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/eac/UnsignedInteger.java | |
parent | 5f714bd92fbd780d22406f4bc3681be005f6f04a (diff) |
initial reshuffle
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/eac/UnsignedInteger.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/eac/UnsignedInteger.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/eac/UnsignedInteger.java b/core/src/main/java/org/bouncycastle/asn1/eac/UnsignedInteger.java new file mode 100644 index 00000000..64a91422 --- /dev/null +++ b/core/src/main/java/org/bouncycastle/asn1/eac/UnsignedInteger.java @@ -0,0 +1,74 @@ +package org.bouncycastle.asn1.eac; + +import java.math.BigInteger; + +import org.bouncycastle.asn1.ASN1Object; +import org.bouncycastle.asn1.ASN1OctetString; +import org.bouncycastle.asn1.ASN1Primitive; +import org.bouncycastle.asn1.ASN1TaggedObject; +import org.bouncycastle.asn1.DEROctetString; +import org.bouncycastle.asn1.DERTaggedObject; + +public class UnsignedInteger + extends ASN1Object +{ + private int tagNo; + private BigInteger value; + + public UnsignedInteger(int tagNo, BigInteger value) + { + this.tagNo = tagNo; + this.value = value; + } + + private UnsignedInteger(ASN1TaggedObject obj) + { + this.tagNo = obj.getTagNo(); + this.value = new BigInteger(1, ASN1OctetString.getInstance(obj, false).getOctets()); + } + + public static UnsignedInteger getInstance(Object obj) + { + if (obj instanceof UnsignedInteger) + { + return (UnsignedInteger)obj; + } + if (obj != null) + { + return new UnsignedInteger(ASN1TaggedObject.getInstance(obj)); + } + + return null; + } + + private byte[] convertValue() + { + byte[] v = value.toByteArray(); + + if (v[0] == 0) + { + byte[] tmp = new byte[v.length - 1]; + + System.arraycopy(v, 1, tmp, 0, tmp.length); + + return tmp; + } + + return v; + } + + public int getTagNo() + { + return tagNo; + } + + public BigInteger getValue() + { + return value; + } + + public ASN1Primitive toASN1Primitive() + { + return new DERTaggedObject(false, tagNo, new DEROctetString(convertValue())); + } +} |