org.bouncycastle.pqc.math.ntru.parameters
Class NTRUParameterSet

java.lang.Object
  |
  +--org.bouncycastle.pqc.math.ntru.parameters.NTRUParameterSet

Direct Known Subclasses:

NTRUHPSParameterSet, NTRUHRSSParameterSet

public abstract class NTRUParameterSet

extends java.lang.Object

Abstract class for all NTRU parameter sets.

See Also:

NTRUHPSParameterSet, NTRUHRSSParameterSet, NTRU specification document

Constructor Summary

NTRUParameterSet(int n, int logQ, int seedBytes, int prfKeyBytes, int sharedKeyBytes)

Method Summary

abstract Polynomial	createPolynomial() Creates a polynomial based on this parameter set.
int	logQ() logq
int	n() n
int	ntruCiphertextBytes() The number of bytes in a ciphertext for the KEM.
int	ntruPublicKeyBytes() The number of bytes in a public key for the KEM.
int	ntruSecretKeyBytes() The number of bytes in a private key for the KEM.
int	owcpaBytes() The number of bytes in a ciphertext for the DPKE.
int	owcpaMsgBytes() The number of bytes in a plaintext for the DPKE.
int	owcpaPublicKeyBytes() The number of bytes in a public key for the DPKE.
int	owcpaSecretKeyBytes() The number of bytes in a private key for the DPKE.
int	packDegree()
int	packTrinaryBytes()
int	prfKeyBytes() The number of bytes used to key the implicit rejection mechanism.
int	q() q
abstract int	sampleFgBytes()
int	sampleFixedTypeBytes()
int	sampleIidBytes()
abstract int	sampleRmBytes()
int	seedBytes() The number of random bytes consumed by keygen.
int	sharedKeyBytes()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NTRUParameterSet

public NTRUParameterSet(int n,
                        int logQ,
                        int seedBytes,
                        int prfKeyBytes,
                        int sharedKeyBytes)

Method Detail

createPolynomial

public abstract Polynomial createPolynomial()

Creates a polynomial based on this parameter set.

Returns:

an instance of Polynomial

n

public int n()

n

Returns:

n is a prime and both 2 and 3 are of order n − 1 in (Z/n)×

logQ

public int logQ()

logq

Returns:

log2(q)

q

public int q()

q

Returns:

q is a power of two

seedBytes

public int seedBytes()

The number of random bytes consumed by keygen.

Returns:

{@code key_seed_bits/8}

prfKeyBytes

public int prfKeyBytes()

The number of bytes used to key the implicit rejection mechanism.

Returns:

{@code prf_key_bits/8}

sharedKeyBytes

public int sharedKeyBytes()

Returns:

{@code kem_shared_key_bits/8}

sampleIidBytes

public int sampleIidBytes()

Returns:

{@code sample_iid_bits/8}

sampleFixedTypeBytes

public int sampleFixedTypeBytes()

Returns:

{@code sample_xed_type_bits}

sampleFgBytes

public abstract int sampleFgBytes()

Returns:

{@code sample_key_bits/8}

sampleRmBytes

public abstract int sampleRmBytes()

Returns:

{@code sample_plaintext_bits/8}

packDegree

public int packDegree()

packTrinaryBytes

public int packTrinaryBytes()

Returns:

{@code packed_s3_bytes}

owcpaMsgBytes

public int owcpaMsgBytes()

The number of bytes in a plaintext for the DPKE.

Returns:

{@code dpke_plaintext_bytes}

owcpaPublicKeyBytes

public int owcpaPublicKeyBytes()

The number of bytes in a public key for the DPKE.

Returns:

{@code dpke_public_key_bytes}

owcpaSecretKeyBytes

public int owcpaSecretKeyBytes()

The number of bytes in a private key for the DPKE.

Returns:

{@code dpke_private_key_bytes}

owcpaBytes

public int owcpaBytes()

The number of bytes in a ciphertext for the DPKE.

Returns:

{@code dpke_ciphertext_bytes}

ntruPublicKeyBytes

public int ntruPublicKeyBytes()

The number of bytes in a public key for the KEM.

Returns:

{@code kem_public_key_bytes}

ntruSecretKeyBytes

public int ntruSecretKeyBytes()

The number of bytes in a private key for the KEM.

Returns:

{@code kem_private_key_bytes}

ntruCiphertextBytes

public int ntruCiphertextBytes()

The number of bytes in a ciphertext for the KEM.

Returns:

{@code kem_ciphertext_bytes}