Package org.bouncycastle.crypto.params

Class ECCSIPrivateKeyParameters

java.lang.Object
org.bouncycastle.crypto.params.AsymmetricKeyParameter
org.bouncycastle.crypto.params.ECCSIPrivateKeyParameters
All Implemented Interfaces:
CipherParameters
public class ECCSIPrivateKeyParameters extends AsymmetricKeyParameter
Represents the private key parameters for the Elliptic Curve-based Certificateless Signature Infrastructure (ECCSI) scheme as defined in RFC 6507.

This class encapsulates the secret signing key (SSK) used in ECCSI. The SSK is generated by the Key Management Service (KMS) and is a random integer modulo the order of the elliptic curve. It is paired with the corresponding public key parameters, represented by an instance of ECCSIPublicKeyParameters, to form the complete key material required for generating and verifying ECCSI signatures without the use of traditional certificates.

Per RFC 6507 Section 5.1:

  • The SSK is generated as a random value in the appropriate range.
  • It is used in conjunction with the public validation token (PVT) to perform signature operations.
  • The combination of the SSK and the public key parameters enables certificateless signature generation and verification.

See Also:

  • Constructor Details

    • ECCSIPrivateKeyParameters

      public ECCSIPrivateKeyParameters(BigInteger ssk, ECCSIPublicKeyParameters pub)
      Constructs ECCSIPrivateKeyParameters with the specified secret signing key and associated public key parameters.
      Parameters:
      ssk - the secret signing key (SSK) as a BigInteger.
      pub - the corresponding public key parameters, which encapsulate the public validation token.

  • Method Details

    • getPublicKeyParameters

      public ECCSIPublicKeyParameters getPublicKeyParameters()
      Returns the public key parameters associated with this private key.
      Returns:
      the ECCSIPublicKeyParameters containing the public validation token (PVT).

    • getSSK

      public BigInteger getSSK()
      Returns the secret signing key (SSK) used in ECCSI.
      Returns:
      the SSK as a BigInteger.