Package org.opends.server.extensions
Class PBKDF2HmacSHA512PasswordStorageScheme
- java.lang.Object
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- org.opends.server.api.PasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
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- org.opends.server.extensions.PBKDF2HmacSHA512PasswordStorageScheme
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- All Implemented Interfaces:
ConfigurationChangeListener<Pbkdf2PasswordStorageSchemeCfg>
public final class PBKDF2HmacSHA512PasswordStorageScheme extends PasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
This class defines a Directory Server password storage scheme based on the PBKDF2 algorithm defined in RFC 2898, using HMAC-SHA512 pseudorandom function.
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Constructor Summary
Constructors Constructor Description PBKDF2HmacSHA512PasswordStorageScheme()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description ConfigChangeResult
applyConfigurationChange(Pbkdf2PasswordStorageSchemeCfg configuration)
Applies the configuration changes to this change listener.boolean
authPasswordMatches(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.ByteString
encodeAuthPassword(ByteSequence plaintext)
Encodes the provided plaintext password for this storage scheme using the authentication password syntax defined in RFC 3112.static String
encodeOffline(byte[] passwordBytes)
Generates an encoded password string from the given clear-text password.ByteString
encodePassword(ByteSequence plaintext)
Encodes the provided plaintext password for this storage scheme, without the name of the associated scheme.void
finalizePasswordStorageScheme()
Performs any necessary finalization that might be required when this password storage scheme is no longer needed (e.g., the scheme is disabled or the server is shutting down).String
getAuthPasswordSchemeName()
Retrieves the scheme name that should be used with this password storage scheme when it is used in the context of the authentication password syntax.String
getStorageSchemeName()
Retrieves the name of the password storage scheme provided by this handler.void
initializePasswordStorageScheme(Pbkdf2PasswordStorageSchemeCfg config, ServerContext serverContext)
Initializes this password storage scheme handler based on the information in the provided configuration entry.boolean
isConfigurationChangeAcceptable(Pbkdf2PasswordStorageSchemeCfg configuration, List<LocalizableMessage> unacceptableReasons)
Indicates whether the proposed change to the configuration is acceptable to this change listener.boolean
isRehashNeeded(ByteSequence storedPassword)
Indicates whether the encoded password needs to be rehashed because the password storage scheme configuration changed.boolean
isStorageSchemeSecure()
Indicates whether this password storage scheme should be considered "secure".boolean
passwordMatches(ByteSequence plaintextPassword, ByteSequence storedPassword)
Indicates whether the provided plaintext password included in a bind request matches the given stored value.boolean
supportsAuthPasswordSyntax()
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
destroySilently, encodePasswordWithScheme, getAuthPasswordPlaintextValue, getPlaintextValue, isConfigurationAcceptable, isReversible
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Method Detail
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getStorageSchemeName
public String getStorageSchemeName()
Description copied from class:PasswordStorageScheme
Retrieves the name of the password storage scheme provided by this handler.- Returns:
- The name of the password storage scheme provided by this handler.
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getAuthPasswordSchemeName
public String getAuthPasswordSchemeName()
Description copied from class:PasswordStorageScheme
Retrieves the scheme name that should be used with this password storage scheme when it is used in the context of the authentication password syntax. This default implementation will return the same value as thegetStorageSchemeName
method.- Returns:
- The scheme name that should be used with this password storage scheme when it is used in the context of the authentication password syntax.
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encodeOffline
public static String encodeOffline(byte[] passwordBytes) throws LdapException
Generates an encoded password string from the given clear-text password. This method is primarily intended for use when it is necessary to generate a password with the server offline (e.g., when setting the initial root user password).- Parameters:
passwordBytes
- The bytes that make up the clear-text password.- Returns:
- The encoded password string, including the scheme name in curly braces.
- Throws:
LdapException
- If a problem occurs during processing.
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initializePasswordStorageScheme
public void initializePasswordStorageScheme(Pbkdf2PasswordStorageSchemeCfg config, ServerContext serverContext) throws InitializationException
Description copied from class:PasswordStorageScheme
Initializes 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:
initializePasswordStorageScheme
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Parameters:
config
- The configuration entry that contains the information to use to initialize this password storage scheme handler.serverContext
- The server context- Throws:
InitializationException
- If a problem occurs during initialization that is not related to the server configuration.
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encodePassword
public ByteString encodePassword(ByteSequence plaintext) throws LdapException
Description copied from class:PasswordStorageScheme
Encodes 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:
encodePassword
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Parameters:
plaintext
- The plaintext version of the password.- Returns:
- The password that has been encoded using this storage scheme.
- Throws:
LdapException
- If a problem occurs while processing.
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passwordMatches
public boolean passwordMatches(ByteSequence plaintextPassword, ByteSequence storedPassword)
Description copied from class:PasswordStorageScheme
Indicates 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:
passwordMatches
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- 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:
true
if the provided plaintext password matches the provided stored password, orfalse
if not.
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supportsAuthPasswordSyntax
public boolean supportsAuthPasswordSyntax()
Description copied from class:PasswordStorageScheme
Indicates whether this password storage scheme supports the ability to interact with values using the authentication password syntax defined in RFC 3112.- Overrides:
supportsAuthPasswordSyntax
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Returns:
true
if this password storage scheme supports the ability to interact with values using the authentication password syntax, orfalse
if it does not.
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isConfigurationChangeAcceptable
public boolean isConfigurationChangeAcceptable(Pbkdf2PasswordStorageSchemeCfg configuration, List<LocalizableMessage> unacceptableReasons)
Description copied from interface:ConfigurationChangeListener
Indicates whether the proposed change to the configuration is acceptable to this change listener.- Specified by:
isConfigurationChangeAcceptable
in interfaceConfigurationChangeListener<Pbkdf2PasswordStorageSchemeCfg>
- 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
true
if the proposed change is acceptable, orfalse
if it is not.
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applyConfigurationChange
public ConfigChangeResult applyConfigurationChange(Pbkdf2PasswordStorageSchemeCfg configuration)
Description copied from interface:ConfigurationChangeListener
Applies the configuration changes to this change listener.- Specified by:
applyConfigurationChange
in interfaceConfigurationChangeListener<Pbkdf2PasswordStorageSchemeCfg>
- Parameters:
configuration
- The new configuration containing the changes.- Returns:
- Returns information about the result of changing the configuration.
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finalizePasswordStorageScheme
public void finalizePasswordStorageScheme()
Description copied from class:PasswordStorageScheme
Performs any necessary finalization that might be required when this password storage scheme is no longer needed (e.g., the scheme is disabled or the server is shutting down).- Overrides:
finalizePasswordStorageScheme
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
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encodeAuthPassword
public ByteString encodeAuthPassword(ByteSequence plaintext) throws LdapException
Description copied from class:PasswordStorageScheme
Encodes 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.- Overrides:
encodeAuthPassword
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Parameters:
plaintext
- The plaintext version of the password.- Returns:
- The password that has been encoded in the authentication password syntax.
- Throws:
LdapException
- 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:PasswordStorageScheme
Indicates whether the provided plaintext password matches the encoded password using the authentication password syntax with the given authInfo and authValue components.This is the historical method signature used by clients' custom password storage scheme. Be careful to not modify it.
- Overrides:
authPasswordMatches
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- 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:
true
if the provided plaintext password matches the encoded password according to the authentication password info syntax, orfalse
if it does not or this storage scheme does not support the authentication password syntax.
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isStorageSchemeSecure
public boolean isStorageSchemeSecure()
Description copied from class:PasswordStorageScheme
Indicates 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:
isStorageSchemeSecure
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Returns:
false
if it may be trivial to discover the original plain-text password from the encoded form, ortrue
if the scheme offers sufficient protection that revealing the encoded password will not easily reveal the corresponding plain-text value.
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isRehashNeeded
public boolean isRehashNeeded(ByteSequence storedPassword)
Description copied from class:PasswordStorageScheme
Indicates whether the encoded password needs to be rehashed because the password storage scheme configuration changed. Only password storage schemes with specific configuration parameters, such as PBKDF2, need to override this method.- Overrides:
isRehashNeeded
in classPasswordStorageScheme<Pbkdf2PasswordStorageSchemeCfg>
- Parameters:
storedPassword
- An existing hashed password including the name of the storage scheme.- Returns:
- whether the stored password should be rehashed.
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