abstract class BcDlogGroup[ElemType <: ECPoint] extends DlogGroup[ElemType]
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Instance Constructors
- new BcDlogGroup(x9params: X9ECParameters)
Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
calcK(p: BigInteger): Int
This function calculates k, the maximum length in bytes of a string to be converted to a Group Element of this group.
This function calculates k, the maximum length in bytes of a string to be converted to a Group Element of this group.
- returns
k
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def
checkCurveMembership(x: BigInteger, y: BigInteger): Boolean
Checks if the given x and y represent a valid point on the given curve, i.e.
Checks if the given x and y represent a valid point on the given curve, i.e. if the point (x, y) is a solution of the curves equation.
- x
coefficient of the point
- y
coefficient of the point
- returns
true if the given x and y represented a valid point on the given curve
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def
clone(): AnyRef
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- protected[java.lang]
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- @throws( ... ) @native()
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def
computeLL(groupElements: Array[ElemType], exponentiations: Array[BigInteger]): ElemType
- Attributes
- protected
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def
computeNaive(groupElements: Array[ElemType], exponentiations: Array[BigInteger]): ElemType
- Attributes
- protected
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def
createRandomElement(): ElemType
Creates a random member of this Dlog group
Creates a random member of this Dlog group
- returns
the random element
- Definition Classes
- BcDlogGroup → DlogGroup
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def
createRandomGenerator(): ElemType
Creates a random generator of this Dlog group
Creates a random generator of this Dlog group
- returns
the random generator
- Definition Classes
- DlogGroup
- lazy val curve: ECCurve
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def
endExponentiateWithPreComputedValues(base: ElemType): Unit
This function cleans up any resources used by exponentiateWithPreComputedValues for the requested base.
This function cleans up any resources used by exponentiateWithPreComputedValues for the requested base. It is recommended to call it whenever an application does not need to continue calculating exponentiations for this specific base.
- Definition Classes
- BcDlogGroup → DlogGroup
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final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
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def
equals(arg0: Any): Boolean
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def
exponentiate(base: ElemType, exponent: BigInteger): ElemType
Raises the base GroupElement to the exponent.
Raises the base GroupElement to the exponent. The result is another GroupElement.
- returns
the result of the exponentiation
- Definition Classes
- BcDlogGroup → DlogGroup
- Exceptions thrown
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def
exponentiateWithPreComputedValues(base: ElemType, exponent: BigInteger): ElemType
Computes the product of several exponentiations of the same base and distinct exponents.
Computes the product of several exponentiations of the same base and distinct exponents. An optimization is used to compute it more quickly by keeping in memory the result of h1, h2, h4,h8,... and using it in the calculation.
Note that if we want a one-time exponentiation of h it is preferable to use the basic exponentiation function since there is no point to keep anything in memory if we have no intention to use it.
- returns
the exponentiation result
- Definition Classes
- BcDlogGroup → DlogGroup
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def
finalize(): Unit
- Attributes
- protected[java.lang]
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- @throws( classOf[java.lang.Throwable] )
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lazy val
generator: ElemType
The generator g of the group is an element of the group such that, when written multiplicatively, every element of the group is a power of g.
The generator g of the group is an element of the group such that, when written multiplicatively, every element of the group is a power of g.
- returns
the generator of this Dlog group
- Definition Classes
- BcDlogGroup → DlogGroup
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final
def
getClass(): Class[_]
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- @native()
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def
hashCode(): Int
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- @native()
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lazy val
identity: ElemType
- returns
the identity of this Dlog group
- Definition Classes
- BcDlogGroup → DlogGroup
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def
inverseOf(groupElement: ElemType): ElemType
Calculates the inverse of the given GroupElement.
Calculates the inverse of the given GroupElement.
- groupElement
to invert
- returns
the inverse element of the given GroupElement
- Definition Classes
- BcDlogGroup → DlogGroup
- Exceptions thrown
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final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- lazy val k: Int
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lazy val
maxLengthOfByteArrayForEncoding: Int
This function returns the value <I>k</I> which is the maximum length of a string to be encoded to a Group Element of this group.
This function returns the value <I>k</I> which is the maximum length of a string to be encoded to a Group Element of this group.
Any string of length <I>k</I> has a numeric value that is less than (p-1)/2 - 1. <I>k</I> is the maximum length a binary string is allowed to be in order to encode the said binary string to a group element and vice-versa.
If a string exceeds the <I>k</I> length it cannot be encoded.
- returns
k the maximum length of a string to be encoded to a Group Element of this group. k can be zero if there is no maximum.
- Definition Classes
- BcDlogGroup → DlogGroup
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def
multiplyGroupElements(groupElement1: ElemType, groupElement2: ElemType): ElemType
Multiplies two GroupElements
Multiplies two GroupElements
- returns
the multiplication result
- Definition Classes
- BcDlogGroup → DlogGroup
- Exceptions thrown
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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- @native()
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final
def
notifyAll(): Unit
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- @native()
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lazy val
order: BigInteger
- returns
the order of this Dlog group
- Definition Classes
- BcDlogGroup → DlogGroup
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def
orderGreaterThan(numBits: Int): Boolean
Checks if the order of this group is greater than
2^numBits
Checks if the order of this group is greater than
2^numBits
- returns
true
if the order is greater than2^numBits
;
false
otherwise.
- Definition Classes
- BcDlogGroup → DlogGroup
- lazy val p: BigInteger
- lazy val q: BigInteger
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val
secureRandom: SecureRandom
- Definition Classes
- DlogGroup
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def
simultaneousMultipleExponentiations(groupElements: Array[ElemType], exponentiations: Array[BigInteger]): ElemType
Computes the product of several exponentiations with distinct bases and distinct exponents.
Computes the product of several exponentiations with distinct bases and distinct exponents. Instead of computing each part separately, an optimization is used to compute it simultaneously.
- returns
the exponentiation result
- Definition Classes
- BcDlogGroup → DlogGroup
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
- Definition Classes
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- Annotations
- @throws( ... ) @native()
- val x9params: X9ECParameters