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Diffstat (limited to 'core/src/main/java/org/spongycastle/asn1/cmp/PKIHeader.java')
| -rw-r--r-- | core/src/main/java/org/spongycastle/asn1/cmp/PKIHeader.java | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/cmp/PKIHeader.java b/core/src/main/java/org/spongycastle/asn1/cmp/PKIHeader.java new file mode 100644 index 00000000..afcd7767 --- /dev/null +++ b/core/src/main/java/org/spongycastle/asn1/cmp/PKIHeader.java @@ -0,0 +1,260 @@ +package org.spongycastle.asn1.cmp; + +import java.util.Enumeration; + +import org.spongycastle.asn1.ASN1Encodable; +import org.spongycastle.asn1.ASN1EncodableVector; +import org.spongycastle.asn1.ASN1GeneralizedTime; +import org.spongycastle.asn1.ASN1Integer; +import org.spongycastle.asn1.ASN1Object; +import org.spongycastle.asn1.ASN1OctetString; +import org.spongycastle.asn1.ASN1Primitive; +import org.spongycastle.asn1.ASN1Sequence; +import org.spongycastle.asn1.ASN1TaggedObject; +import org.spongycastle.asn1.DERSequence; +import org.spongycastle.asn1.DERTaggedObject; +import org.spongycastle.asn1.x500.X500Name; +import org.spongycastle.asn1.x509.AlgorithmIdentifier; +import org.spongycastle.asn1.x509.GeneralName; + +public class PKIHeader + extends ASN1Object +{ + /** + * Value for a "null" recipient or sender. + */ + public static final GeneralName NULL_NAME = new GeneralName(X500Name.getInstance(new DERSequence())); + + public static final int CMP_1999 = 1; + public static final int CMP_2000 = 2; + + private ASN1Integer pvno; + private GeneralName sender; + private GeneralName recipient; + private ASN1GeneralizedTime messageTime; + private AlgorithmIdentifier protectionAlg; + private ASN1OctetString senderKID; // KeyIdentifier + private ASN1OctetString recipKID; // KeyIdentifier + private ASN1OctetString transactionID; + private ASN1OctetString senderNonce; + private ASN1OctetString recipNonce; + private PKIFreeText freeText; + private ASN1Sequence generalInfo; + + private PKIHeader(ASN1Sequence seq) + { + Enumeration en = seq.getObjects(); + + pvno = ASN1Integer.getInstance(en.nextElement()); + sender = GeneralName.getInstance(en.nextElement()); + recipient = GeneralName.getInstance(en.nextElement()); + + while (en.hasMoreElements()) + { + ASN1TaggedObject tObj = (ASN1TaggedObject)en.nextElement(); + + switch (tObj.getTagNo()) + { + case 0: + messageTime = ASN1GeneralizedTime.getInstance(tObj, true); + break; + case 1: + protectionAlg = AlgorithmIdentifier.getInstance(tObj, true); + break; + case 2: + senderKID = ASN1OctetString.getInstance(tObj, true); + break; + case 3: + recipKID = ASN1OctetString.getInstance(tObj, true); + break; + case 4: + transactionID = ASN1OctetString.getInstance(tObj, true); + break; + case 5: + senderNonce = ASN1OctetString.getInstance(tObj, true); + break; + case 6: + recipNonce = ASN1OctetString.getInstance(tObj, true); + break; + case 7: + freeText = PKIFreeText.getInstance(tObj, true); + break; + case 8: + generalInfo = ASN1Sequence.getInstance(tObj, true); + break; + default: + throw new IllegalArgumentException("unknown tag number: " + tObj.getTagNo()); + } + } + } + + public static PKIHeader getInstance(Object o) + { + if (o instanceof PKIHeader) + { + return (PKIHeader)o; + } + + if (o != null) + { + return new PKIHeader(ASN1Sequence.getInstance(o)); + } + + return null; + } + + public PKIHeader( + int pvno, + GeneralName sender, + GeneralName recipient) + { + this(new ASN1Integer(pvno), sender, recipient); + } + + private PKIHeader( + ASN1Integer pvno, + GeneralName sender, + GeneralName recipient) + { + this.pvno = pvno; + this.sender = sender; + this.recipient = recipient; + } + + public ASN1Integer getPvno() + { + return pvno; + } + + public GeneralName getSender() + { + return sender; + } + + public GeneralName getRecipient() + { + return recipient; + } + + public ASN1GeneralizedTime getMessageTime() + { + return messageTime; + } + + public AlgorithmIdentifier getProtectionAlg() + { + return protectionAlg; + } + + public ASN1OctetString getSenderKID() + { + return senderKID; + } + + public ASN1OctetString getRecipKID() + { + return recipKID; + } + + public ASN1OctetString getTransactionID() + { + return transactionID; + } + + public ASN1OctetString getSenderNonce() + { + return senderNonce; + } + + public ASN1OctetString getRecipNonce() + { + return recipNonce; + } + + public PKIFreeText getFreeText() + { + return freeText; + } + + public InfoTypeAndValue[] getGeneralInfo() + { + if (generalInfo == null) + { + return null; + } + InfoTypeAndValue[] results = new InfoTypeAndValue[generalInfo.size()]; + for (int i = 0; i < results.length; i++) + { + results[i] + = InfoTypeAndValue.getInstance(generalInfo.getObjectAt(i)); + } + return results; + } + + /** + * <pre> + * PKIHeader ::= SEQUENCE { + * pvno INTEGER { cmp1999(1), cmp2000(2) }, + * sender GeneralName, + * -- identifies the sender + * recipient GeneralName, + * -- identifies the intended recipient + * messageTime [0] GeneralizedTime OPTIONAL, + * -- time of production of this message (used when sender + * -- believes that the transport will be "suitable"; i.e., + * -- that the time will still be meaningful upon receipt) + * protectionAlg [1] AlgorithmIdentifier OPTIONAL, + * -- algorithm used for calculation of protection bits + * senderKID [2] KeyIdentifier OPTIONAL, + * recipKID [3] KeyIdentifier OPTIONAL, + * -- to identify specific keys used for protection + * transactionID [4] OCTET STRING OPTIONAL, + * -- identifies the transaction; i.e., this will be the same in + * -- corresponding request, response, certConf, and PKIConf + * -- messages + * senderNonce [5] OCTET STRING OPTIONAL, + * recipNonce [6] OCTET STRING OPTIONAL, + * -- nonces used to provide replay protection, senderNonce + * -- is inserted by the creator of this message; recipNonce + * -- is a nonce previously inserted in a related message by + * -- the intended recipient of this message + * freeText [7] PKIFreeText OPTIONAL, + * -- this may be used to indicate context-specific instructions + * -- (this field is intended for human consumption) + * generalInfo [8] SEQUENCE SIZE (1..MAX) OF + * InfoTypeAndValue OPTIONAL + * -- this may be used to convey context-specific information + * -- (this field not primarily intended for human consumption) + * } + * </pre> + * + * @return a basic ASN.1 object representation. + */ + public ASN1Primitive toASN1Primitive() + { + ASN1EncodableVector v = new ASN1EncodableVector(); + + v.add(pvno); + v.add(sender); + v.add(recipient); + addOptional(v, 0, messageTime); + addOptional(v, 1, protectionAlg); + addOptional(v, 2, senderKID); + addOptional(v, 3, recipKID); + addOptional(v, 4, transactionID); + addOptional(v, 5, senderNonce); + addOptional(v, 6, recipNonce); + addOptional(v, 7, freeText); + addOptional(v, 8, generalInfo); + + return new DERSequence(v); + } + + private void addOptional(ASN1EncodableVector v, int tagNo, ASN1Encodable obj) + { + if (obj != null) + { + v.add(new DERTaggedObject(true, tagNo, obj)); + } + } +} |