is.logi.crypto.hash
Class MD5State
java.lang.Object
|
+--is.logi.crypto.Crypto
|
+--is.logi.crypto.hash.HashState
|
+--is.logi.crypto.hash.MD5State
- public class MD5State
- extends HashState
An object of this class holds the state of an MD5 fingerprint still
being calculated.
- Author:
- Logi Ragnarsson (logir@hi.is)
- See Also:
Fingerprint
,
Signature
Constructor Summary |
MD5State()
Create a new clear MD5State. |
Method Summary |
int |
blockSize()
Return the number of bytes needed to make a valid hash. |
Fingerprint |
calculate()
Return a Fingerprint for the curret state, without
destroying the state. |
java.lang.String |
getName()
The name of the algorithm is "MD5". |
int |
hashSize()
Returns the size of a fingerprint in bytes. |
void |
reset()
Reset the object. |
void |
update(byte[] data,
int offset,
int length)
Update the fingerprint state with the bytes from
buf[offset, offset+length-1] . |
Methods inherited from class is.logi.crypto.Crypto |
binString,
binString,
equal,
equalRelaxed,
equalSub,
fromHexNibble,
fromHexString,
fromString,
fromString,
hexString,
hexString,
hexString,
hexString,
makeClass,
makeInt,
makeLong,
makeSessionKey,
pastSpace,
pickBits,
pickBits,
readInt,
writeBytes,
writeBytes,
writeInt |
Methods inherited from class java.lang.Object |
equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
MD5State
public MD5State()
- Create a new clear MD5State.
getName
public java.lang.String getName()
- The name of the algorithm is "MD5".
- Overrides:
- getName in class HashState
reset
public void reset()
- Reset the object.
- Overrides:
- reset in class HashState
update
public void update(byte[] data,
int offset,
int length)
- Update the fingerprint state with the bytes from
buf[offset, offset+length-1]
.
- Overrides:
- update in class HashState
calculate
public Fingerprint calculate()
- Return a Fingerprint for the curret state, without
destroying the state.
- Overrides:
- calculate in class HashState
blockSize
public int blockSize()
- Return the number of bytes needed to make a valid hash. If a multiple
of this number of bytes is hashed, no padding is needed. If no such
value exists, returns 0.
- Overrides:
- blockSize in class HashState
hashSize
public int hashSize()
- Returns the size of a fingerprint in bytes.
- Overrides:
- hashSize in class HashState
Copyright 1997-1999 Logi Ragnarsson