diff options
Diffstat (limited to 'libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldElement.java')
-rw-r--r-- | libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldElement.java | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldElement.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldElement.java deleted file mode 100644 index dd5b4dffe..000000000 --- a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldElement.java +++ /dev/null @@ -1,64 +0,0 @@ -package org.spongycastle.asn1.x9; - -import java.math.BigInteger; - -import org.spongycastle.asn1.ASN1Object; -import org.spongycastle.asn1.ASN1OctetString; -import org.spongycastle.asn1.ASN1Primitive; -import org.spongycastle.asn1.DEROctetString; -import org.spongycastle.math.ec.ECFieldElement; - -/** - * class for processing an FieldElement as a DER object. - */ -public class X9FieldElement - extends ASN1Object -{ - protected ECFieldElement f; - - private static X9IntegerConverter converter = new X9IntegerConverter(); - - public X9FieldElement(ECFieldElement f) - { - this.f = f; - } - - public X9FieldElement(BigInteger p, ASN1OctetString s) - { - this(new ECFieldElement.Fp(p, new BigInteger(1, s.getOctets()))); - } - - public X9FieldElement(int m, int k1, int k2, int k3, ASN1OctetString s) - { - this(new ECFieldElement.F2m(m, k1, k2, k3, new BigInteger(1, s.getOctets()))); - } - - public ECFieldElement getValue() - { - return f; - } - - /** - * Produce an object suitable for an ASN1OutputStream. - * <pre> - * FieldElement ::= OCTET STRING - * </pre> - * <p> - * <ol> - * <li> if <i>q</i> is an odd prime then the field element is - * processed as an Integer and converted to an octet string - * according to x 9.62 4.3.1.</li> - * <li> if <i>q</i> is 2<sup>m</sup> then the bit string - * contained in the field element is converted into an octet - * string with the same ordering padded at the front if necessary. - * </li> - * </ol> - */ - public ASN1Primitive toASN1Primitive() - { - int byteCount = converter.getByteLength(f); - byte[] paddedBigInteger = converter.integerToBytes(f.toBigInteger(), byteCount); - - return new DEROctetString(paddedBigInteger); - } -} |