P. Carrion

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1. Waiter, please: There is a text in my audio Steganography literally means "covered writing", which is derived from the Greek στεγοσ (roof) and γραπηια (writing). Cryptography, watermarking and stenography are closely related [Johnson and Jajodia 1998]. This paper introduces the basis of a wavelet-based low-throughput secret key steganography system that(More)
In this paper we describe how to use a learning object repository in order to store large multimedia files that can been queried by students while they are at home preparing their digital electronic circuits and later at laboratory when they must mount and check them. The system is currently being tested under the pilot project carried out in Electronics(More)
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