Package org.opends.server.extensions
Class CryptPasswordStorageScheme
- java.lang.Object
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- org.opends.server.api.PasswordStorageScheme<CryptPasswordStorageSchemeCfg>
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- org.opends.server.extensions.CryptPasswordStorageScheme
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- All Implemented Interfaces:
ConfigurationChangeListener<CryptPasswordStorageSchemeCfg>
public class CryptPasswordStorageScheme extends PasswordStorageScheme<CryptPasswordStorageSchemeCfg> implements ConfigurationChangeListener<CryptPasswordStorageSchemeCfg>
This class defines a Directory Server password storage scheme based on the UNIX Crypt algorithm. This is a legacy one-way digest algorithm intended only for situations where passwords have not yet been updated to modern hashes such as SHA-1 and friends. This implementation does perform weak salting, which means that it is more vulnerable to dictionary attacks than schemes with larger salts.
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Constructor Summary
Constructors Constructor Description CryptPasswordStorageScheme()Creates a new instance of this password storage scheme.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ConfigChangeResultapplyConfigurationChange(CryptPasswordStorageSchemeCfg configuration)Applies the configuration changes to this change listener.booleanauthPasswordMatches(ByteSequence plaintextPassword, String authInfo, String authValue)Indicates whether the provided plaintext password matches the encoded password using the authentication password syntax with the given authInfo and authValue components.ByteStringencodeAuthPassword(ByteSequence plaintext)Encodes the provided plaintext password for this storage scheme using the authentication password syntax defined in RFC 3112.ByteStringencodePassword(ByteSequence plaintext)Encodes the provided plaintext password for this storage scheme, without the name of the associated scheme.ByteStringencodePasswordWithScheme(ByteSequence plaintext)Encodes the provided plaintext password for this storage scheme, prepending the name of the scheme in curly braces.ByteStringgetAuthPasswordPlaintextValue(String authInfo, String authValue)Retrieves the original plaintext value for the provided password stored in the authPassword syntax.ByteStringgetPlaintextValue(ByteSequence storedPassword)Retrieves the original plaintext value for the provided stored password.StringgetStorageSchemeName()Retrieves the name of the password storage scheme provided by this handler.voidinitializePasswordStorageScheme(CryptPasswordStorageSchemeCfg configuration)Initializes this password storage scheme handler based on the information in the provided configuration entry.booleanisConfigurationAcceptable(PasswordStorageSchemeCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)Indicates whether the provided configuration is acceptable for this password storage scheme.booleanisConfigurationChangeAcceptable(CryptPasswordStorageSchemeCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)Indicates whether the proposed change to the configuration is acceptable to this change listener.booleanisReversible()Indicates whether this storage scheme is reversible (i.e., it is possible to obtain the original plaintext value from the stored password).booleanisStorageSchemeSecure()Indicates whether this password storage scheme should be considered "secure".booleanpasswordMatches(ByteSequence plaintextPassword, ByteSequence storedPassword)Indicates whether the provided plaintext password included in a bind request matches the given stored value.booleansupportsAuthPasswordSyntax()Indicates whether this password storage scheme supports the ability to interact with values using the authentication password syntax defined in RFC 3112.-
Methods inherited from class org.opends.server.api.PasswordStorageScheme
finalizePasswordStorageScheme, getAuthPasswordSchemeName
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Method Detail
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initializePasswordStorageScheme
public void initializePasswordStorageScheme(CryptPasswordStorageSchemeCfg configuration) throws ConfigException, InitializationException
Description copied from class:PasswordStorageSchemeInitializes this password storage scheme handler based on the information in the provided configuration entry. It should also register itself with the Directory Server for the particular storage scheme that it will manage.- Specified by:
initializePasswordStorageSchemein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
configuration- The configuration entry that contains the information to use to initialize this password storage scheme handler.- Throws:
ConfigException- If an unrecoverable problem arises in the process of performing the initialization.InitializationException- If a problem occurs during initialization that is not related to the server configuration.
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getStorageSchemeName
public String getStorageSchemeName()
Description copied from class:PasswordStorageSchemeRetrieves the name of the password storage scheme provided by this handler.- Specified by:
getStorageSchemeNamein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Returns:
- The name of the password storage scheme provided by this handler.
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encodePassword
public ByteString encodePassword(ByteSequence plaintext) throws DirectoryException
Description copied from class:PasswordStorageSchemeEncodes the provided plaintext password for this storage scheme, without the name of the associated scheme. Note that the provided plaintext password should not be altered in any way.- Specified by:
encodePasswordin classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
plaintext- The plaintext version of the password.- Returns:
- The password that has been encoded using this storage scheme.
- Throws:
DirectoryException- If a problem occurs while processing.
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encodePasswordWithScheme
public ByteString encodePasswordWithScheme(ByteSequence plaintext) throws DirectoryException
Description copied from class:PasswordStorageSchemeEncodes the provided plaintext password for this storage scheme, prepending the name of the scheme in curly braces. Note that the provided plaintext password should not be altered in any way.- Specified by:
encodePasswordWithSchemein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
plaintext- The plaintext version of the password.- Returns:
- The encoded password, including the name of the storage scheme.
- Throws:
DirectoryException- If a problem occurs while processing.
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passwordMatches
public boolean passwordMatches(ByteSequence plaintextPassword, ByteSequence storedPassword)
Description copied from class:PasswordStorageSchemeIndicates whether the provided plaintext password included in a bind request matches the given stored value. The provided stored value should not include the scheme name in curly braces.- Specified by:
passwordMatchesin classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
plaintextPassword- The plaintext password provided by the user as part of a simple bind attempt.storedPassword- The stored password to compare against the provided plaintext password.- Returns:
trueif the provided plaintext password matches the provided stored password, orfalseif not.
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supportsAuthPasswordSyntax
public boolean supportsAuthPasswordSyntax()
Description copied from class:PasswordStorageSchemeIndicates whether this password storage scheme supports the ability to interact with values using the authentication password syntax defined in RFC 3112.- Specified by:
supportsAuthPasswordSyntaxin classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Returns:
trueif this password storage scheme supports the ability to interact with values using the authentication password syntax, orfalseif it does not.
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encodeAuthPassword
public ByteString encodeAuthPassword(ByteSequence plaintext) throws DirectoryException
Description copied from class:PasswordStorageSchemeEncodes the provided plaintext password for this storage scheme using the authentication password syntax defined in RFC 3112. Note that the provided plaintext password should not be altered in any way.- Specified by:
encodeAuthPasswordin classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
plaintext- The plaintext version of the password.- Returns:
- The password that has been encoded in the authentication password syntax.
- Throws:
DirectoryException- If a problem occurs while processing of if this storage scheme does not support the authentication password syntax.
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authPasswordMatches
public boolean authPasswordMatches(ByteSequence plaintextPassword, String authInfo, String authValue)
Description copied from class:PasswordStorageSchemeIndicates whether the provided plaintext password matches the encoded password using the authentication password syntax with the given authInfo and authValue components.- Specified by:
authPasswordMatchesin classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
plaintextPassword- The plaintext password provided by the user.authInfo- The authInfo component of the password encoded in the authentication password syntax.authValue- The authValue component of the password encoded in the authentication password syntax.- Returns:
trueif the provided plaintext password matches the encoded password according to the authentication password info syntax, orfalseif it does not or this storage scheme does not support the authentication password syntax.
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isReversible
public boolean isReversible()
Description copied from class:PasswordStorageSchemeIndicates whether this storage scheme is reversible (i.e., it is possible to obtain the original plaintext value from the stored password).- Specified by:
isReversiblein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Returns:
trueif this is a reversible password storage scheme, orfalseif it is not.
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getPlaintextValue
public ByteString getPlaintextValue(ByteSequence storedPassword) throws DirectoryException
Description copied from class:PasswordStorageSchemeRetrieves the original plaintext value for the provided stored password. Note that this should only be called ifisReversiblereturnstrue.- Specified by:
getPlaintextValuein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
storedPassword- The password for which to obtain the plaintext value. It should not include the scheme name in curly braces.- Returns:
- The plaintext value for the provided stored password.
- Throws:
DirectoryException- If it is not possible to obtain the plaintext value for the provided stored password.
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getAuthPasswordPlaintextValue
public ByteString getAuthPasswordPlaintextValue(String authInfo, String authValue) throws DirectoryException
Description copied from class:PasswordStorageSchemeRetrieves the original plaintext value for the provided password stored in the authPassword syntax. Note that this should only be called ifisReversiblereturnstrue.- Specified by:
getAuthPasswordPlaintextValuein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
authInfo- The authInfo component of the password encoded in the authentication password syntax.authValue- The authValue component of the password encoded in the authentication password syntax.- Returns:
- The plaintext value for the provided stored password.
- Throws:
DirectoryException- If it is not possible to obtain the plaintext value for the provided stored password, or if this storage scheme does not support the authPassword syntax..
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isStorageSchemeSecure
public boolean isStorageSchemeSecure()
Description copied from class:PasswordStorageSchemeIndicates whether this password storage scheme should be considered "secure". If the encoding used for this scheme does not obscure the value at all, or if it uses a method that is trivial to reverse (e.g., base64), then it should not be considered secure.
This may be used to determine whether a password may be included in a set of search results, including the possibility of overriding access controls in the case that access controls would allow the password to be returned but the password is considered too insecure to reveal.- Specified by:
isStorageSchemeSecurein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Returns:
falseif it may be trivial to discover the original plain-text password from the encoded form, ortrueif the scheme offers sufficient protection that revealing the encoded password will not easily reveal the corresponding plain-text value.
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isConfigurationAcceptable
public boolean isConfigurationAcceptable(PasswordStorageSchemeCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)
Description copied from class:PasswordStorageSchemeIndicates whether the provided configuration is acceptable for this password storage scheme. It should be possible to call this method on an uninitialized password storage scheme instance in order to determine whether the password storage scheme would be able to use the provided configuration.
Note that implementations which use a subclass of the provided configuration class will likely need to cast the configuration to the appropriate subclass type.- Overrides:
isConfigurationAcceptablein classPasswordStorageScheme<CryptPasswordStorageSchemeCfg>- Parameters:
configuration- The password storage scheme configuration for which to make the determination.unacceptableReasons- A list that may be used to hold the reasons that the provided configuration is not acceptable.- Returns:
trueif the provided configuration is acceptable for this password storage scheme, orfalseif not.
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isConfigurationChangeAcceptable
public boolean isConfigurationChangeAcceptable(CryptPasswordStorageSchemeCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)
Description copied from interface:ConfigurationChangeListenerIndicates whether the proposed change to the configuration is acceptable to this change listener.- Specified by:
isConfigurationChangeAcceptablein interfaceConfigurationChangeListener<CryptPasswordStorageSchemeCfg>- Parameters:
configuration- The new configuration containing the changes.unacceptableReasons- A list that can be used to hold messages about why the provided configuration is not acceptable.- Returns:
- Returns
trueif the proposed change is acceptable, orfalseif it is not.
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applyConfigurationChange
public ConfigChangeResult applyConfigurationChange(CryptPasswordStorageSchemeCfg configuration)
Description copied from interface:ConfigurationChangeListenerApplies the configuration changes to this change listener.- Specified by:
applyConfigurationChangein interfaceConfigurationChangeListener<CryptPasswordStorageSchemeCfg>- Parameters:
configuration- The new configuration containing the changes.- Returns:
- Returns information about the result of changing the configuration.
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