Signing key exposure resistance
WebMar 26, 2024 · Lian et al. proposed a revocable attribute-based signature scheme, but Wei et al. revealed that Lian et al.’s scheme is vulnerable to signing key exposure. If a signature … Webalso note that key exposure against the transformation key is unnecessary when the key updated is sent through via a public channel since the transformation key can be derived by anyone. On the other hand, since the user decryption. 95 key is static, it obviously cannot resist the decryption key exposure attack we. 5
Signing key exposure resistance
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WebSep 10, 2024 · Furthermore, we demonstrate that Hung et al.’s RIBS scheme is vulnerable to signing key exposure attack. To solve these problems, we construct an improved RIBS scheme with strong unforgeability and signing key exposure resistance in the standard model. Compared with previous RIBS schemes without random oracles, ... WebApr 1, 2024 · In [15], the key exposure is against the partial decryption key (or transformation key) possessed by the CSP while in this paper we consider the exposure …
WebMar 26, 2024 · Lian et al. proposed a revocable attribute-based signature scheme, but Wei et al. revealed that Lian et al.’s scheme is vulnerable to signing key exposure. If a signature scheme can resist the signing key exposure attack, then the users store their secret keys on physical devices with relatively high security levels, while the update keys can ...
WebMar 26, 2024 · Abstract. Identity-based proxy re-signature (IDPRS) is a novel cryptographic primitive that allows a semi-trusted proxy to convert a signature under one identity into … WebGenerally, signature schemes that are secure against key exposure attacks present a limited window of time within which the attacker can produce a valid forgery, e.g., the time period when key exposure occurs in the case of [13,14,20–22]. Moreover, the requirement to update keys/algorithms may alert an attacker to an unsuccessful key exposure ...
WebMay 1, 2015 · If a signature scheme can resist the signing key exposure attack, then the users store their secret keys on physical devices with relatively high security levels, while the update keys can be ...
WebFeb 1, 2024 · In addition, we extend our interest into identity-based signatures; we introduce a new security definition of revocable identity-based signature (RIBS) with signing key … high waisted flare jeans outfit black girlWebMay 1, 2024 · In addition, we introduce a new security definition of RIBFHS with signing key exposure resistance. Then, we employ Agrawal’s left–right lattices and delegation … high waisted flare jeans near meWebsize, and the revocation mechanism with public channels. However, the KGC’s overhead increases linearly with the number of users, which results in issues with scalability. Moreo high waisted flare jeans for petitesWebIn this paper, we aim to provide a scalable revocation mechanism for attribute-based signature (ABS). Specifically, we first formally define the syntax of revocable ABS (RABS), followed with a corresponding security model that considers a realistic threat called signing key exposure. Then, built on the ideas of an ABS scheme and binary data ... high waisted flare jeans sheinWebFeb 5, 2015 · Cloud storage auditing is viewed as an important service to verify the integrity of the data in public cloud. Current auditing protocols are all based on the assumption that the client's secret key for auditing is absolutely secure. However, such assumption may not always be held, due to the possibly weak sense of security and/or low security settings at … high waisted flare jeans nzWebIn addition, we introduce a new security definition of RIBFHS with signing key exposure resistance. Then, we employ Agrawal's left–right lattices and delegation technology in … how many feet are in a acreWebIn this paper, we aim to provide a scalable revocation mechanism for attribute-based signature (ABS). Specifically, we first formally define the syntax of revocable ABS (RABS), … how many feet are in a feet