Module jpms_dss_validation

Package eu.europa.esig.dss.validation.policy

Class CryptographicSuiteUtils

java.lang.Object

eu.europa.esig.dss.validation.policy.CryptographicSuiteUtils

public final class CryptographicSuiteUtils
extends Object

This class contains supporting methods for processing a eu.europa.esig.dss.model.policy.CryptographicSuite

Method Summary

Modifier and Type	Method	Description
static Date	getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.DigestAlgorithm digestAlgorithm)	Gets an expiration date for the digest algorithm with name digestAlgoToSearch.
static Date	getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm, Integer keySize)	Gets an expiration date for the encryption algorithm with name algoToSearch and keyLength.
static Date	getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm, String keyLength)	Gets an expiration date for the encryption algorithm with name algoToSearch and keyLength.
static List<eu.europa.esig.dss.enumerations.DigestAlgorithm>	getReliableDigestAlgorithmsAtTime(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, Date validationTime)	This method returns a list of reliable DigestAlgorithm according to the current validation policy at the given validation time
static List<eu.europa.esig.dss.model.policy.EncryptionAlgorithmWithMinKeySize>	getReliableEncryptionAlgorithmsWithMinimalKeyLengthAtTime(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, Date validationTime)	This method returns a map between reliable EncryptionAlgorithm according to the current validation policy and their minimal accepted key length at the given time.
static boolean	isDigestAlgorithmReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.DigestAlgorithm digestAlgorithm)	Checks if the given DigestAlgorithm is reliable (acceptable)
static boolean	isEncryptionAlgorithmReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm)	Checks if the given EncryptionAlgorithm is reliable (acceptable)
static boolean	isEncryptionAlgorithmWithKeySizeReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm, Integer keySize)	Checks if the {code keyLength} for EncryptionAlgorithm is reliable (acceptable)
static boolean	isEncryptionAlgorithmWithKeySizeReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite, eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm, String keyLength)	Checks if the {code keyLength} for EncryptionAlgorithm is reliable (acceptable)

Methods inherited from class java.lang.Object

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

Method Details

isEncryptionAlgorithmReliable

public static boolean isEncryptionAlgorithmReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm)

Checks if the given EncryptionAlgorithm is reliable (acceptable)

Parameters:

cryptographicSuite - CryptographicSuite

encryptionAlgorithm - EncryptionAlgorithm to check

Returns:

TRUE if the algorithm is reliable, FALSE otherwise

isDigestAlgorithmReliable

public static boolean isDigestAlgorithmReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.DigestAlgorithm digestAlgorithm)

Checks if the given DigestAlgorithm is reliable (acceptable)

Parameters:

cryptographicSuite - CryptographicSuite

digestAlgorithm - DigestAlgorithm to check

Returns:

TRUE if the algorithm is reliable, FALSE otherwise

isEncryptionAlgorithmWithKeySizeReliable

public static boolean isEncryptionAlgorithmWithKeySizeReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm,
 String keyLength)

Checks if the {code keyLength} for EncryptionAlgorithm is reliable (acceptable)

Parameters:

cryptographicSuite - CryptographicSuite

encryptionAlgorithm - EncryptionAlgorithm to check key length for

keyLength - String the key length to be checked

Returns:

TRUE if the key length for the algorithm is reliable, FALSE otherwise

isEncryptionAlgorithmWithKeySizeReliable

public static boolean isEncryptionAlgorithmWithKeySizeReliable(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm,
 Integer keySize)

Checks if the {code keyLength} for EncryptionAlgorithm is reliable (acceptable)

Parameters:

cryptographicSuite - CryptographicSuite

encryptionAlgorithm - EncryptionAlgorithm to check key length for

keySize - Integer the key length to be checked

Returns:

TRUE if the key length for the algorithm is reliable, FALSE otherwise

getExpirationDate

public static Date getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm,
 String keyLength)

Gets an expiration date for the encryption algorithm with name algoToSearch and keyLength. Returns null if the expiration date is not defined for the algorithm.

Parameters:

cryptographicSuite - CryptographicSuite

encryptionAlgorithm - EncryptionAlgorithm to get expiration date for

keyLength - String key length used to sign the token

Returns:

Date

getExpirationDate

public static Date getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.EncryptionAlgorithm encryptionAlgorithm,
 Integer keySize)

Gets an expiration date for the encryption algorithm with name algoToSearch and keyLength. Returns null if the expiration date is not defined for the algorithm.

Parameters:

cryptographicSuite - CryptographicSuite

encryptionAlgorithm - EncryptionAlgorithm to get expiration date for

keySize - Integer key length used to sign the token

Returns:

Date

getExpirationDate

public static Date getExpirationDate(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 eu.europa.esig.dss.enumerations.DigestAlgorithm digestAlgorithm)

Gets an expiration date for the digest algorithm with name digestAlgoToSearch. Returns null if the expiration date is not defined for the algorithm.

Parameters:

cryptographicSuite - CryptographicSuite

digestAlgorithm - DigestAlgorithm the algorithm to get expiration date for

Returns:

Date

getReliableDigestAlgorithmsAtTime

public static List<eu.europa.esig.dss.enumerations.DigestAlgorithm> getReliableDigestAlgorithmsAtTime(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 Date validationTime)

This method returns a list of reliable DigestAlgorithm according to the current validation policy at the given validation time

Parameters:

cryptographicSuite - CryptographicSuite

validationTime - Date to verify against

Returns:

a list of DigestAlgorithms

getReliableEncryptionAlgorithmsWithMinimalKeyLengthAtTime

public static List<eu.europa.esig.dss.model.policy.EncryptionAlgorithmWithMinKeySize> getReliableEncryptionAlgorithmsWithMinimalKeyLengthAtTime(eu.europa.esig.dss.model.policy.CryptographicSuite cryptographicSuite,
 Date validationTime)

This method returns a map between reliable EncryptionAlgorithm according to the current validation policy and their minimal accepted key length at the given time.

Parameters:

cryptographicSuite - CryptographicSuite

validationTime - Date to verify against

Returns:

a list of EncryptionAlgorithmWithMinKeySizes