Secure transaction processing in firm real-time database systems

George, Binto; Haritsa, Jayant R.

doi:10.1145/253260.253362

Cited by 25 publications

(4 citation statements)

References 18 publications

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“…Prevent malicious changes to LoC-related data requires reliable and secure transaction process (George & Haritsa, 1997). LoCs require such processing since untrusted organizations often use them for valuable high-volume trades…”

Section: Reliable and Secure Transaction Processingmentioning

confidence: 99%

Blockchain Won’t Kill the Banks: Why Disintermediation Doesn’t Work in International Trade Finance

Fridgen¹,

Radszuwill²,

Schweizer³

et al. 2021

CAIS

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In the financial services industry, many people assume blockchain to have significant impacts. From research and practice, we observe two main paradigms of how organizations interact with blockchain. First, organizations use blockchain to optimize existing processes (blockchain-based business process optimization (BPO)). Second, organizations use blockchain to disrupt existing processes, foster disintermediation, and enable disruptive business models (blockchain-based business process disruption (BPD)). However, we lack scientific research that evaluates its de facto potential. We bridge this gap by following a design science research approach to design blockchain-based business process re-engineering (BPRE) for a letter of credit that combines the advantages of BPO and BPD. We conduct three design cycles and develop three artefacts: a BPO, a BPD, and a BPRE approach. Our BPRE approach combines the advantages of partial disintermediation (i.e., increased efficiency and transparency) with the advantages of intermediaries (i.e., process flexibility, liquidity provision, and dispute mediation).

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Section: Reliable and Secure Transaction Processingmentioning

confidence: 99%

Blockchain Won’t Kill the Banks: Why Disintermediation Doesn’t Work in International Trade Finance

Fridgen¹,

Radszuwill²,

Schweizer³

et al. 2021

CAIS

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“…The few works which address the security of real-time databases are described in (George 1997. In a concurrency control strategy is presented which trades off security for improved timeliness if the system does not provide the desired deadline miss percentage.…”

Section: Secure Real-time Concurrency Controlmentioning

confidence: 99%

“…In (George 1997), security of firm real-time databases is addressed. In this study, security is viewed as a correctness criterion, and the number of missed deadlines as a performance issue.…”

Section: Secure Real-time Concurrency Controlmentioning

confidence: 99%

“…A user can read a certain object only if the subject's clearance level dominates the object's security level. According to the Beii-LaPadula properties (George 1997) for MLS databases, a subject cannot read an object of a higher or incomparable security level than the subject and all writes must take place at the subject's security level or higher. However, the concurrent execution of transactions results in contention for data objects.…”

Section: Introductionmentioning

confidence: 99%

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Maintaining integrity constraints and security in real-time database systems

Ahmed

Vrbsky

1998

Integrity and Internal Control in Information Systems

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Many real-time database systems are contained in environments that exhibit restricted access to information, such as government agencies, hospitals and military institutions, where mandatory access control for security is required. In addition to such security constraints, real-time database systems have real-time integrity constraints. These real-time constraints require deadlines to be met and data to be temporally consistent. Conventional multi-level secure database models are inadequate for time-critical applications and conventional real-time database models do not support security constraints. We propose a new concurrency control algorithm for secure real-time databases. We implement the algorithm and study the performance using a real-time database system simulation model. Results show that the algorithm performs fairly well in terms of security and timeliness compared to the non-secure algorithm. We argue and show that achieving more security does not necessarily mean a great deal of sacrifice in maintaining real-time constraints. Keywords Multi-level secure databases, real-time database, real-time constraints S. Jajodia et al. (eds.

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Secure Real-time Transaction Processing

Haritsa¹,

George²

The International Series in Engineering and Computer Science

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Secure transaction processing in firm real-time database systems

Cited by 25 publications

References 18 publications

Blockchain Won’t Kill the Banks: Why Disintermediation Doesn’t Work in International Trade Finance

Blockchain Won’t Kill the Banks: Why Disintermediation Doesn’t Work in International Trade Finance

Maintaining integrity constraints and security in real-time database systems

Secure Real-time Transaction Processing

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