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org.mozilla.jss.pkix.cms
Class SignedData
java.lang.Object org.mozilla.jss.pkix.cms.SignedData
- All Implemented Interfaces:
- ASN1Value
public class SignedData
- extends java.lang.Object
- implements ASN1Value
- extends java.lang.Object
A CMS SignedData structure.
The certificates field should only contain X.509 certificates. PKCS #6 extended certificates will fail to decode properly.
Nested Class Summary | |
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static class |
SignedData.Template
A template file for decoding a SignedData blob |
Constructor Summary | |
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SignedData(SET digestAlgorithms,
EncapsulatedContentInfo contentInfo,
SET certificates,
SET crls,
SET signerInfos)
Create a SignedData ASN1 object. |
Method Summary | |
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void |
encode(java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using its own base tag. |
void |
encode(Tag tag,
java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using an implicit tag. |
SET |
getCertificates()
Returns the certificates field, which is a SET of X.509 certificates (org.mozilla.jss.pkix.cert.Certificate). |
EncapsulatedContentInfo |
getContentInfo()
Returns the EncapsulatedContentInfo containing the signed content. |
SET |
getCrls()
Returns the crls field, which contains a SET of certificate revocation lists represented by ANYs (org.mozilla.jss.asn1.ANY). |
SET |
getDigestAlgorithmIdentifiers()
Returns the digest algorithms used by the signers to digest the signed content. |
SET |
getSignerInfos()
Returns the signerInfos field, which is a SET of org.mozilla.jss.pkcs7.SignerInfo. |
Tag |
getTag()
Returns the base tag for this type, not counting any tags that may be imposed on it by its context. |
static SignedData.Template |
getTemplate()
|
INTEGER |
getVersion()
Returns the version of this SignedData. |
boolean |
hasCertificates()
Returns true if the certificates field is present. |
boolean |
hasCrls()
Returns true if the crls field is present. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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SignedData
public SignedData(SET digestAlgorithms, EncapsulatedContentInfo contentInfo, SET certificates, SET crls, SET signerInfos)
- Create a SignedData ASN1 object. Both certificates and crls
are optional. If you pass in a null for either value, that
parameter will not get written in the sequence.
- Parameters:
digestAlgorithms
- A SET of zero or more algorithm identifiers. The purpose of this item is to list the digest algorithms used by the various signers to digest the signed content. This field will also be updated by theaddSigner
method. If all the signers are added withaddSigner
, it is not necessary to list the digest algorithms here.If
null
is passed in, thedigestAlgorithms
field will be initialized with an emptySET
.contentInfo
- The content that is being signed. This parameter may not benull
. However, thecontent
field of the contentInfo may be omitted, in which case the signatures contained in theSignerInfo
structures are presumed to be on externally-supplied data.certificates
- A SET of org.mozilla.jss.pkix.cert.Certificate, the certificates containing the public keys used to sign the content. It may also contain elements of the CA chain extending from the leaf certificates. It is not necessary to include the CA chain, or indeed to include any certificates, if the certificates are expected to already be possessed by the recipient. The recipient can use the issuer and serial number in the SignerInfo structure to search for the necessary certificates. If this parameter isnull
, thecertificates
field will be omitted.crls
- A SET of ASN1Values, which should encode to the ASN1 type CertificateRevocationList. This implementation does not interpret crls. If this parameter isnull
, thecrls
field will be omitted.signerInfos
- SignerInfo structures containing signatures of the content. Additional signerInfos can be added with theaddSigner
method. If this parameter isnull
, the field will be initialized with an emptySET
.
Method Detail |
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getVersion
public INTEGER getVersion()
- Returns the version of this SignedData. The current version of the
spec is version 3.
getDigestAlgorithmIdentifiers
public SET getDigestAlgorithmIdentifiers()
- Returns the digest algorithms used by the signers to digest the
signed content. There may be more than one, if different signers
use different digesting algorithms.
getContentInfo
public EncapsulatedContentInfo getContentInfo()
- Returns the EncapsulatedContentInfo containing the signed content. The simple
case is for the content to be of type data, although any
content type can be signed.
getCertificates
public SET getCertificates()
- Returns the certificates field, which is a SET of
X.509 certificates (org.mozilla.jss.pkix.cert.Certificate).
PKCS #6 Extended Certificates are not supported by this implementation.
Returns
null
if this optional field is not present.
hasCertificates
public boolean hasCertificates()
- Returns true if the
certificates
field is present.
getCrls
public SET getCrls()
- Returns the crls field, which contains a SET of certificate
revocation lists represented by ANYs (org.mozilla.jss.asn1.ANY).
hasCrls
public boolean hasCrls()
- Returns true if the
crls
field is present.
getSignerInfos
public SET getSignerInfos()
- Returns the signerInfos field, which is a SET of
org.mozilla.jss.pkcs7.SignerInfo.
getTag
public Tag getTag()
- Description copied from interface:
ASN1Value
- Returns the base tag for this type, not counting any tags
that may be imposed on it by its context.
encode
public void encode(java.io.OutputStream ostream) throws java.io.IOException
- Description copied from interface:
ASN1Value
- Write this value's DER encoding to an output stream using
its own base tag.
- Throws:
java.io.IOException
encode
public void encode(Tag tag, java.io.OutputStream ostream) throws java.io.IOException
- Description copied from interface:
ASN1Value
- Write this value's DER encoding to an output stream using
an implicit tag.
- Throws:
java.io.IOException
getTemplate
public static SignedData.Template getTemplate()
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