The identification and subsequent utilisation of regions of interest within biometric sample images can provide useful information that can benefit recognition performance. If a specific area of a biometric sample is data-rich in terms of feature quantity or quality then these regions of specific interest can be exploited, for example in terms of processing algorithm selection and information w...

Signature identification and verification are of great importance in authentication systems. The purpose of this paper is to introduce an experimental contribution in the direction of multi-script off-line signature identification and verification using a novel technique involving off-line English, Hindi (Devnagari) and Bangla (Bengali) signatures. In the first evaluation stage of the proposed ...

At Eurocrypt ’03, Goh and Jarecki showed that, contrary to other signature schemes in the discrete-log setting, the EDL signature scheme has a tight security reduction, namely to the Computational Diffie-Hellman (CDH) problem, in the Random Oracle (RO) model. They also remarked that EDL can be turned into an off-line/on-line signature scheme using the technique of Shamir and Tauman, based on ch...

-Authentication of identity is rapidly becoming an important issue. Signature verification is a promising biometric authentication method for resolving this issue. This paper proposes a new on-line signature verification algorithm that utilizes only pen position trajectories. The algorithm is an improvement in our previous work [9]. In preliminary experiments, the equal error rate (EER) was 1.2...

In on-line signature verification, complexity of signature shape can influence the value of the optimal threshold for individual signatures. If writer-dependent threshold selection is not possible, some threshold equalization method based on the complexity of signatures is needed. In this paper, we propose three different threshold equalization methods based on (i) average number of samples, (i...

One-time signature schemes have found numerous applications: in ordinary, on-line/off-line, and forward-secure signatures. More recently, they have been used in multicast and broadcast authentication. We propose a one-time signature scheme with very efficient signing and verifying, and short signatures. Our scheme is well-suited for broadcast authentication, and, in fact, can be viewed as an im...

This paper describes an efficient and secure online and offline signature scheme for wireless sensor network (WSN). Security of the proposed scheme is based on difficulty of breaking Bilinear Diffie-Hellman problem (BDHP). WSN systems are usually deployed in hostile environments where they encounter a wide variety of malicious attacks. Information that is the cooked data collected within the se...

Most of current speaker recognition systems are based on features extracted from the magnitude spectrum of speech. However the excitation signal produced by the glottis is expected to convey complementary relevant information about the speaker identity. This paper explores the use of two proposed glottal signatures, derived from the residual signal, for speaker identification. Experiments using...

In the process of handwritten signature recognition, preprocessing is an important step before calculation its informative features. Signatures any person always have some differences, in addition, they can be different colors, sizes and orientations. After digitization, their images may contain noise. The purpose image to obtain most invariant representation digital a person's signature, which...