Package org.bouncycastle.bcpg

Class SignaturePacket

java.lang.Object

org.bouncycastle.bcpg.Packet

org.bouncycastle.bcpg.ContainedPacket

org.bouncycastle.bcpg.SignaturePacket

All Implemented Interfaces:

PacketTags, PublicKeyAlgorithmTags, org.bouncycastle.util.Encodable

public class SignaturePacket
extends ContainedPacket
implements PublicKeyAlgorithmTags

generic signature packet

Field Summary

Fields

Modifier and Type	Field	Description
static final int	VERSION_2
static final int	VERSION_3
static final int	VERSION_4
static final int	VERSION_5
static final int	VERSION_6

Fields inherited from interface org.bouncycastle.bcpg.PacketTags

AEAD_ENC_DATA, COMPRESSED_DATA, EXPERIMENTAL_1, EXPERIMENTAL_2, EXPERIMENTAL_3, EXPERIMENTAL_4, LITERAL_DATA, MARKER, MOD_DETECTION_CODE, ONE_PASS_SIGNATURE, PADDING, PUBLIC_KEY, PUBLIC_KEY_ENC_SESSION, PUBLIC_SUBKEY, RESERVED, SECRET_KEY, SECRET_SUBKEY, SIGNATURE, SYM_ENC_INTEGRITY_PRO, SYMMETRIC_KEY_ENC, SYMMETRIC_KEY_ENC_SESSION, TRUST, USER_ATTRIBUTE, USER_ID

Fields inherited from interface org.bouncycastle.bcpg.PublicKeyAlgorithmTags

AEDH, AEDSA, DIFFIE_HELLMAN, DSA, EC, ECDH, ECDSA, Ed25519, Ed448, EDDSA, EDDSA_LEGACY, ELGAMAL_ENCRYPT, ELGAMAL_GENERAL, EXPERIMENTAL_1, EXPERIMENTAL_10, EXPERIMENTAL_11, EXPERIMENTAL_2, EXPERIMENTAL_3, EXPERIMENTAL_4, EXPERIMENTAL_5, EXPERIMENTAL_6, EXPERIMENTAL_7, EXPERIMENTAL_8, EXPERIMENTAL_9, RSA_ENCRYPT, RSA_GENERAL, RSA_SIGN, X25519, X448

Constructor Summary

Constructors

Constructor	Description
SignaturePacket(int version, int signatureType, long keyID, int keyAlgorithm, int hashAlgorithm, long creationTime, byte[] fingerPrint, MPInteger[] signature)	Generate a version 2/3 signature packet.
SignaturePacket(int version, int signatureType, long keyID, int keyAlgorithm, int hashAlgorithm, SignatureSubpacket[] hashedData, SignatureSubpacket[] unhashedData, byte[] fingerPrint, byte[] signatureEncoding, byte[] salt)
SignaturePacket(int version, int signatureType, long keyID, int keyAlgorithm, int hashAlgorithm, SignatureSubpacket[] hashedData, SignatureSubpacket[] unhashedData, byte[] fingerPrint, MPInteger[] signature)
SignaturePacket(int version, int signatureType, long keyID, int keyAlgorithm, int hashAlgorithm, SignatureSubpacket[] hashedData, SignatureSubpacket[] unhashedData, byte[] fingerPrint, MPInteger[] signature, byte[] salt)
SignaturePacket(int signatureType, long keyID, int keyAlgorithm, int hashAlgorithm, SignatureSubpacket[] hashedData, SignatureSubpacket[] unhashedData, byte[] fingerPrint, MPInteger[] signature)	Generate a version 4 signature packet.

Method Summary

Modifier and Type	Method	Description
void	encode(BCPGOutputStream out)
static SignaturePacket	fromByteArray(byte[] data)
long	getCreationTime()	Return the creation time of the signature in milli-seconds.
byte[]	getFingerPrint()	Return the signature's fingerprint.
int	getHashAlgorithm()	return the hashAlgorithm tag
SignatureSubpacket[]	getHashedSubPackets()
int	getKeyAlgorithm()	return the encryption algorithm tag
long	getKeyID()	return the keyID
byte[]	getSalt()	Return the signature's salt.
MPInteger[]	getSignature()	return the signature as a set of integers - note this is normalised to be the ASN.1 encoding of what appears in the signature packet.
byte[]	getSignatureBytes()	Return the byte encoding of the signature section.
byte[]	getSignatureTrailer()	return the signature trailer that must be included with the data to reconstruct the signature
int	getSignatureType()	return the signature type.
SignatureSubpacket[]	getUnhashedSubPackets()
int	getVersion()	get the version number

Methods inherited from class org.bouncycastle.bcpg.ContainedPacket

getEncoded, getEncoded

Methods inherited from class org.bouncycastle.bcpg.Packet

getPacketTag, hasNewPacketFormat, isCritical

Methods inherited from class java.lang.Object

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

Field Details

VERSION_2

public static final int VERSION_2

See Also:

• Constant Field Values

VERSION_3

public static final int VERSION_3

See Also:

• Constant Field Values

VERSION_4

public static final int VERSION_4

See Also:

• Constant Field Values

VERSION_5

public static final int VERSION_5

See Also:

• Constant Field Values

VERSION_6

public static final int VERSION_6

See Also:

• Constant Field Values

Constructor Details

SignaturePacket

public SignaturePacket(int signatureType,
 long keyID,
 int keyAlgorithm,
 int hashAlgorithm,
 SignatureSubpacket[] hashedData,
 SignatureSubpacket[] unhashedData,
 byte[] fingerPrint,
 MPInteger[] signature)

Generate a version 4 signature packet.

Parameters:

signatureType -

keyAlgorithm -

hashAlgorithm -

hashedData -

unhashedData -

fingerPrint -

signature -

SignaturePacket

public SignaturePacket(int version,
 int signatureType,
 long keyID,
 int keyAlgorithm,
 int hashAlgorithm,
 long creationTime,
 byte[] fingerPrint,
 MPInteger[] signature)

Generate a version 2/3 signature packet.

Parameters:

signatureType -

keyAlgorithm -

hashAlgorithm -

fingerPrint -

signature -

SignaturePacket

public SignaturePacket(int version,
 int signatureType,
 long keyID,
 int keyAlgorithm,
 int hashAlgorithm,
 SignatureSubpacket[] hashedData,
 SignatureSubpacket[] unhashedData,
 byte[] fingerPrint,
 MPInteger[] signature)

SignaturePacket

public SignaturePacket(int version,
 int signatureType,
 long keyID,
 int keyAlgorithm,
 int hashAlgorithm,
 SignatureSubpacket[] hashedData,
 SignatureSubpacket[] unhashedData,
 byte[] fingerPrint,
 byte[] signatureEncoding,
 byte[] salt)

SignaturePacket

public SignaturePacket(int version,
 int signatureType,
 long keyID,
 int keyAlgorithm,
 int hashAlgorithm,
 SignatureSubpacket[] hashedData,
 SignatureSubpacket[] unhashedData,
 byte[] fingerPrint,
 MPInteger[] signature,
 byte[] salt)

Method Details

getVersion

public int getVersion()

get the version number

getSignatureType

public int getSignatureType()

return the signature type.

getKeyID

public long getKeyID()

return the keyID

Returns:

the keyID that created the signature.

getFingerPrint

public byte[] getFingerPrint()

Return the signature's fingerprint.

Returns:

fingerprint (digest prefix) of the signature

getSalt

public byte[] getSalt()

Return the signature's salt. Only for v6 signatures.

Returns:

salt

getSignatureTrailer

public byte[] getSignatureTrailer()

return the signature trailer that must be included with the data to reconstruct the signature

Returns:

byte[]

getKeyAlgorithm

public int getKeyAlgorithm()

return the encryption algorithm tag

getHashAlgorithm

public int getHashAlgorithm()

return the hashAlgorithm tag

getSignature

public MPInteger[] getSignature()

return the signature as a set of integers - note this is normalised to be the ASN.1 encoding of what appears in the signature packet. Note, that Ed25519 and Ed448 returns null, as the raw signature is stored in signatureEncoding only. For those, use getSignatureBytes() instead.

getSignatureBytes

public byte[] getSignatureBytes()

Return the byte encoding of the signature section.

Returns:

uninterpreted signature bytes.

getHashedSubPackets

public SignatureSubpacket[] getHashedSubPackets()

getUnhashedSubPackets

public SignatureSubpacket[] getUnhashedSubPackets()

getCreationTime

public long getCreationTime()

Return the creation time of the signature in milli-seconds.

Returns:

the creation time in millis

encode

public void encode(BCPGOutputStream out)
            throws IOException

Specified by:

encode in class ContainedPacket

Throws:

IOException

fromByteArray

public static SignaturePacket fromByteArray(byte[] data)
                                     throws IOException

Throws:

IOException