Abstract An authenticated encryption chip with novel nonce generation circuit was developed. This associates the contents and receiving time of plaintext. It will also generate overlapping power compensation for whole chip. The integrated fabricated under SMIC 180nm technology. Under 1.8V VDD, 100MHz global clock, consumption is about 14mW within 50k gates. test result exhibits more than 10 tim...

While mainstream symmetric cryptography has been dominated by block ciphers, we have proposed an alternative based on fixed-width permutations with modes built on top of the sponge and duplex construction, and our concrete proposal K . Our permutationbased approach is scalable and suitable for high-end CPUs as well as resource-constrained platforms. The la er is illustrated by the small K insta...

The digital signature provides the functions of integration, authentication, and non-repudiation for the signing message. In some applications, however, the signature only needs to be verified by some specified recipients while keeping the message secret from the public. The authenticated encryption schemes can be used to achieve this purpose. To protect the recipient’s benefit in the case of a...

Authenticated encryption schemes are important cryptographic primitives that received extensive attention recently. They can provide both confidentiality and authenticity services, simultaneously. Correlation power analysis (CPA) can be a thread for authenticated ciphers, similar to the any physical implementation of any other cryptographic scheme. In this paper, a three-step CPA attack against...

In this paper, we discuss using CTR mode, another standard encryption mode, to attack other standard encryption modes and using other standard encryption modes to attack CTR mode under the related-mode attack model. In particular, we point out that when the adversary has access to an oracle under one proper mode, then almost all other related-cipher modes, whether they are encryption modes or a...

Nested symmetric encryption is a well-known technique for low-latency communication privacy. But just what problem does this technique aim to solve? In answer, we provide a provable-security treatment for onion authenticated-encryption (onion-AE). Extending the conventional notion for authenticated-encryption, we demand indistinguishability from random bits and time-of-exit authenticity verific...