Package org.acplt.oncrpc.apps.jrpcgen
Class JrpcgenSHA
- java.lang.Object
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- org.acplt.oncrpc.apps.jrpcgen.JrpcgenSHA
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public class JrpcgenSHA extends java.lang.Object
This class implements the SHA-1 algorithm as described in "Federal Information Processing Standards Publication 180-1: Specifications for the Secure Hash Standard. April 17, 1995."
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Constructor Summary
Constructors Constructor Description JrpcgenSHA()
Create a new SHA-1 hashing object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]
getDigest()
Retrieve the digest (that is, informally spoken, the "hash value").long
getHash()
Return first 64 bits of hash digest for use as a serialization UID, etc.private void
process()
Process a single block.void
reset()
Reset the hashing engine to start hashing another set of innocent bytes.void
update(byte b)
Update the hash using a single byte (8 bits).void
update(int i)
Update the hash using an integer (32 bits).void
update(short s)
Update the hash using a short integer (16 bits).void
update(java.lang.String s)
Update the hash using a string.
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Method Detail
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update
public void update(byte b)
Update the hash using a single byte (8 bits).- Parameters:
b
- Byte to hash.
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update
public void update(short s)
Update the hash using a short integer (16 bits).- Parameters:
s
- Short integer to hash.
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update
public void update(int i)
Update the hash using an integer (32 bits).- Parameters:
i
- Integer to hash.
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update
public void update(java.lang.String s)
Update the hash using a string.- Parameters:
s
- String to hash.
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reset
public void reset()
Reset the hashing engine to start hashing another set of innocent bytes.
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getDigest
public byte[] getDigest()
Retrieve the digest (that is, informally spoken, the "hash value").- Returns:
- digest as a series of 20 bytes (80 bits).
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getHash
public long getHash()
Return first 64 bits of hash digest for use as a serialization UID, etc.- Returns:
- hash digest with only 64 bit size.
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process
private void process()
Process a single block. This is pretty much copied verbatim from "Federal Information Processing Standards Publication 180-1: Specifications for the Secure Hash Standard. April 17, 1995.", pp. 9, 10.
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