Class ECDSAUtils
- java.lang.Object
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- org.apache.xml.security.algorithms.implementations.ECDSAUtils
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public final class ECDSAUtils extends Object
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
ECDSAUtils.ECCurveDefinition
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static byte[]
convertASN1toXMLDSIG(byte[] asn1Bytes)
Converts an ASN.1 ECDSA value to a XML Signature ECDSA Value.static byte[]
convertXMLDSIGtoASN1(byte[] xmldsigBytes)
Converts a XML Signature ECDSA Value to an ASN.1 DSA value.static ECPoint
decodePoint(byte[] encodedBytes, EllipticCurve elliptiCcurve)
static byte[]
encodePoint(ECPoint ecPoint, EllipticCurve ellipticCurve)
static ECDSAUtils.ECCurveDefinition
getECCurveDefinition(String oid)
static String
getOIDFromPublicKey(ECPublicKey ecPublicKey)
static byte[]
stripLeadingZeros(byte[] bytes)
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Method Detail
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convertASN1toXMLDSIG
public static byte[] convertASN1toXMLDSIG(byte[] asn1Bytes) throws IOException
Converts an ASN.1 ECDSA value to a XML Signature ECDSA Value. The JAVA JCE ECDSA Signature algorithm creates ASN.1 encoded (r,s) value pairs; the XML Signature requires the core BigInteger values.- Parameters:
asn1Bytes
-- Returns:
- the decode bytes
- Throws:
IOException
- See Also:
- 6.4.1 DSA, 3.3. ECDSA Signatures
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convertXMLDSIGtoASN1
public static byte[] convertXMLDSIGtoASN1(byte[] xmldsigBytes) throws IOException
Converts a XML Signature ECDSA Value to an ASN.1 DSA value. The JAVA JCE ECDSA Signature algorithm creates ASN.1 encoded (r,s) value pairs; the XML Signature requires the core BigInteger values.- Parameters:
xmldsigBytes
-- Returns:
- the encoded ASN.1 bytes
- Throws:
IOException
- See Also:
- 6.4.1 DSA, 3.3. ECDSA Signatures
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getOIDFromPublicKey
public static String getOIDFromPublicKey(ECPublicKey ecPublicKey)
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getECCurveDefinition
public static ECDSAUtils.ECCurveDefinition getECCurveDefinition(String oid)
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encodePoint
public static byte[] encodePoint(ECPoint ecPoint, EllipticCurve ellipticCurve)
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decodePoint
public static ECPoint decodePoint(byte[] encodedBytes, EllipticCurve elliptiCcurve)
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stripLeadingZeros
public static byte[] stripLeadingZeros(byte[] bytes)
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