FileDocCategorySizeDatePackage
JCERSAPrivateCrtKey.javaAPI DocAndroid 1.5 API7313Wed May 06 22:41:06 BST 2009org.bouncycastle.jce.provider

JCERSAPrivateCrtKey

public class JCERSAPrivateCrtKey extends JCERSAPrivateKey implements RSAPrivateCrtKey
A provider representation for a RSA private key, with CRT factors included.

Fields Summary
private BigInteger
publicExponent
private BigInteger
primeP
private BigInteger
primeQ
private BigInteger
primeExponentP
private BigInteger
primeExponentQ
private BigInteger
crtCoefficient
Constructors Summary
JCERSAPrivateCrtKey(org.bouncycastle.crypto.params.RSAPrivateCrtKeyParameters key)
construct a private key from it's org.bouncycastle.crypto equivalent.

param
key the parameters object representing the private key.

        super(key);

        this.publicExponent = key.getPublicExponent();
        this.primeP = key.getP();
        this.primeQ = key.getQ();
        this.primeExponentP = key.getDP();
        this.primeExponentQ = key.getDQ();
        this.crtCoefficient = key.getQInv();
    
JCERSAPrivateCrtKey(RSAPrivateCrtKeySpec spec)
construct a private key from an RSAPrivateCrtKeySpec

param
spec the spec to be used in construction.

        this.modulus = spec.getModulus();
        this.publicExponent = spec.getPublicExponent();
        this.privateExponent = spec.getPrivateExponent();
        this.primeP = spec.getPrimeP();
        this.primeQ = spec.getPrimeQ();
        this.primeExponentP = spec.getPrimeExponentP();
        this.primeExponentQ = spec.getPrimeExponentQ();
        this.crtCoefficient = spec.getCrtCoefficient();
    
JCERSAPrivateCrtKey(RSAPrivateCrtKey key)
construct a private key from another RSAPrivateCrtKey.

param
key the object implementing the RSAPrivateCrtKey interface.

        this.modulus = key.getModulus();
        this.publicExponent = key.getPublicExponent();
        this.privateExponent = key.getPrivateExponent();
        this.primeP = key.getPrimeP();
        this.primeQ = key.getPrimeQ();
        this.primeExponentP = key.getPrimeExponentP();
        this.primeExponentQ = key.getPrimeExponentQ();
        this.crtCoefficient = key.getCrtCoefficient();
    
JCERSAPrivateCrtKey(org.bouncycastle.asn1.pkcs.PrivateKeyInfo info)
construct an RSA key from a private key info object.

        this(new RSAPrivateKeyStructure((ASN1Sequence)info.getPrivateKey()));
    
JCERSAPrivateCrtKey(org.bouncycastle.asn1.pkcs.RSAPrivateKeyStructure key)
construct an RSA key from a ASN.1 RSA private key object.

        this.modulus = key.getModulus();
        this.publicExponent = key.getPublicExponent();
        this.privateExponent = key.getPrivateExponent();
        this.primeP = key.getPrime1();
        this.primeQ = key.getPrime2();
        this.primeExponentP = key.getExponent1();
        this.primeExponentQ = key.getExponent2();
        this.crtCoefficient = key.getCoefficient();
    
Methods Summary
public booleanequals(java.lang.Object o)

        if (!(o instanceof RSAPrivateCrtKey))
        {
            return false;
        }

        if (o == this)
        {
            return true;
        }

        RSAPrivateCrtKey key = (RSAPrivateCrtKey)o;

        return this.getModulus().equals(key.getModulus())
         && this.getPublicExponent().equals(key.getPublicExponent())
         && this.getPrivateExponent().equals(key.getPrivateExponent())
         && this.getPrimeP().equals(key.getPrimeP())
         && this.getPrimeQ().equals(key.getPrimeQ())
         && this.getPrimeExponentP().equals(key.getPrimeExponentP())
         && this.getPrimeExponentQ().equals(key.getPrimeExponentQ())
         && this.getCrtCoefficient().equals(key.getCrtCoefficient());
    
public java.math.BigIntegergetCrtCoefficient()
return the CRT coefficient.

return
the CRT coefficient.

        return crtCoefficient;
    
public byte[]getEncoded()
Return a PKCS8 representation of the key. The sequence returned represents a full PrivateKeyInfo object.

return
a PKCS8 representation of the key.

        // BEGIN android-changed
        PrivateKeyInfo          info = new PrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.THE_ONE), new RSAPrivateKeyStructure(getModulus(), getPublicExponent(), getPrivateExponent(), getPrimeP(), getPrimeQ(), getPrimeExponentP(), getPrimeExponentQ(), getCrtCoefficient()).getDERObject());
        // END android-changed

        return info.getDEREncoded();
    
public java.lang.StringgetFormat()
return the encoding format we produce in getEncoded().

return
the encoding format we produce in getEncoded().

        return "PKCS#8";
    
public java.math.BigIntegergetPrimeExponentP()
return the prime exponent for P.

return
the prime exponent for P.

        return primeExponentP;
    
public java.math.BigIntegergetPrimeExponentQ()
return the prime exponent for Q.

return
the prime exponent for Q.

        return primeExponentQ;
    
public java.math.BigIntegergetPrimeP()
return the prime P.

return
the prime P.

        return primeP;
    
public java.math.BigIntegergetPrimeQ()
return the prime Q.

return
the prime Q.

        return primeQ;
    
public java.math.BigIntegergetPublicExponent()
return the public exponent.

return
the public exponent.

        return publicExponent;
    
public java.lang.StringtoString()

        StringBuffer    buf = new StringBuffer();
        String          nl = System.getProperty("line.separator");

        buf.append("RSA Private CRT Key").append(nl);
        buf.append("            modulus: ").append(this.getModulus().toString(16)).append(nl);
        buf.append("    public exponent: ").append(this.getPublicExponent().toString(16)).append(nl);
        buf.append("   private exponent: ").append(this.getPrivateExponent().toString(16)).append(nl);
        buf.append("             primeP: ").append(this.getPrimeP().toString(16)).append(nl);
        buf.append("             primeQ: ").append(this.getPrimeQ().toString(16)).append(nl);
        buf.append("     primeExponentP: ").append(this.getPrimeExponentP().toString(16)).append(nl);
        buf.append("     primeExponentQ: ").append(this.getPrimeExponentQ().toString(16)).append(nl);
        buf.append("     crtCoefficient: ").append(this.getCrtCoefficient().toString(16)).append(nl);

        return buf.toString();