org.spongycastle.asn1.cms

Class SignedData

java.lang.Object

org.spongycastle.asn1.ASN1Object

org.spongycastle.asn1.cms.SignedData

All Implemented Interfaces:

ASN1Encodable, Encodable

public class SignedData
extends ASN1Object

RFC 5652:

A signed data object containing multitude of SignerInfos.

 SignedData ::= SEQUENCE {
     version CMSVersion,
     digestAlgorithms DigestAlgorithmIdentifiers,
     encapContentInfo EncapsulatedContentInfo,
     certificates [0] IMPLICIT CertificateSet OPTIONAL,
     crls [1] IMPLICIT CertificateRevocationLists OPTIONAL,
     signerInfos SignerInfos
   }
 
 DigestAlgorithmIdentifiers ::= SET OF DigestAlgorithmIdentifier
 
 SignerInfos ::= SET OF SignerInfo
 

The version calculation uses following ruleset from RFC 5652 section 5.1:

 IF ((certificates is present) AND
    (any certificates with a type of other are present)) OR
    ((crls is present) AND
    (any crls with a type of other are present))
 THEN version MUST be 5
 ELSE
    IF (certificates is present) AND
       (any version 2 attribute certificates are present)
    THEN version MUST be 4
    ELSE
       IF ((certificates is present) AND
          (any version 1 attribute certificates are present)) OR
          (any SignerInfo structures are version 3) OR
          (encapContentInfo eContentType is other than id-data)
       THEN version MUST be 3
       ELSE version MUST be 1
 

Constructor Summary

Constructors

Constructor and Description
SignedData(ASN1Set digestAlgorithms, ContentInfo contentInfo, ASN1Set certificates, ASN1Set crls, ASN1Set signerInfos)

Method Summary

Modifier and Type	Method and Description
ASN1Set	getCertificates()
ASN1Set	getCRLs()
ASN1Set	getDigestAlgorithms()
ContentInfo	getEncapContentInfo()
static SignedData	getInstance(java.lang.Object o) Return a SignedData object from the given object.
ASN1Set	getSignerInfos()
ASN1Integer	getVersion()
ASN1Primitive	toASN1Primitive() Produce an object suitable for an ASN1OutputStream.

Methods inherited from class org.spongycastle.asn1.ASN1Object

equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode, toASN1Object

Methods inherited from class java.lang.Object

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

Constructor Detail

SignedData

public SignedData(ASN1Set digestAlgorithms,
                  ContentInfo contentInfo,
                  ASN1Set certificates,
                  ASN1Set crls,
                  ASN1Set signerInfos)

Method Detail

getInstance

public static SignedData getInstance(java.lang.Object o)

Return a SignedData object from the given object.

Accepted inputs:

• null → null
• SignedData object
• ASN1Sequence input formats with SignedData structure inside

Parameters:

o - the object we want converted.

Returns:

a reference that can be assigned to SignedData (may be null)

Throws:

java.lang.IllegalArgumentException - if the object cannot be converted.

getVersion

public ASN1Integer getVersion()

getDigestAlgorithms

public ASN1Set getDigestAlgorithms()

getEncapContentInfo

public ContentInfo getEncapContentInfo()

getCertificates

public ASN1Set getCertificates()

getCRLs

public ASN1Set getCRLs()

getSignerInfos

public ASN1Set getSignerInfos()

toASN1Primitive

public ASN1Primitive toASN1Primitive()

Produce an object suitable for an ASN1OutputStream.

Specified by:

toASN1Primitive in interface ASN1Encodable

Specified by:

toASN1Primitive in class ASN1Object

Returns:

a primitive representation of this object.