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Class iaik.security.rsa.SSLRSASignature

java.lang.Object
   |
   +----java.security.Signature
           |
           +----iaik.security.rsa.SSLRSASignature

This class implements a special form of a RSA Signature as defined in SSL v3.0.

engineGetParameter(String): SPI: Gets the value of the specified algorithm parameter.
engineInitSign(PrivateKey): SPI:Initializes this signature object with the specified private key for signing operations.
engineInitVerify(PublicKey): SPI: Initializes this signature object with the specified public key for verification operations.
engineSetParameter(String, Object): SPI: Sets the specified algorithm parameter to the specified value.
engineSign(): SPI: Returns the signature bytes of all the data updated so far.
engineUpdate(byte): SPI: Updates the data to be signed or verified using the specified byte.
engineUpdate(byte[], int, int): SPI: Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.
engineVerify(byte[]): Verifies the signature of a message defined in SSL v3.0.

md5

 protected MessageDigest md5

sha

 protected MessageDigest sha

SSLRSASignature

 public SSLRSASignature() throws NoSuchAlgorithmException

The default constructor. Creates a new SSL/RSA Signature object.

Throws: NoSuchAlgorithmException: if there is no implementation for MD5 or SHA

 protected void engineInitVerify(PublicKey pk) throws InvalidKeyException

SPI: Initializes this signature object with the specified public key for verification operations.

Parameters:: publicKey - a public key.
Throws: InvalidKeyException: if the key is improperly encoded, parameters are missing, and so on.
Overrides:: engineInitVerify in class Signature

 protected void engineInitSign(PrivateKey pk) throws InvalidKeyException

SPI:Initializes this signature object with the specified private key for signing operations.

Parameters:: privateKey - a private key.
Throws: InvalidKeyException: if the key is improperly encoded, parameters are missing, and so on.
Overrides:: engineInitSign in class Signature

 protected byte[] engineSign() throws SignatureException

SPI: Returns the signature bytes of all the data updated so far. The signature is returned as defined in SSL v3.0.

Returns:: the signature bytes of the signing operation's result.
Throws: SignatureException: if the signature is not initialized properly or an other problem occurs.
Overrides:: engineSign in class Signature

 protected boolean engineVerify(byte sigBytes[]) throws SignatureException

Verifies the signature of a message defined in SSL v3.0.

Parameters:: sigBytes - the RSA encrypted digest
Returns:: true if signature is OK
Throws: SignatureException: if the signature is not initialized properly, or it is improperly encoded or of the wrong type, etc.
Overrides:: engineVerify in class Signature

 protected void engineUpdate(byte b)

SPI: Updates the data to be signed or verified using the specified byte.

 protected void engineUpdate(byte b[],
                             int off,
                             int len)

SPI: Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.

Parameters:: data - the array of bytes.; off - the offset to start from in the array of bytes.; len - the number of bytes to use, starting at offset.
Overrides:: engineUpdate in class Signature

 protected void engineSetParameter(String param,
                                   Object value) throws InvalidParameterException

SPI: Sets the specified algorithm parameter to the specified value. This method is not implemented.

 protected Object engineGetParameter(String param) throws InvalidParameterException

SPI: Gets the value of the specified algorithm parameter. This method is not implemented.

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