ECSignature

java.lang.Object
- de.cardcontact.opencard.eac.cvc.ECSignature

public class ECSignature
extends java.lang.Object

Constructor Summary

Constructors
Constructor Description

ECSignature()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static byte[]`	`rewrapSignature(byte[] signature)`	Rewrap a signature that contains redundant 00 bytes in the encoded integer
`static byte[]`	`unwrapSignature(byte[] signature, int size)`
`static byte[]`	`wrapSignature(byte[] signature)`	Wrap an ECDSA signature in the format r \|\| s into a TLV encoding as defined by RFC 3279

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ECSignature
```
public ECSignature()
```
- Method Detail
  - wrapSignature
```
public static byte[] wrapSignature(byte[] signature)
```
    Wrap an ECDSA signature in the format r || s into a TLV encoding as defined by RFC 3279
    
    Parameters:
    
    signature - containing the concatenation of r and s as unsigned integer values
    
    Returns:
    
    ASN.1 SEQUENCE objects containing two signed integer r and s
    
    Throws:
    
    TLVEncodingException
  - unwrapSignature
```
public static byte[] unwrapSignature(byte[] signature,
                                     int size)
```
  - rewrapSignature
```
public static byte[] rewrapSignature(byte[] signature)
```
    Rewrap a signature that contains redundant 00 bytes in the encoded integer
    
    Parameters:
    
    signature - the TLV encoded signature
    
    Returns:
    
    the rewrapped signature