Package org.apache.sshd.common.random
Class JceRandom
- java.lang.Object
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- org.apache.sshd.common.random.AbstractRandom
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- org.apache.sshd.common.random.JceRandom
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- All Implemented Interfaces:
NamedResource
,Random
public class JceRandom extends AbstractRandom
ARandom
implementation using the built-inSecureRandom
PRNG.
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
JceRandom.Cache
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Field Summary
Fields Modifier and Type Field Description private static org.slf4j.Logger
LOG
static java.lang.String
NAME
private java.security.SecureRandom
random
private byte[]
tmp
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Fields inherited from interface org.apache.sshd.common.NamedResource
BY_NAME_COMPARATOR, NAME_EXTRACTOR
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Constructor Summary
Constructors Constructor Description JceRandom()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
fill(byte[] foo, int start, int len)
Fill part of bytes with random values.static java.security.SecureRandom
getGlobalInstance()
java.lang.String
getName()
private static java.security.SecureRandom
getRandom()
int
random(int n)
Returns a pseudo-random uniformly distributedint
in the half-open range [0, n).-
Methods inherited from class org.apache.sshd.common.random.AbstractRandom
toString
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Field Detail
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NAME
public static final java.lang.String NAME
- See Also:
- Constant Field Values
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LOG
private static final org.slf4j.Logger LOG
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tmp
private byte[] tmp
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random
private final java.security.SecureRandom random
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Method Detail
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getRandom
private static java.security.SecureRandom getRandom()
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getGlobalInstance
public static java.security.SecureRandom getGlobalInstance()
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getName
public java.lang.String getName()
- Returns:
- The resource name
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fill
public void fill(byte[] foo, int start, int len)
Description copied from interface:Random
Fill part of bytes with random values.- Parameters:
foo
- byte array to be filled.start
- index to start filling at.len
- length of segment to fill.
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random
public int random(int n)
Description copied from interface:Random
Returns a pseudo-random uniformly distributedint
in the half-open range [0, n).- Parameters:
n
- The range upper limit- Returns:
- The randomly selected value in the range
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