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Bouncy Castle Cryptography Library 1.81 | |||||||||
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java.lang.Objectorg.bouncycastle.bcpg.Packet
org.bouncycastle.bcpg.ContainedPacket
org.bouncycastle.bcpg.OnePassSignaturePacket
One-Pass-Signature packet.
OPS packets are used to enable verification of signed messages in one-pass by providing necessary metadata
about the signed data up front, so the consumer can start processing the signed data without needing
to process the signature packet at the end of the data stream first.
There are two versions of this packet currently defined.
Version 3 OPS packets are used with SignaturePackets
of version 3 and 4.
Version 6 OPS packets are used with SignaturePackets
of version 6.
It is not clear to me, which version of the OPS packet is intended to be used with version 5 signatures.
Field Summary | |
static int |
VERSION_3
|
static 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 |
Constructor Summary | |
OnePassSignaturePacket(int sigType,
int hashAlgorithm,
int keyAlgorithm,
byte[] salt,
byte[] fingerprint,
boolean isNested)
Create a version 6 OnePassSignaturePacket . |
|
OnePassSignaturePacket(int sigType,
int hashAlgorithm,
int keyAlgorithm,
long keyID,
boolean isNested)
Create a version 3 OnePassSignaturePacket .
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Method Summary | |
void |
encode(BCPGOutputStream out)
Encode the contents of this packet into the given packet output stream. |
byte[] |
getFingerprint()
Return the version 6 fingerprint of the issuer. |
int |
getHashAlgorithm()
Return the algorithm ID of the hash algorithm. |
int |
getKeyAlgorithm()
Return the ID of the public key encryption algorithm. |
long |
getKeyID()
Return the key-id of the signing key. |
byte[] |
getSalt()
Return the salt used in the signature. |
int |
getSignatureType()
Return the signature type. |
int |
getVersion()
Return the packet version. |
boolean |
isContaining()
Return true, if the signature contains any signatures that follow. |
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 Detail |
public static final int VERSION_3
public static final int VERSION_6
Constructor Detail |
public OnePassSignaturePacket(int sigType, int hashAlgorithm, int keyAlgorithm, long keyID, boolean isNested)
OnePassSignaturePacket
.
Version 3 OPS packets are used with version 3 and version 4 SignaturePackets
.
To create an OPS packet for use with a version 6 SignaturePacket
,
see OnePassSignaturePacket(int, int, int, byte[], byte[], boolean)
.
sigType
- signature typehashAlgorithm
- hash algorithm tagkeyAlgorithm
- public key algorithm tagkeyID
- id of the signing keyisNested
- if false, there is another OPS packet after this one, which applies to the same data.
it true, the corresponding signature is calculated also over succeeding additional OPS packets.public OnePassSignaturePacket(int sigType, int hashAlgorithm, int keyAlgorithm, byte[] salt, byte[] fingerprint, boolean isNested)
OnePassSignaturePacket
.
sigType
- signature typehashAlgorithm
- hash algorithm tagkeyAlgorithm
- public key algorithm tagsalt
- random salt. The length of this array depends on the hash algorithm in use.fingerprint
- 32 octet fingerprint of the (v6) signing keyisNested
- if false, there is another OPS packet after this one, which applies to the same data.
it true, the corresponding signature is calculated also over succeeding additional OPS packets.Method Detail |
public int getVersion()
public int getSignatureType()
public int getKeyAlgorithm()
public int getHashAlgorithm()
public long getKeyID()
public byte[] getFingerprint()
public byte[] getSalt()
public boolean isContaining()
public void encode(BCPGOutputStream out) throws java.io.IOException
encode
in class ContainedPacket
out
- OpenPGP packet output stream
java.io.IOException
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Bouncy Castle Cryptography Library 1.81 | |||||||||
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