implements Quantum Digital Signature
This protocol [1] provides a quantum digital signature scheme where the public (known to all) and private (secret key preserved with the seller) keys are classical in nature, however the signature has a quantum nature. This scheme is based on public-key cryptography where the seller’s identity is used to generate the public-key and one-time pad generates the private key.
Like other Quantum Digital Signature protocols, it is divided into two phases: Distribution and Messaging. This scheme is presented between the seller (one who signs the message), the buyer (one whom the signed message is sent) and PKG (generates and distributes public-private key for the seller) and a buyer.
Distribution includes the generation of public and private keys as follows
Messaging comprises of the following steps
Stage 1 Key Distribution
Input: Seller and PKG ($k_{at}$)
Output: Seller and PKG ($k_{pri}$); Everyone ($k_{pub}$)
Stage 2.1 Messaging: Signature
Input: Seller ($k_{pri}$, $m$, $k_{pub}$)
Output: PKG ($|F\\\rangle$), Buyer (Signature $(ts, m, B_P,|S\\\rangle_{k_{pri}, m})$
Stage 2.2 Messaging: Verification
Input: Buyer (Signature $(ts, m, B, |S\\\rangle_{k_{pri}, m})$, public key $(k_{pub})$)
Output: Buyer accepts or rejects the signature
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Like most other classical digital signature schemes which provide unconditional security, this scheme also requires a trusted arbitrator who distributes the public key to the recipients. This protocol was preceded by a few other protocols which use an arbitrator to establish quantum digital signatures, most of which used entangled states.
implements Quantum Digital Signature
This protocol [1] provides a quantum digital signature scheme where the public (known to all) and private (secret key preserved with the seller) keys are classical in nature, however the signature has a quantum nature. This scheme is based on public-key cryptography where the seller’s identity is used to generate the public-key and one-time pad generates the private key.
Like other Quantum Digital Signature protocols, it is divided into two phases: Distribution and Messaging. This scheme is presented between the seller (one who signs the message), the buyer (one whom the signed message is sent) and PKG (generates and distributes public-private key for the seller) and a buyer.
Distribution includes the generation of public and private keys as follows
Messaging comprises of the following steps
No content has been added to this section, yet!
No content has been added to this section, yet!
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No content has been added to this section, yet!
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