • checkHashFormatDurability

        protected void checkHashFormatDurability()

      • createHashRequest

        protected org.apache.shiro.crypto.hash.HashRequest createHashRequest(org.apache.shiro.util.ByteSource plaintext)

      • createByteSource

        protected org.apache.shiro.util.ByteSource createByteSource(Object o)

      • passwordsMatch

        public boolean passwordsMatch(Object submittedPlaintext,
                              String saved)
        Description copied from interface: PasswordService
        Returns true if the submittedPlaintext password matches the existing saved password, false otherwise.

        Usage

        The submittedPlaintext argument type can be any 'byte backed' Object - almost always either a String or character array representing passwords (character arrays are often a safer way to represent passwords as they can be cleared/nulled-out after use. Any argument type supported by ByteSource.Util.isCompatible(Object) is valid.

        For example: 
         String submittedPassword = ...
 passwordService.passwordsMatch(submittedPassword, encryptedPassword);
        or similarly: 
         char[] submittedPasswordCharacters = ...
 passwordService.passwordsMatch(submittedPasswordCharacters, encryptedPassword);
        Specified by:
        passwordsMatch in interface PasswordService
        Parameters:
        submittedPlaintext - a raw/plaintext password submitted by an end user/Subject.
        saved - the previously encrypted password known to be associated with an account. This value is expected to have been previously generated from the encryptPassword method (typically when the account is created or the account's password is reset).
        Returns:
        true if the submittedPlaintext password matches the existing saved password, false otherwise.
        See Also:
        ByteSource.Util.isCompatible(Object)

      • buildHashRequest

        protected org.apache.shiro.crypto.hash.HashRequest buildHashRequest(org.apache.shiro.util.ByteSource plaintext,
                                                                    org.apache.shiro.crypto.hash.Hash saved)

      • getHashService

        public org.apache.shiro.crypto.hash.HashService getHashService()

      • setHashService

        public void setHashService(org.apache.shiro.crypto.hash.HashService hashService)

      • getHashFormat

        public org.apache.shiro.crypto.hash.format.HashFormat getHashFormat()

      • setHashFormat

        public void setHashFormat(org.apache.shiro.crypto.hash.format.HashFormat hashFormat)

      • getHashFormatFactory

        public org.apache.shiro.crypto.hash.format.HashFormatFactory getHashFormatFactory()

      • setHashFormatFactory

        public void setHashFormatFactory(org.apache.shiro.crypto.hash.format.HashFormatFactory hashFormatFactory)