Authenticated encryption schemes establish both privacy and authenticity. This paper specifies a family of the dedicated authenticated encryption schemes, Artemia. It is an online nonce-based authenticated encryption scheme which supports the associated data. Artemia uses the permutation based mode, JHAE, that is provably secure in the ideal permutation model. The scheme does not require the in...

Byzantine agreement is a fundamental issue in fault-tolerant and secure distributed computing. Protocols solving Byzantine agreement guarantee that a sender can transmit a value to a group of receivers consistently, even if some of the nodes, including the sender, are arbitrarily faulty. In the past, protocols for Byzantine agreement were generally either authenticated or non-authenticated. Non...

This document describes an additional content type for the Cryptographic Message Syntax (CMS) [CMS]. The authenticatedenveloped-data content type is intended for use with authenticated encryption modes, where an arbitrary content is both authenticated and encrypted. Also, some associated data in the form of authenticated attributes can also be authenticated. All of the various key management te...

This document describes an additional content type for the Cryptographic Message Syntax (CMS) [CMS]. The authenticatedenveloped-data content type is intended for use with authenticated encryption modes, where an arbitrary content is both authenticated and encrypted. Also, some associated data in the form of authenticated attributes can also be authenticated. All of the various key management te...

An authenticated encryption allows the specific recipient to verify the authenticity while recovering the message. To protect the recipient’s interest in case of a later dispute, a convertible authenticated encryption scheme allows the specific recipient to retrieve an authenticated cipher text and convert the authenticated ciphertext into an ordinary signature so that it becomes publicly verif...

A (t,n) threshold authenticated encryption scheme allows more than t signers to generate an authenticated cipher-text for a message and only the designated verifier can verify the message. Recently, Chung et al. [1] proposed a (t, n) threshold authenticated encryption scheme by applying a division-of-labor signature technique. However, we showed that the scheme has a design flaw. Then, we propo...

Password-authenticated identities, where users establish username-password pairs with individual servers and use them later on for authentication, is the most widespread user authentication method over Internet. Although they are simple, user-friendly, broadly adopted, offer insecure position server operators as trusted parties, giving full control users’ identities. To mitigate these limitatio...