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java.lang.Object
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+--gnu.crypto.hash.BaseHash
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+--gnu.crypto.hash.MD5
The MD5 message-digest algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message digest.
References:
| Fields inherited from class gnu.crypto.hash.BaseHash |
blockSize, buffer, count, hashSize, name |
| Constructor Summary | |
MD5()
Trivial 0-arguments constructor. |
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| Method Summary | |
java.lang.Object |
clone()
Returns a clone copy of this instance. |
protected byte[] |
getResult()
Constructs the result from the contents of the current context. |
protected byte[] |
padBuffer()
Returns the byte array to use as padding before completing a hash operation. |
protected void |
resetContext()
Resets the instance for future re-use. |
boolean |
selfTest()
A basic test. |
protected void |
transform(byte[] in,
int offset)
The block digest transformation per se. |
| Methods inherited from class gnu.crypto.hash.BaseHash |
blockSize, digest, hashSize, name, reset, update, update |
| Methods inherited from class java.lang.Object |
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| Constructor Detail |
public MD5()
| Method Detail |
public java.lang.Object clone()
IMessageDigestReturns a clone copy of this instance.
clone in class BaseHashgnu.crypto.hash.IMessageDigest
protected void transform(byte[] in,
int offset)
BaseHashThe block digest transformation per se.
transform in class BaseHashgnu.crypto.hash.BaseHashin - the blockSize long block, as an array of bytes to digest.offset - the index where the data to digest is located within the
input buffer.protected byte[] padBuffer()
BaseHashReturns the byte array to use as padding before completing a hash operation.
padBuffer in class BaseHashgnu.crypto.hash.BaseHashprotected byte[] getResult()
BaseHashConstructs the result from the contents of the current context.
getResult in class BaseHashgnu.crypto.hash.BaseHashprotected void resetContext()
BaseHashresetContext in class BaseHashpublic boolean selfTest()
IMessageDigestA basic test. Ensures that the digest of a pre-determined message is equal to a known pre-computed value.
selfTest in class BaseHashgnu.crypto.hash.IMessageDigest
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For the latest news and information visit The GNU Crypto project |
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