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When initializing cryptographic systems or running cryptographic protocols, the randomness of critical parameters, like keys or key components, is one of the most crucial aspects. But, randomly chosen parameters come with the intrinsic chance of duplicates, which finally may cause cryptographic systems including RSA, ElGamal and Zero-Knowledge proofs to become insecure. When concerning digital identifiers, we need uniqueness in order to correctly identify a specific action or object. Unfortunately we also need randomness here. Without randomness, actions become linkable to each other or to their initiator’s digital identity. So ideally the employed (cryptographic) parameters should fulfill two potentially conflicting requirements simultaneously: randomness and uniqueness. This article proposes an efficient mechanism to provide both attributes at the same time without highly constraining the first one and never violating the second one. After defining five requirements on random number generators and discussing related work, we will describe the core concept of the generation mechanism. Subsequently we will prove the postulated properties (security, randomness, uniqueness, efficiency and privacy protection) and present some application scenarios including system-wide unique parameters, cryptographic keys and components, identifiers and digital pseudonyms.
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篇名 Random but System-Wide Unique Unlinkable Parameters
来源期刊 信息安全(英文) 学科 医学
关键词 Randomness System-Wide Uniqueness UNIQUE CRYPTOGRAPHIC PARAMETERS CRYPTOGRAPHIC keys DIGITAL Identifiers DIGITAL Pseudonyms UUID Universally UNIQUE Identifiers GUID Globally UNIQUE Identifiers
年,卷(期) 2012,(1) 所属期刊栏目
研究方向 页码范围 1-10
页数 10页 分类号 R73
字数 语种
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研究主题发展历程
节点文献
Randomness
System-Wide
Uniqueness
UNIQUE
CRYPTOGRAPHIC
PARAMETERS
CRYPTOGRAPHIC
keys
DIGITAL
Identifiers
DIGITAL
Pseudonyms
UUID
Universally
UNIQUE
Identifiers
GUID
Globally
UNIQUE
Identifiers
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
信息安全(英文)
季刊
2153-1234
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
230
总下载数(次)
0
总被引数(次)
0
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