diff options
author | David Hook <dgh@cryptoworkshop.com> | 2013-05-31 11:07:45 +0400 |
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committer | David Hook <dgh@cryptoworkshop.com> | 2013-05-31 11:07:45 +0400 |
commit | 2b976f5364cfdbc37d3086019d93483c983eb80b (patch) | |
tree | cb846af3fd1d43f9c2562a1fb2d06b997ad8f229 /core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java | |
parent | 5f714bd92fbd780d22406f4bc3681be005f6f04a (diff) |
initial reshuffle
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java b/core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java new file mode 100644 index 00000000..e0f5efdf --- /dev/null +++ b/core/src/main/java/org/bouncycastle/asn1/pkcs/EncryptedData.java @@ -0,0 +1,115 @@ +package org.bouncycastle.asn1.pkcs; + +import org.bouncycastle.asn1.ASN1Encodable; +import org.bouncycastle.asn1.ASN1EncodableVector; +import org.bouncycastle.asn1.ASN1Integer; +import org.bouncycastle.asn1.ASN1Object; +import org.bouncycastle.asn1.ASN1ObjectIdentifier; +import org.bouncycastle.asn1.ASN1OctetString; +import org.bouncycastle.asn1.ASN1Primitive; +import org.bouncycastle.asn1.ASN1Sequence; +import org.bouncycastle.asn1.ASN1TaggedObject; +import org.bouncycastle.asn1.BERSequence; +import org.bouncycastle.asn1.BERTaggedObject; +import org.bouncycastle.asn1.x509.AlgorithmIdentifier; + +/** + * The EncryptedData object. + * <pre> + * EncryptedData ::= SEQUENCE { + * version Version, + * encryptedContentInfo EncryptedContentInfo + * } + * + * + * EncryptedContentInfo ::= SEQUENCE { + * contentType ContentType, + * contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier, + * encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL + * } + * + * EncryptedContent ::= OCTET STRING + * </pre> + */ +public class EncryptedData + extends ASN1Object +{ + ASN1Sequence data; + ASN1ObjectIdentifier bagId; + ASN1Primitive bagValue; + + public static EncryptedData getInstance( + Object obj) + { + if (obj instanceof EncryptedData) + { + return (EncryptedData)obj; + } + + if (obj != null) + { + return new EncryptedData(ASN1Sequence.getInstance(obj)); + } + + return null; + } + + private EncryptedData( + ASN1Sequence seq) + { + int version = ((ASN1Integer)seq.getObjectAt(0)).getValue().intValue(); + + if (version != 0) + { + throw new IllegalArgumentException("sequence not version 0"); + } + + this.data = ASN1Sequence.getInstance(seq.getObjectAt(1)); + } + + public EncryptedData( + ASN1ObjectIdentifier contentType, + AlgorithmIdentifier encryptionAlgorithm, + ASN1Encodable content) + { + ASN1EncodableVector v = new ASN1EncodableVector(); + + v.add(contentType); + v.add(encryptionAlgorithm.toASN1Primitive()); + v.add(new BERTaggedObject(false, 0, content)); + + data = new BERSequence(v); + } + + public ASN1ObjectIdentifier getContentType() + { + return ASN1ObjectIdentifier.getInstance(data.getObjectAt(0)); + } + + public AlgorithmIdentifier getEncryptionAlgorithm() + { + return AlgorithmIdentifier.getInstance(data.getObjectAt(1)); + } + + public ASN1OctetString getContent() + { + if (data.size() == 3) + { + ASN1TaggedObject o = ASN1TaggedObject.getInstance(data.getObjectAt(2)); + + return ASN1OctetString.getInstance(o, false); + } + + return null; + } + + public ASN1Primitive toASN1Primitive() + { + ASN1EncodableVector v = new ASN1EncodableVector(); + + v.add(new ASN1Integer(0)); + v.add(data); + + return new BERSequence(v); + } +} |