Improved Multisignature Scheme for Authenticity of Digital Document in Digital Forensics Using Edward-Curve Digital Signature Algorithm

Algorithm 1

Key pair generation.

	Input: Biometric Credential of users, Aadhaar
	Number, Random Integer.
	Output: Public and Private Key pairs.
	Notations;
	EdDSApriva ← EdDSA private-key
	EdDSApub ← EdDSA public-key
	hashfunc(.) ← SHA-256 hash function
	Initialization;
	Fprint ← User fingerprint input
	Anum ← Aadhar Number
	Rand ← Random Number
	Key Generation;
	EdDSA, priv = hashfunc(Fprint ⊕ Anum ⊕ Rand)
	EdDSApub = EdDSAKeyGen (EdDSApriv)
	Print EdDSApriv and EdDSApub.