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IEEE/ICACT20230059 Slide.14        [Big Slide]       [YouTube]	Oral Presentation
	The graph on this slide presents the length of the SSL/TLS keys used by Brazilian Higher Education Institutions. It shows that the majority of HEIs use either 2048-bit RSA (65.23%) or 256-bit ECC (9.69%) keys, which are considered secure and of high quality. However, the results also indicate a timid use of 3072-bit RSA (3.20%) and 384-bit ECC (0.44%) keys, which offer even more protection due to their longer length. It's worth mentioning that there is only one institution that uses a 1024-bit RSA key, which is considered absurdly insecure. These results suggest that there is still room for improvement in the level of security offered by Brazilian HEIs.

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