es.gob.afirma.tsl.utils

Class UtilsCrypto

java.lang.Object

es.gob.afirma.tsl.utils.UtilsCrypto

public final class UtilsCrypto
extends java.lang.Object

Utilities class for cryptographics operations.

Project:

Library for the integration with the services of @Firma, eVisor and TS@.

Version:

1.1, 15/06/2021.

Method Summary

Modifier and Type	Method and Description
static byte[]	calculateDigest(java.lang.String algorithm, byte[] data, java.security.Provider provider) Calculate the digest of the input data with the algorithm specified.
static byte[]	calculateDigestReturnB64ByteArray(java.lang.String algorithm, byte[] data, java.security.Provider provider) Calculate the digest in base 64 of the input data with the algorithm specified.
static java.lang.String	calculateDigestReturnB64String(java.lang.String algorithm, byte[] data, java.security.Provider provider) Calculate the digest in base 64 of the input data with the algorithm specified.
static java.lang.String	translateHashAlgorithmXML(java.lang.String algorithmURI) Method that obtains the name of certain algorithm from the URI of the algorithm (only for XML format).

Methods inherited from class java.lang.Object

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

Method Detail

translateHashAlgorithmXML

public static java.lang.String translateHashAlgorithmXML(java.lang.String algorithmURI)
                                                  throws CommonUtilsException

Method that obtains the name of certain algorithm from the URI of the algorithm (only for XML format). For example: "http://www.w3.org/2000/09/xmldsig#sha1" --> "SHA1".

Parameters:

algorithmURI - Parameter that represents the URI of the algorithm.

Returns:

the name of the algorithm.

Throws:

CommonUtilsException - If the algorithm isn't supported.

calculateDigest

public static byte[] calculateDigest(java.lang.String algorithm,
                                     byte[] data,
                                     java.security.Provider provider)
                              throws CommonUtilsException

Calculate the digest of the input data with the algorithm specified.

Parameters:

algorithm - Hash algorithm to apply. It can not be null or empty.

data - Array of bytes that represents the data to calculate the hash. It can not be null or empty.

provider - Provider to use for calculate the hash algorithm. If it is null, then tries to use the provider setted in java security providers configuration.

Returns:

Array of bytes that represents the hash calculated.

Throws:

CommonUtilsException - In case of the input hash or data are note properly defined, or that the input hash is not recognized.

calculateDigestReturnB64ByteArray

public static byte[] calculateDigestReturnB64ByteArray(java.lang.String algorithm,
                                                       byte[] data,
                                                       java.security.Provider provider)
                                                throws CommonUtilsException

Calculate the digest in base 64 of the input data with the algorithm specified.

Parameters:

algorithm - Hash algorithm to apply. It can not be null or empty.

data - Array of bytes that represents the data to calculate the hash. It can not be null or empty.

provider - Provider to use for calculate the hash algorithm. If it is null, then tries to use the provider setted in java security providers configuration.

Returns:

Array of bytes that represents the hash calculated in base 64 (not chunked).

Throws:

CommonUtilsException - In case of the input hash or data are note properly defined, or that the input hash is not recognized.

calculateDigestReturnB64String

public static java.lang.String calculateDigestReturnB64String(java.lang.String algorithm,
                                                              byte[] data,
                                                              java.security.Provider provider)
                                                       throws CommonUtilsException

Calculate the digest in base 64 of the input data with the algorithm specified.

Parameters:

algorithm - Hash algorithm to apply. It can not be null or empty.

data - Array of bytes that represents the data to calculate the hash. It can not be null or empty.

provider - Provider to use for calculate the hash algorithm. If it is null, then tries to use the provider setted in java security providers configuration.

Returns:

String that represents the hash calculated in base 64 (not chunked).

Throws:

CommonUtilsException - In case of the input hash or data are note properly defined, or that the input hash is not recognized.