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Bouncy Castle Cryptography Library 1.64 | |||||||||
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java.lang.Objectorg.bouncycastle.util.BigIntegers
BigInteger utilities.
Field Summary | |
static java.math.BigInteger |
ONE
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static java.math.BigInteger |
ZERO
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Constructor Summary | |
BigIntegers()
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Method Summary | |
static byte[] |
asUnsignedByteArray(java.math.BigInteger value)
Return the passed in value as an unsigned byte array. |
static byte[] |
asUnsignedByteArray(int length,
java.math.BigInteger value)
Return the passed in value as an unsigned byte array. |
static java.math.BigInteger |
createRandomBigInteger(int bitLength,
java.security.SecureRandom random)
Return a positive BigInteger in the range of 0 to 2**bitLength - 1. |
static java.math.BigInteger |
createRandomInRange(java.math.BigInteger min,
java.math.BigInteger max,
java.security.SecureRandom random)
Return a random BigInteger not less than 'min' and not greater than 'max' |
static java.math.BigInteger |
createRandomPrime(int bitLength,
int certainty,
java.security.SecureRandom random)
Return a prime number candidate of the specified bit length. |
static java.math.BigInteger |
fromUnsignedByteArray(byte[] buf)
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static java.math.BigInteger |
fromUnsignedByteArray(byte[] buf,
int off,
int length)
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static int |
getUnsignedByteLength(java.math.BigInteger n)
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static int |
intValueExact(java.math.BigInteger x)
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static long |
longValueExact(java.math.BigInteger x)
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Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public static final java.math.BigInteger ZERO
public static final java.math.BigInteger ONE
Constructor Detail |
public BigIntegers()
Method Detail |
public static byte[] asUnsignedByteArray(java.math.BigInteger value)
value
- value to be converted.
public static byte[] asUnsignedByteArray(int length, java.math.BigInteger value)
value
- value to be converted.
public static java.math.BigInteger createRandomInRange(java.math.BigInteger min, java.math.BigInteger max, java.security.SecureRandom random)
min
- the least value that may be generatedmax
- the greatest value that may be generatedrandom
- the source of randomness
public static java.math.BigInteger fromUnsignedByteArray(byte[] buf)
public static java.math.BigInteger fromUnsignedByteArray(byte[] buf, int off, int length)
public static int intValueExact(java.math.BigInteger x)
public static long longValueExact(java.math.BigInteger x)
public static int getUnsignedByteLength(java.math.BigInteger n)
public static java.math.BigInteger createRandomBigInteger(int bitLength, java.security.SecureRandom random)
bitLength
- maximum bit length for the generated BigInteger.random
- a source of randomness.
public static java.math.BigInteger createRandomPrime(int bitLength, int certainty, java.security.SecureRandom random)
bitLength
- bit length for the generated BigInteger.random
- a source of randomness.
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Bouncy Castle Cryptography Library 1.64 | |||||||||
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