Package com.microsoft.azure.keyvault.cryptography

Class SignatureEncoding

java.lang.Object

com.microsoft.azure.keyvault.cryptography.SignatureEncoding

public final class SignatureEncoding
extends Object

Method Summary

Modifier and Type	Method	Description
static byte[]	fromAsn1Der(byte[] asn1DerSignature, Ecdsa algorithm)	Converts an ASN.1 DER encoded ECDSA signature to a raw signature in the form R|S
static byte[]	fromAsn1Der(byte[] asn1DerSignature, String algorithm)	Converts an ASN.1 DER encoded ECDSA signature to a raw signature in the form R|S
static byte[]	toAsn1Der(byte[] signature, Ecdsa algorithm)	Converts a raw ECDSA signature in the form R|S to an ASN.1 DER encoded signature.
static byte[]	toAsn1Der(byte[] signature, String algorithm)	Converts a raw ECDSA signature in the form R|S to an ASN.1 DER encoded signature.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

fromAsn1Der

public static byte[] fromAsn1Der(byte[] asn1DerSignature,
                                 String algorithm)
                          throws NoSuchAlgorithmException

Converts an ASN.1 DER encoded ECDSA signature to a raw signature in the form R|S

Parameters:

asn1DerSignature - An ASN.1 DER encoded signature

algorithm - The algorithm used to produce the given ASN.1 DER encoded signature

Returns:

The raw format of the given ASN.1 DER encoded signature in the form R|S

Throws:

NoSuchAlgorithmException

fromAsn1Der

public static byte[] fromAsn1Der(byte[] asn1DerSignature,
                                 Ecdsa algorithm)

Converts an ASN.1 DER encoded ECDSA signature to a raw signature in the form R|S

Parameters:

asn1DerSignature - An ASN.1 DER encoded signature

algorithm - The algorithm used to produce the given ASN.1 DER encoded signature

Returns:

The raw format of the given ASN.1 DER encoded signature in the form R|S

toAsn1Der

public static byte[] toAsn1Der(byte[] signature,
                               String algorithm)
                        throws NoSuchAlgorithmException

Converts a raw ECDSA signature in the form R|S to an ASN.1 DER encoded signature.

Parameters:

signature - A raw ECDSA signature in the form R|S.

algorithm - The algorithm used to produce the given signature.

Returns:

The ASN.1 DER encoded signature of the given signature.

Throws:

NoSuchAlgorithmException

toAsn1Der

public static byte[] toAsn1Der(byte[] signature,
                               Ecdsa algorithm)

Converts a raw ECDSA signature in the form R|S to an ASN.1 DER encoded signature.

Parameters:

signature - A raw ECDSA signature in the form R|S.

algorithm - The algorithm used to produce the given signature.

Returns:

The ASN.1 DER encoded signature of the given signature.