Class DigestInfo

java.lang.Object

es.gob.jmulticard.asn1.DecoderObject

es.gob.jmulticard.asn1.der.Sequence

es.gob.jmulticard.asn1.der.pkcs1.DigestInfo

public final class DigestInfo
extends Sequence

Tipo ASN.1 PKCS#1 DigestInfo.

  DigestInfo::=SEQUENCE {
    digestAlgorithm  AlgorithmIdentifier,
    digest OCTET STRING
  }
 

Author:

Tomás García-Merás.

Constructor Summary

Constructors

Constructor	Description
DigestInfo()	Construye un objeto ASN.1 PKCS#1 DigestInfo.

Method Summary

Modifier and Type	Method	Description
static byte[]	encode(String signingAlgorithm, byte[] data, CryptoHelper cryptoHelper)	Codifica una estructura DigestInfo.
protected static byte[]	getSha1DigestinfoHeader()
protected static byte[]	getSha256DigestinfoHeader()
protected static byte[]	getSha384DigestinfoHeader()
protected static byte[]	getSha512DigestinfoHeader()
String	toString()

Methods inherited from class Sequence

decodeValue, getDefaultTag, getElementAt, getElementCount

Methods inherited from class DecoderObject

checkTag, getBytes, getRawDerValue, setDerValue

Methods inherited from class Object

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

Constructor Details

DigestInfo

public DigestInfo()

Construye un objeto ASN.1 PKCS#1 DigestInfo.

Method Details

getSha1DigestinfoHeader

protected static byte[] getSha1DigestinfoHeader()

Returns:

the sha1DigestinfoHeader

getSha256DigestinfoHeader

protected static byte[] getSha256DigestinfoHeader()

Returns:

the sha256DigestinfoHeader

getSha384DigestinfoHeader

protected static byte[] getSha384DigestinfoHeader()

Returns:

the sha384DigestinfoHeader

getSha512DigestinfoHeader

protected static byte[] getSha512DigestinfoHeader()

Returns:

the sha512DigestinfoHeader

toString

public String toString()

Overrides:

toString in class Object

encode

public static byte[] encode(String signingAlgorithm,
 byte[] data,
 CryptoHelper cryptoHelper)
                     throws IOException

Codifica una estructura DigestInfo.

Parameters:

signingAlgorithm - Algoritmo de huella digital o de firma electrónica.

data - Datos de los que obtener la estructura.

cryptoHelper - Manejador de operaciones criptográficas.

Returns:

Estructura DigestInfo.

Throws:

IOException - Cuando se produce algun error en la estrucura de la estructura.