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Diffstat (limited to 'bcprov/src/main/java/org/bouncycastle/asn1/cmp/PBMParameter.java')
-rw-r--r-- | bcprov/src/main/java/org/bouncycastle/asn1/cmp/PBMParameter.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/asn1/cmp/PBMParameter.java b/bcprov/src/main/java/org/bouncycastle/asn1/cmp/PBMParameter.java new file mode 100644 index 0000000..fdf2c25 --- /dev/null +++ b/bcprov/src/main/java/org/bouncycastle/asn1/cmp/PBMParameter.java @@ -0,0 +1,117 @@ +package org.bouncycastle.asn1.cmp; + +import org.bouncycastle.asn1.ASN1EncodableVector; +import org.bouncycastle.asn1.ASN1Integer; +import org.bouncycastle.asn1.ASN1Object; +import org.bouncycastle.asn1.ASN1OctetString; +import org.bouncycastle.asn1.ASN1Primitive; +import org.bouncycastle.asn1.ASN1Sequence; +import org.bouncycastle.asn1.DEROctetString; +import org.bouncycastle.asn1.DERSequence; +import org.bouncycastle.asn1.x509.AlgorithmIdentifier; + +public class PBMParameter + extends ASN1Object +{ + private ASN1OctetString salt; + private AlgorithmIdentifier owf; + private ASN1Integer iterationCount; + private AlgorithmIdentifier mac; + + private PBMParameter(ASN1Sequence seq) + { + salt = ASN1OctetString.getInstance(seq.getObjectAt(0)); + owf = AlgorithmIdentifier.getInstance(seq.getObjectAt(1)); + iterationCount = ASN1Integer.getInstance(seq.getObjectAt(2)); + mac = AlgorithmIdentifier.getInstance(seq.getObjectAt(3)); + } + + public static PBMParameter getInstance(Object o) + { + if (o instanceof PBMParameter) + { + return (PBMParameter)o; + } + + if (o != null) + { + return new PBMParameter(ASN1Sequence.getInstance(o)); + } + + return null; + } + + public PBMParameter( + byte[] salt, + AlgorithmIdentifier owf, + int iterationCount, + AlgorithmIdentifier mac) + { + this(new DEROctetString(salt), owf, + new ASN1Integer(iterationCount), mac); + } + + public PBMParameter( + ASN1OctetString salt, + AlgorithmIdentifier owf, + ASN1Integer iterationCount, + AlgorithmIdentifier mac) + { + this.salt = salt; + this.owf = owf; + this.iterationCount = iterationCount; + this.mac = mac; + } + + public ASN1OctetString getSalt() + { + return salt; + } + + public AlgorithmIdentifier getOwf() + { + return owf; + } + + public ASN1Integer getIterationCount() + { + return iterationCount; + } + + public AlgorithmIdentifier getMac() + { + return mac; + } + + /** + * <pre> + * PBMParameter ::= SEQUENCE { + * salt OCTET STRING, + * -- note: implementations MAY wish to limit acceptable sizes + * -- of this string to values appropriate for their environment + * -- in order to reduce the risk of denial-of-service attacks + * owf AlgorithmIdentifier, + * -- AlgId for a One-Way Function (SHA-1 recommended) + * iterationCount INTEGER, + * -- number of times the OWF is applied + * -- note: implementations MAY wish to limit acceptable sizes + * -- of this integer to values appropriate for their environment + * -- in order to reduce the risk of denial-of-service attacks + * mac AlgorithmIdentifier + * -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11], + * } -- or HMAC [RFC2104, RFC2202]) + * </pre> + * @return a basic ASN.1 object representation. + */ + public ASN1Primitive toASN1Primitive() + { + ASN1EncodableVector v = new ASN1EncodableVector(); + + v.add(salt); + v.add(owf); + v.add(iterationCount); + v.add(mac); + + return new DERSequence(v); + } +} |