org.jasypt.digest.config
Interface StringDigesterConfig

All Superinterfaces:

DigesterConfig

All Known Implementing Classes:

EnvironmentStringDigesterConfig, SimpleStringDigesterConfig

public interface StringDigesterConfig
extends DigesterConfig

Common interface for config classes applicable to StandardStringDigester objects. This interface extends DigesterConfig to add config parameters specific to String digesting.

This interface lets the user create new StringDigesterConfig classes which retrieve values for this parameters from different (and maybe more secure) sources (remote servers, LDAP, other databases...), and do this transparently for the digester object.

The config objects passed to a digester will only be queried once for each configuration parameter, and this will happen during the initialization of the digester object.

For a default implementation, see SimpleStringDigesterConfig.

Since:

1.3

Author:

Daniel Fernández

Method Summary

String	getPrefix() Adds the returned (plain) prefix at the beginning of generated digests, and also expects to find it in any plain message provided for matching operations (raising an EncryptionOperationNotPossibleException if not).
String	getStringOutputType() This parameter lets the user specify the form in which String output will be encoded.
String	getSuffix() Adds the returned (plain) suffix at the end of generated digests, and also expects to find it in any plain message provided for matching operations (raising an EncryptionOperationNotPossibleException if not).
Boolean	isUnicodeNormalizationIgnored() This parameter lets the user specify if the Unicode text normalization step performed during String digest and matching should be ignored.

Methods inherited from interface org.jasypt.digest.config.DigesterConfig

getAlgorithm, getInvertPositionOfPlainSaltInEncryptionResults, getInvertPositionOfSaltInMessageBeforeDigesting, getIterations, getPoolSize, getProvider, getProviderName, getSaltGenerator, getSaltSizeBytes, getUseLenientSaltSizeCheck

Method Detail

isUnicodeNormalizationIgnored

Boolean isUnicodeNormalizationIgnored()

This parameter lets the user specify if the Unicode text normalization step performed during String digest and matching should be ignored.

The Java Virtual Machine internally handles all Strings as UNICODE. When digesting or matching digests in jasypt, these Strings are first normalized to its NFC form so that digest matching is not affected by the specific form in which the messages where input.

It is normally safe (and recommended) to leave this parameter set to its default FALSE value (and thus DO perform normalization operations). But in some specific cases in which issues with legacy software could arise, it might be useful to set this to TRUE.

For more information on unicode text normalization, see this issue of Core Java Technologies Tech Tips.

Returns:

whether the unicode text normalization step should be ignored or not.

getStringOutputType

String getStringOutputType()

This parameter lets the user specify the form in which String output will be encoded. Available encoding types are:

• base64 (default)
• hexadecimal

Returns:

The name of the encoding type for String output

getPrefix

String getPrefix()

Adds the returned (plain) prefix at the beginning of generated digests, and also expects to find it in any plain message provided for matching operations (raising an EncryptionOperationNotPossibleException if not).

Returns:

the prefix to be added to all digests

Since:

1.7

getSuffix

String getSuffix()

Adds the returned (plain) suffix at the end of generated digests, and also expects to find it in any plain message provided for matching operations (raising an EncryptionOperationNotPossibleException if not).

Returns:

the suffix to be added to all digests

Since:

1.7