Package de.trustable.ca3s.core.service.util

Class ProtectedContentUtil

java.lang.Object

de.trustable.ca3s.core.service.util.ProtectedContentUtil

@Service
public class ProtectedContentUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static Instant	MAX_INSTANT

Constructor Summary

Constructors

Constructor	Description
ProtectedContentUtil(ProtectedContentRepository protContentRepository, String protectionSecretFallback, String protectionSecret, String salt, int iterations, String pbeAlgo)

Method Summary

Modifier and Type	Method	Description
ProtectedContent	createProtectedContent(String plainText, ProtectedContentType pct, ContentRelationType crt, long connectionId)	create a new ProtectedContent object and save the given content
ProtectedContent	createProtectedContent(String plainText, ProtectedContentType pct, ContentRelationType crt, long connectionId, int leftUsages, Instant validTo)	create a new ProtectedContent object and save the given content
byte[]	deriveSecret(char[] secret)
byte[]	deriveSecret(String secret)
String	protectString(String content)
List<ProtectedContent>	retrieveProtectedContent(ProtectedContentType type, ContentRelationType crt, long id)
String	unprotectString(String protectedContent)
void	updateServersideKeyRetentionSettings(long csrId, Instant validTo, int usages)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_INSTANT

public static final Instant MAX_INSTANT

Constructor Detail

ProtectedContentUtil

public ProtectedContentUtil(ProtectedContentRepository protContentRepository,
                            @Value("${protectionSecret:mJvR25yt4NHTIqe5Hz7nUHhQNUuM}")
                            String protectionSecretFallback,
                            @Value("${ca3s.protectionSecret:#{null}}")
                            String protectionSecret,
                            @Value("${ca3s.connection.salt:ca3sSalt}")
                            String salt,
                            @Value("${ca3s.connection.iterations:4567}")
                            int iterations,
                            @Value("${ca3s.connection.pbeAlgo:PBKDF2WithHmacSHA256}")
                            String pbeAlgo)

Method Detail

protectString

public String protectString(String content)

unprotectString

public String unprotectString(String protectedContent)

createProtectedContent

public ProtectedContent createProtectedContent(String plainText,
                                               ProtectedContentType pct,
                                               ContentRelationType crt,
                                               long connectionId)

create a new ProtectedContent object and save the given content

Parameters:

plainText - the plain text to be protected

pct - the content type of the plainText

crt - the related entity

connectionId - the related entity

Returns:

the freshly created object

createProtectedContent

public ProtectedContent createProtectedContent(String plainText,
                                               ProtectedContentType pct,
                                               ContentRelationType crt,
                                               long connectionId,
                                               int leftUsages,
                                               Instant validTo)

create a new ProtectedContent object and save the given content

Parameters:

plainText - the plain text to be protected

pct - the content type of the plainText

crt - the related entity

connectionId - the related entity

leftUsages - number of left usages for this element

validTo - element usable until 'validTo'

Returns:

the freshly created object

retrieveProtectedContent

public List<ProtectedContent> retrieveProtectedContent(ProtectedContentType type,
                                                       ContentRelationType crt,
                                                       long id)

Parameters:

type - the type of object which is required

crt - the related entity

id - the object id

Returns:

list of

updateServersideKeyRetentionSettings

public void updateServersideKeyRetentionSettings(long csrId,
                                                 Instant validTo,
                                                 int usages)

deriveSecret

public byte[] deriveSecret(String secret)
                    throws NoSuchAlgorithmException,
                           InvalidKeySpecException

Throws:

NoSuchAlgorithmException

InvalidKeySpecException

deriveSecret

public byte[] deriveSecret(char[] secret)
                    throws NoSuchAlgorithmException,
                           InvalidKeySpecException

Throws:

NoSuchAlgorithmException

InvalidKeySpecException