Constructor and Description |
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BigIntegerScalarOps(Field f,
BigInteger l) |
Modifier and Type | Method and Description |
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byte[] |
multiplyAndAdd(byte[] a,
byte[] b,
byte[] c)
r = (a * b + c) mod l
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byte[] |
reduce(byte[] s)
Reduce the given scalar mod l.
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public BigIntegerScalarOps(Field f, BigInteger l)
public byte[] reduce(byte[] s)
ScalarOps
From the Ed25519 paper:
Here we interpret 2b-bit strings in little-endian form as integers in
{0, 1,..., 2^(2b)-1}.
public byte[] multiplyAndAdd(byte[] a, byte[] b, byte[] c)
ScalarOps
multiplyAndAdd
in interface ScalarOps