{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11271743","patent":{"patent_number":"US-11271743","title":"Plaintext equivalence proof techniques in communication systems","assignee":null,"inventors":[],"filing_date":"2018-10-01T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":18,"abstract":"Methods aiding in proving shuffles of re-encryptions of ciphertexts and a mixnet employing such methods. A method for compacting ciphertexts includes encrypting a plaintext using an asymmetric key encryption scheme for a ciphertext, dividing the ciphertext into partial ciphertexts, encrypting each of the partial ciphertexts using the asymmetric key encryption scheme to obtain re-encrypted partial ciphertexts, creating hash exponents from a digest of a cryptographic hash function taking the partial ciphertexts, the re-encrypted partial ciphertexts and arbitrary salt values as argument of the cryptographic hash function, calculating a compacted ciphertext by multiplying all of the partial ciphertexts exponentiated by a respective one of the plurality of hash exponents, and calculating a compacted re-encrypted ciphertext by multiplying all of the re-encrypted partial ciphertexts exponentiated by a respective one of the hash exponents."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Plaintext equivalence proof techniques in communication systems","description":"Methods aiding in proving shuffles of re-encryptions of ciphertexts and a mixnet employing such methods. A method for compacting ciphertexts includes encrypting a plaintext using an asymmetric key enc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11271743","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11271743","citation_suggestion":"Patentable. \"Plaintext equivalence proof techniques in communication systems\" (US-11271743). https://patentable.app/patents/US-11271743","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11271743","json":"https://patentable.app/api/llm-context/US-11271743","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:19:53.291Z"}