/**
* Constructs a parameter set that uses ternary private keys (i.e. </code>polyType=SIMPLE</code>).
* @param N number of polynomial coefficients
* @param q modulus
* @param d number of -1's in the private polynomials <code>f</code> and <code>g</code>
* @param B number of perturbations
* @param basisType whether to use the standard or transpose lattice
* @param beta balancing factor for the transpose lattice
* @param normBound maximum norm for valid signatures
* @param keyNormBound maximum norm for the polynomials <code>F</code> and <code>G</code>
* @param primeCheck whether <code>2N+1</code> is prime
* @param sparse whether to treat ternary polynomials as sparsely populated ({@link SparseTernaryPolynomial} vs {@link DenseTernaryPolynomial})
* @param keyGenAlg <code>RESULTANT</code> produces better bases, <code>FLOAT</code> is slightly faster. <code>RESULTANT</code> follows the EESS standard while <code>FLOAT</code> is described in Hoffstein et al: An Introduction to Mathematical Cryptography.
* @param hashAlg a valid identifier for a <code>java.security.MessageDigest</code> instance such as <code>SHA-256</code>. The <code>MessageDigest</code> must support the <code>getDigestLength()</code> method.
*/
public SignatureParameters(int N, int q, int d, int B, BasisType basisType, float beta, float normBound, float keyNormBound, bool primeCheck, bool sparse, KeyGenAlg keyGenAlg, String hashAlg)
{
this.N = N;
this.q = q;
this.d = d;
this.B = B;
this.basisType = basisType;
this.beta = beta;
this.normBound = normBound;
this.keyNormBound = keyNormBound;
this.primeCheck = primeCheck;
this.sparse = sparse;
this.keyGenAlg = keyGenAlg;
this.hashAlg = hashAlg;
polyType = TernaryPolynomialType.SIMPLE;
init();
}
/**
* Constructs a parameter set that uses ternary private keys (i.e. </code>polyType=SIMPLE</code>).
* @param N number of polynomial coefficients
* @param q modulus
* @param d number of -1's in the private polynomials <code>f</code> and <code>g</code>
* @param B number of perturbations
* @param basisType whether to use the standard or transpose lattice
* @param beta balancing factor for the transpose lattice
* @param normBound maximum norm for valid signatures
* @param keyNormBound maximum norm for the polynomials <code>F</code> and <code>G</code>
* @param primeCheck whether <code>2N+1</code> is prime
* @param sparse whether to treat ternary polynomials as sparsely populated ({@link SparseTernaryPolynomial} vs {@link DenseTernaryPolynomial})
* @param keyGenAlg <code>RESULTANT</code> produces better bases, <code>FLOAT</code> is slightly faster. <code>RESULTANT</code> follows the EESS standard while <code>FLOAT</code> is described in Hoffstein et al: An Introduction to Mathematical Cryptography.
* @param hashAlg a valid identifier for a <code>java.security.MessageDigest</code> instance such as <code>SHA-256</code>. The <code>MessageDigest</code> must support the <code>getDigestLength()</code> method.
*/
public SignatureParameters(int N, int q, int d, int B, BasisType basisType, float beta, float normBound, float keyNormBound, bool primeCheck, bool sparse, KeyGenAlg keyGenAlg, String hashAlg)
{
this.N = N;
this.q = q;
this.d = d;
this.B = B;
this.basisType = basisType;
this.beta = beta;
this.normBound = normBound;
this.keyNormBound = keyNormBound;
this.primeCheck = primeCheck;
this.sparse = sparse;
this.keyGenAlg = keyGenAlg;
this.hashAlg = hashAlg;
polyType = TernaryPolynomialType.SIMPLE;
init();
}
/**
* Reads a parameter set from an input stream.
* @param is an input stream
* @throws IOException
*/
public SignatureParameters(MemoryStream ins)
{
BinaryReader dis = new BinaryReader(ins);
N = dis.ReadInt32();
q = dis.ReadInt32();
d = dis.ReadInt32();
d1 = dis.ReadInt32();
d2 = dis.ReadInt32();
d3 = dis.ReadInt32();
B = dis.ReadInt32();
basisType = (BasisType)dis.ReadInt32();
beta = dis.ReadSingle();
normBound = dis.ReadSingle();
keyNormBound = dis.ReadSingle();
signFailTolerance = dis.ReadInt32();
primeCheck = dis.ReadBoolean();
sparse = dis.ReadBoolean();
bitsF = dis.ReadInt32();
keyGenAlg = (KeyGenAlg)dis.ReadInt32();
hashAlg = dis.ReadString();
polyType = (TernaryPolynomialType)dis.ReadInt32();
init();
}
/**
* Reads a parameter set from an input stream.
* @param is an input stream
* @throws IOException
*/
public SignatureParameters(MemoryStream ins)
{
BinaryReader dis = new BinaryReader(ins);
N = dis.ReadInt32();
q = dis.ReadInt32();
d = dis.ReadInt32();
d1 = dis.ReadInt32();
d2 = dis.ReadInt32();
d3 = dis.ReadInt32();
B = dis.ReadInt32();
basisType = (BasisType)dis.ReadInt32();
beta = dis.ReadSingle();
normBound = dis.ReadSingle();
keyNormBound = dis.ReadSingle();
signFailTolerance = dis.ReadInt32();
primeCheck = dis.ReadBoolean();
sparse = dis.ReadBoolean();
bitsF = dis.ReadInt32();
keyGenAlg = (KeyGenAlg)dis.ReadInt32();
hashAlg = dis.ReadString();
polyType = (TernaryPolynomialType)dis.ReadInt32();
init();
}
