Research Article
A Postquantum Linkable Ring Signature Scheme from Coding Theory
(1) | Public parameters:. | (2) | Private key: Samples such that . | (3) | Public key: Samples and calculates . | (4) | Prover: | | (i) Samples and . | | (ii) Calculates , , and sets . | | (iii) Sends to . | (5) | Verifier: | | (i) Samples the challenge . | (6) | Prover: | | (i) Case : Sets . | | (ii) Case : Sets . | | (iii) Case : Sets . | | (iv) Sends the response to . | (7) | Verifier: | | (i) If , checks if and are true. | | (ii) If , checks if and are true. | | (iii) If , checks if and are true. |
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