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org.bouncycastle.jcajce.provider.asymmetric.compositesignatures

public Class SignatureSpi

extends SignatureSpi
Class Inheritance
Known Direct Subclasses
org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA44_ECDSA_P256_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA44_Ed25519_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA44_RSA2048_PKCS15_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA44_RSA2048_PSS_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_ECDSA_brainpoolP256r1_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_ECDSA_P384_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_Ed25519_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_RSA3072_PKCS15_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_RSA3072_PSS_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_RSA4096_PKCS15_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA65_RSA4096_PSS_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA87_ECDSA_brainpoolP384r1_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA87_ECDSA_P384_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.HashMLDSA87_Ed448_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA44_ECDSA_P256_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA44_Ed25519_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA44_RSA2048_PKCS15_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA44_RSA2048_PSS_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_ECDSA_brainpoolP256r1_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_ECDSA_P384_SHA384, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_Ed25519_SHA512, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_RSA3072_PKCS15_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_RSA3072_PSS_SHA256, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_RSA4096_PKCS15_SHA384, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA65_RSA4096_PSS_SHA384, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA87_ECDSA_brainpoolP384r1_SHA384, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA87_ECDSA_P384_SHA384, org.bouncycastle.jcajce.provider.asymmetric.compositesignatures.SignatureSpi.MLDSA87_Ed448_SHA512
Imports
java.io.IOException, java.security.AlgorithmParameters, .GeneralSecurityException, .InvalidAlgorithmParameterException, .InvalidKeyException, .InvalidParameterException, .Key, .PrivateKey, .PublicKey, .Signature, .SignatureException, java.security.spec.AlgorithmParameterSpec, java.util.HashMap, .List, .Map, org.bouncycastle.asn1.ASN1BitString, .ASN1EncodableVector, .ASN1Encoding, .ASN1ObjectIdentifier, .ASN1Sequence, .DERBitString, .DERSequence, org.bouncycastle.asn1.nist.NISTObjectIdentifiers, org.bouncycastle.crypto.Digest, org.bouncycastle.crypto.digests.SHA256Digest, .SHA512Digest, org.bouncycastle.internal.asn1.misc.MiscObjectIdentifiers, org.bouncycastle.jcajce.CompositePrivateKey, .CompositePublicKey, org.bouncycastle.jcajce.spec.ContextParameterSpec, org.bouncycastle.jcajce.util.BCJcaJceHelper, .JcaJceHelper, org.bouncycastle.util.Exceptions
Signature class for composite signatures. Selected algorithm is set by the "subclasses" at the end of this file.

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static class
SignatureSpi.HashMLDSA44_ECDSA_P256_SHA256

public static class
SignatureSpi.HashMLDSA44_Ed25519_SHA512

public static class
SignatureSpi.HashMLDSA44_RSA2048_PKCS15_SHA256

public static class
SignatureSpi.HashMLDSA44_RSA2048_PSS_SHA256

public static class
SignatureSpi.HashMLDSA65_ECDSA_brainpoolP256r1_SHA512

public static class
SignatureSpi.HashMLDSA65_ECDSA_P384_SHA512

public static class
SignatureSpi.HashMLDSA65_Ed25519_SHA512

public static class
SignatureSpi.HashMLDSA65_RSA3072_PKCS15_SHA512

public static class
SignatureSpi.HashMLDSA65_RSA3072_PSS_SHA512

public static class
SignatureSpi.HashMLDSA65_RSA4096_PKCS15_SHA512

public static class
SignatureSpi.HashMLDSA65_RSA4096_PSS_SHA512

public static class
SignatureSpi.HashMLDSA87_ECDSA_brainpoolP384r1_SHA512

public static class
SignatureSpi.HashMLDSA87_ECDSA_P384_SHA512

public static class
SignatureSpi.HashMLDSA87_Ed448_SHA512

public static class
SignatureSpi.MLDSA44_ECDSA_P256_SHA256

public static class
SignatureSpi.MLDSA44_Ed25519_SHA512

public static class
SignatureSpi.MLDSA44_RSA2048_PKCS15_SHA256

public static class
SignatureSpi.MLDSA44_RSA2048_PSS_SHA256

public static class
SignatureSpi.MLDSA65_ECDSA_brainpoolP256r1_SHA256

public static class
SignatureSpi.MLDSA65_ECDSA_P384_SHA384

public static class
SignatureSpi.MLDSA65_Ed25519_SHA512

public static class
SignatureSpi.MLDSA65_RSA3072_PKCS15_SHA256

public static class
SignatureSpi.MLDSA65_RSA3072_PSS_SHA256

public static class
SignatureSpi.MLDSA65_RSA4096_PKCS15_SHA384

public static class
SignatureSpi.MLDSA65_RSA4096_PSS_SHA384

public static class
SignatureSpi.MLDSA87_ECDSA_brainpoolP384r1_SHA384

public static class
SignatureSpi.MLDSA87_ECDSA_P384_SHA384

public static class
SignatureSpi.MLDSA87_Ed448_SHA512

Field Summary

Modifier and TypeField and Description
private final ASN1ObjectIdentifier
algorithm

private static final Map<String, String>
canonicalNames

private final Signature[]
componentSignatures

private Key
compositeKey

private ContextParameterSpec
contextSpec

private final byte[]
domain

private AlgorithmParameters
engineParams

private final byte[]
hashOID

private final JcaJceHelper
helper

private static final String
ML_DSA_44

private static final String
ML_DSA_65

private static final String
ML_DSA_87

private final Digest
preHashDigest

private boolean
unprimed

Inherited from java.security.SignatureSpi:
appRandom

Constructor Summary

AccessConstructor and Description
pack-priv
SignatureSpi(ASN1ObjectIdentifier algorithm)

pack-priv
SignatureSpi(ASN1ObjectIdentifier algorithm, Digest preHashDigest, ASN1ObjectIdentifier preHashOid)

Method Summary

Modifier and TypeMethod and Description
private void
baseSigInit()

protected Object
engineGetParameter(String
the string name of the parameter.
s)

Implements abstract java.security.SignatureSpi.engineGetParameter.

Gets the value of the specified algorithm parameter.

protected final 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
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
algorithmParameterSpec)

Overrides java.security.SignatureSpi.engineSetParameter.

Initializes this Signature object with the specified parameter values.

protected void
engineSetParameter(String
the string identifier of the parameter.
s, Object
the parameter value.
o)

Implements abstract java.security.SignatureSpi.engineSetParameter.

Sets the specified algorithm parameter to the specified value.

protected byte[]

Returns:

composite signature bytes
engineSign()

Implements abstract java.security.SignatureSpi.engineSign.

Method which calculates each component signature and constructs a composite signature which is a sequence of BIT STRINGs https://www.ietf.org/archive/id/draft-ounsworth-pq-composite-sigs-13.html#name-compositesignaturevalue

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
bytes, 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.
signature)

Implements abstract java.security.SignatureSpi.engineVerify.

Corresponding verification method to the engineSign method.

private String
getCanonicalName(String baseName)

private void
processPreHashedMessage()

private void
setSigParameter(Signature targetSig, String targetSigName, List<String> names, List<AlgorithmParameterSpec> specs)

private void
sigInitSign()

private void
sigInitVerify()

Inherited from java.security.SignatureSpi:
cloneengineInitSignengineSignengineUpdateengineVerify