Topic
40-bit encryption
About: 40-bit encryption is a research topic. Over the lifetime, 5434 publications have been published within this topic receiving 149016 citations.
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IBM1
TL;DR: NBS was the first to embark on developing a standard encryp-tion algorithm that could satisfy a broad range of commercial and unclassified government requirements in information security and issued the Data Encryption Standard (DES) as Federal Information Processing Standard (FIPS) 46 on Novem-ber 23, 1977.
52 citations
TL;DR: This paper proposes an extension of a public-key cryptosystem to support a private key cryptos system which is a combination of Advanced Encryption Standard and ECC, and proposes a hybrid encryption scheme to increase competency and to minimize drawbacks.
52 citations
TL;DR: It is shown that the qubit block encryption algorithm can prevent quantum attacking strategy as well as classical attacking strategy, and the hybrid keys are securely reusable after a checking process, which lessens the task of key management significantly.
Abstract: By combining quantum key with classical one, a novel block cryptographic algorithm that can be applied to encrypt qubits is presented. The security of the algorithm is analyzed from several aspects. It is shown that the qubit block encryption algorithm can prevent quantum attacking strategy as well as classical attacking strategy. The hybrid keys are securely reusable after a checking process, which lessens the task of key management significantly. The proposed algorithm offers an alternative to the standard one-time-pad encryption of a quantum bit string using a quantum key.
52 citations
01 Dec 2011
TL;DR: This paper proposes a time-based re-encryption scheme, which enables the cloud servers to automatically re-Encrypt data based on their internal clocks, and is built on top of a new encryption scheme, attribute-based encryption, to allow fine-grain access control, and does not require perfect clock synchronization for correctness.
Abstract: A key approach to secure cloud computing is for the data owner to store encrypted data in the cloud, and issue decryption keys to authorized users. Then, when a user is revoked, the data owner will issue re-encryption commands to the cloud to re-encrypt the data, to prevent the revoked user from decrypting the data, and to generate new decryption keys to valid users, so that they can continue to access the data. However, since a cloud computing environment is comprised of many cloud servers, such commands may not be received and executed by all of the cloud servers due to unreliable network communications. In this paper, we solve this problem by proposing a time-based re-encryption scheme, which enables the cloud servers to automatically re-encrypt data based on their internal clocks. Our solution is built on top of a new encryption scheme, attribute-based encryption, to allow fine-grain access control, and does not require perfect clock synchronization for correctness.
52 citations
Patent•
07 Apr 2010TL;DR: In this paper, the authors present a method of verifying a password by decrypting a key bag and retrieving data from an encrypted file using an encryption key from the decrypted key bag, and verifying the password by comparing retrieved data with expected data.
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for encryption and key management The method includes encrypting each file on a computing device with a unique file encryption key, encrypting each unique file encryption key with a corresponding class encryption key, and encrypting each class encryption key with an additional encryption key Further disclosed are systems, methods, and non-transitory computer-readable storage media for encrypting a credential key chain The method includes encrypting each credential on a computing device with a unique credential encryption key, encrypting each unique credential encryption key with a corresponding credential class encryption key, and encrypting each class encryption key with an additional encryption key Also disclosed is a method of verifying a password by decrypting a key bag, retrieving data from an encrypted file using an encryption key from the decrypted key bag, and verifying the password by comparing retrieved data with expected data
52 citations