Class KeyUtil

java.lang.Object

org.kopi.ebics.certificate.KeyUtil

public final class KeyUtil
extends Object

Some key utilities

Method Summary

Modifier and Type	Method	Description
static byte[]	getKeyDigest(RSAPublicKey publicKey)	Returns the digest value of a given public key.
static KeyPair	makeKeyPair(int keyLen)	Generates a KeyPair in RSA format.

Methods inherited from class Object

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

Method Details

makeKeyPair

public static KeyPair makeKeyPair(int keyLen)
                           throws NoSuchAlgorithmException

Generates a KeyPair in RSA format.

Parameters:

keyLen - - key size

Returns:

KeyPair the key pair

Throws:

NoSuchAlgorithmException

getKeyDigest

public static byte[] getKeyDigest(RSAPublicKey publicKey)
                           throws EbicsException

Returns the digest value of a given public key.

In Version “H003” of the EBICS protocol the ES of the financial:

The SHA-256 hash values of the financial institution's public keys for X002 and E002 are composed by concatenating the exponent with a blank character and the modulus in hexadecimal representation (using lower case letters) without leading zero (as to the hexadecimal representation). The resulting string has to be converted into a byte array based on US ASCII code.

Parameters:

publicKey - the public key

Returns:

the digest value

Throws:

EbicsException