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org.bouncycastle.jcajce.provider

pack-priv Class BaseSignature

extends SignatureSpi
implements PKCSObjectIdentifiers, X509ObjectIdentifiers
Class Inheritance
All Implemented Interfaces
org.bouncycastle.asn1.x509.X509ObjectIdentifiers, org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers
Imports
java.security.AlgorithmParameters, .InvalidAlgorithmParameterException, .InvalidKeyException, .PrivateKey, .PublicKey, .SecureRandom, .SignatureException, .SignatureSpi, java.security.spec.AlgorithmParameterSpec, .MGF1ParameterSpec, .PSSParameterSpec, org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers, org.bouncycastle.asn1.x509.X509ObjectIdentifiers, org.bouncycastle.crypto.Algorithm, .AsymmetricKey, .AsymmetricPrivateKey, .AsymmetricPublicKey, .OutputSigner, .OutputVerifier, .Parameters, .SignatureOperatorFactory, .UpdateOutputStream, org.bouncycastle.crypto.fips.FipsAlgorithm, .FipsDigestAlgorithm, .FipsRSA

Field Summary

Modifier and TypeField and Description
protected UpdateOutputStream
dataStream

protected AlgorithmParameters
engineParams

private final BouncyCastleFipsProvider
fipsProvider

protected AsymmetricKey
key

private final SignatureOperatorFactory<T extends Parameters>
operatorFactory

private final AlgorithmParameterSpec
originalSpec

protected Parameters
parameters

protected AlgorithmParameterSpec
paramSpec

private final PrivateKeyConverter<T extends AsymmetricPrivateKey>
privateKeyConverter

private final PublicKeyConverter<T extends AsymmetricPublicKey>
publicKeyConverter

protected OutputSigner<T extends Parameters>
signer

private static final byte
TRAILER_IMPLICIT

protected OutputVerifier<T extends Parameters>
verifier

Inherited from java.security.SignatureSpi:
appRandom

Constructor Summary

AccessConstructor and Description
protected
BaseSignature(BouncyCastleFipsProvider fipsProvider, SignatureOperatorFactory<T extends Parameters> operatorFactory, PublicKeyConverter<T extends AsymmetricPublicKey> publicKeyConverter, PrivateKeyConverter<T extends AsymmetricPrivateKey> privateKeyConverter, Parameters parameters)

protected
BaseSignature(BouncyCastleFipsProvider fipsProvider, SignatureOperatorFactory<T extends Parameters> operatorFactory, PublicKeyConverter<T extends AsymmetricPublicKey> publicKeyConverter, PrivateKeyConverter<T extends AsymmetricPrivateKey> privateKeyConverter, Parameters parameters, AlgorithmParameterSpec paramSpec)

Method Summary

Modifier and TypeMethod and Description
protected Object
engineGetParameter(String
the string name of the parameter.
param)

Implements abstract java.security.SignatureSpi.engineGetParameter.

Deprecated replaced with engineGetParameters()
Gets the value of the specified algorithm parameter.
protected AlgorithmParameters
engineGetParameters()

Overrides java.security.SignatureSpi.engineGetParameters.

Returns the parameters used with this Signature object.
protected void
engineInitSign(PrivateKey
the private key of the identity whose signature will be generated.
privateKey)

Implements abstract java.security.SignatureSpi.engineInitSign.

Initializes this Signature object with the specified private key for signing operations.
protected void
engineInitSign(PrivateKey
the private key of the identity whose signature will be generated.
privateKey, SecureRandom
the source of randomness
random)

Overrides java.security.SignatureSpi.engineInitSign.

Initializes this Signature object with the specified private key and source of randomness for signing operations.
protected void
engineInitVerify(PublicKey
the public key of the identity whose signature is going to be verified.
publicKey)

Implements abstract java.security.SignatureSpi.engineInitVerify.

Initializes this Signature object with the specified public key for verification operations.
protected void
engineSetParameter(AlgorithmParameterSpec
the parameters
params)

Overrides java.security.SignatureSpi.engineSetParameter.

Initializes this Signature object with the specified parameter values.
protected void
engineSetParameter(String
the string identifier of the parameter.
param, Object
the parameter value.
value)

Implements abstract java.security.SignatureSpi.engineSetParameter.

Deprecated replaced with engineSetParameter(java.security.spec.AlgorithmParameterSpec)
Sets the specified algorithm parameter to the specified value.
protected byte[]
engineSign()

Implements abstract java.security.SignatureSpi.engineSign.

Returns the signature bytes of all the data updated so far.
protected void
engineUpdate(byte
the byte to use for the update.
b)

Implements abstract java.security.SignatureSpi.engineUpdate.

Updates the data to be signed or verified using the specified byte.
protected void
engineUpdate(byte[]
the array of bytes
b, int
the offset to start from in the array of bytes
off, int
the number of bytes to use, starting at offset
len)

Implements abstract java.security.SignatureSpi.engineUpdate.

Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.
protected boolean
engineVerify(byte[]
the signature bytes to be verified.
sigBytes)

Implements abstract java.security.SignatureSpi.engineVerify.

Verifies the passed-in signature.
private byte
getPssTrailer(int trailerField)

Inherited from java.security.SignatureSpi:
cloneengineSignengineUpdateengineVerify

Field Detail

dataStreamback to summary
protected UpdateOutputStream dataStream
engineParamsback to summary
protected AlgorithmParameters engineParams
fipsProviderback to summary
private final BouncyCastleFipsProvider fipsProvider
keyback to summary
protected AsymmetricKey key
operatorFactoryback to summary
private final SignatureOperatorFactory<T extends Parameters> operatorFactory
originalSpecback to summary
private final AlgorithmParameterSpec originalSpec
parametersback to summary
protected Parameters parameters
paramSpecback to summary
protected AlgorithmParameterSpec paramSpec
privateKeyConverterback to summary
private final PrivateKeyConverter<T extends AsymmetricPrivateKey> privateKeyConverter
publicKeyConverterback to summary
private final PublicKeyConverter<T extends AsymmetricPublicKey> publicKeyConverter
signerback to summary
protected OutputSigner<T extends Parameters> signer
TRAILER_IMPLICITback to summary
private static final byte TRAILER_IMPLICIT
verifierback to summary
protected OutputVerifier<T extends Parameters> verifier

Constructor Detail

BaseSignatureback to summary
protected BaseSignature(BouncyCastleFipsProvider fipsProvider, SignatureOperatorFactory<T extends Parameters> operatorFactory, PublicKeyConverter<T extends AsymmetricPublicKey> publicKeyConverter, PrivateKeyConverter<T extends AsymmetricPrivateKey> privateKeyConverter, Parameters parameters)
BaseSignatureback to summary
protected BaseSignature(BouncyCastleFipsProvider fipsProvider, SignatureOperatorFactory<T extends Parameters> operatorFactory, PublicKeyConverter<T extends AsymmetricPublicKey> publicKeyConverter, PrivateKeyConverter<T extends AsymmetricPrivateKey> privateKeyConverter, Parameters parameters, AlgorithmParameterSpec paramSpec)

Method Detail

engineGetParameterback to summary
protected Object engineGetParameter(String param)

Implements abstract java.security.SignatureSpi.engineGetParameter.

Doc from java.security.SignatureSpi.engineGetParameter.

Deprecated

replaced with engineGetParameters()

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.

engineGetParametersback to summary
protected AlgorithmParameters engineGetParameters()

Overrides java.security.SignatureSpi.engineGetParameters.

Doc from java.security.SignatureSpi.engineGetParameters.

Returns the parameters used with this Signature object.

The returned parameters may be the same that were used to initialize this Signature object, or may contain additional default or random parameter values used by the underlying signature scheme. If the required parameters were not supplied and can be generated by the Signature object, the generated parameters are returned; otherwise null is returned.

However, if the signature scheme does not support returning the parameters as AlgorithmParameters, null is always returned.

Returns:AlgorithmParameters

the parameters used with this Signature object, or null

engineInitSignback to summary
protected void engineInitSign(PrivateKey privateKey) throws InvalidKeyException

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.

Exceptions
InvalidKeyException:
if the key is improperly encoded, parameters are missing, and so on.
engineInitSignback to summary
protected void engineInitSign(PrivateKey privateKey, SecureRandom random) throws InvalidKeyException

Overrides java.security.SignatureSpi.engineInitSign.

Doc from java.security.SignatureSpi.engineInitSign.

Initializes this Signature object with the specified private key and source of randomness for signing operations.

This concrete method has been added to this previously-defined abstract class. (For backwards compatibility, it cannot be abstract.)

Parameters
privateKey:PrivateKey

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

random:SecureRandom

the source of randomness

Exceptions
InvalidKeyException:
if the key is improperly encoded, parameters are missing, and so on.
engineInitVerifyback to summary
protected void engineInitVerify(PublicKey publicKey) throws InvalidKeyException

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.

Exceptions
InvalidKeyException:
if the key is improperly encoded, parameters are missing, and so on.
engineSetParameterback to summary
protected void engineSetParameter(AlgorithmParameterSpec params) throws InvalidAlgorithmParameterException

Overrides java.security.SignatureSpi.engineSetParameter.

Doc from java.security.SignatureSpi.engineSetParameter.

Initializes this Signature object with the specified parameter values.

Parameters
params:AlgorithmParameterSpec

the parameters

Exceptions
InvalidAlgorithmParameterException:
if this method is overridden by a provider and the given parameters are inappropriate for this Signature object
engineSetParameterback to summary
protected void engineSetParameter(String param, Object value)

Implements abstract java.security.SignatureSpi.engineSetParameter.

Doc from java.security.SignatureSpi.engineSetParameter.

Deprecated

replaced with engineSetParameter(java.security.spec.AlgorithmParameterSpec)

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.

engineSignback to summary
protected byte[] engineSign() throws SignatureException

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.

Exceptions
SignatureException:
if the engine is not initialized properly or if this signature algorithm is unable to process the input data provided.
engineUpdateback to summary
protected void engineUpdate(byte b) throws SignatureException

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
b:byte

the byte to use for the update.

Exceptions
SignatureException:
if the engine is not initialized properly.
engineUpdateback to summary
protected void engineUpdate(byte[] b, int off, int len) throws SignatureException

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
b:byte[]

the array of bytes

off:int

the offset to start from in the array of bytes

len:int

the number of bytes to use, starting at offset

Exceptions
SignatureException:
if the engine is not initialized properly
engineVerifyback to summary
protected boolean engineVerify(byte[] sigBytes) throws SignatureException

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.

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.
getPssTrailerback to summary
private byte getPssTrailer(int trailerField)