public Class OpenSSLSignatureRawECDSA

Implements abstract java.security.SignatureSpi.engineGetParameter.

Doc from java.security.SignatureSpi.engineGetParameter.

Gets the value of the specified algorithm parameter. This method supplies a general-purpose mechanism through which it is possible to get the various parameters of this object. A parameter may be any settable parameter for the algorithm, such as a parameter size, or a source of random bits for signature generation (if appropriate), or an indication of whether to perform a specific but optional computation. A uniform algorithm-specific naming scheme for each parameter is desirable but left unspecified at this time.

Parameters

param:String

the string name of the parameter.

Returns:Object

the object that represents the parameter value, or null if there is none.

Annotations

@Override

@SuppressWarnings:deprecation

Exceptions

InvalidParameterException:

if param is an invalid parameter for this engine, or another exception occurs while trying to get this parameter.

Implements abstract java.security.SignatureSpi.engineInitSign.

Doc from java.security.SignatureSpi.engineInitSign.

Initializes this Signature object with the specified private key for signing operations.

Parameters

privateKey:PrivateKey

the private key of the identity whose signature will be generated.

Annotations

@Override

Exceptions

InvalidKeyException:

if the key is improperly encoded, parameters are missing, and so on.

Implements abstract java.security.SignatureSpi.engineInitVerify.

Doc from java.security.SignatureSpi.engineInitVerify.

Initializes this Signature object with the specified public key for verification operations.

Parameters

publicKey:PublicKey

the public key of the identity whose signature is going to be verified.

Annotations

@Override

Exceptions

InvalidKeyException:

if the key is improperly encoded, parameters are missing, and so on.

Implements abstract java.security.SignatureSpi.engineSetParameter.

Doc from java.security.SignatureSpi.engineSetParameter.

Sets the specified algorithm parameter to the specified value. This method supplies a general-purpose mechanism through which it is possible to set the various parameters of this object. A parameter may be any settable parameter for the algorithm, such as a parameter size, or a source of random bits for signature generation (if appropriate), or an indication of whether to perform a specific but optional computation. A uniform algorithm-specific naming scheme for each parameter is desirable but left unspecified at this time.

Parameters

param:String

the string identifier of the parameter.

value:Object

the parameter value.

Annotations

@Override

@SuppressWarnings:deprecation

Exceptions

InvalidParameterException:

if param is an invalid parameter for this Signature object, the parameter is already set and cannot be set again, a security exception occurs, and so on.

Implements abstract java.security.SignatureSpi.engineSign.

Doc from java.security.SignatureSpi.engineSign.

Returns the signature bytes of all the data updated so far. The format of the signature depends on the underlying signature scheme.

Returns:byte[]

the signature bytes of the signing operation's result.

Annotations

@Override

Exceptions

SignatureException:

if the engine is not initialized properly or if this signature algorithm is unable to process the input data provided.

Implements abstract java.security.SignatureSpi.engineUpdate.

Doc from java.security.SignatureSpi.engineUpdate.

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

Parameters

input:byte

the byte to use for the update.

Annotations

@Override

Implements abstract java.security.SignatureSpi.engineUpdate.

Doc from java.security.SignatureSpi.engineUpdate.

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

Parameters

input:byte[]

the array of bytes

offset:int

the offset to start from in the array of bytes

len:int

the number of bytes to use, starting at offset

Annotations

@Override

Implements abstract java.security.SignatureSpi.engineVerify.

Doc from java.security.SignatureSpi.engineVerify.

Verifies the passed-in signature.

Parameters

sigBytes:byte[]

the signature bytes to be verified.

Returns:boolean

true if the signature was verified, false if not.

Annotations

@Override

Exceptions

SignatureException:

if the engine is not initialized properly, the passed-in signature is improperly encoded or of the wrong type, if this signature algorithm is unable to process the input data provided, etc.