Abstract: A computerized system and method for symmetric encryption and decryption using two machines, the method including obtaining a message and an initialization vector on a first machine, sending the initialization vector to a second machine, where said second machine stores an encryption key for a Key Derivation Function (KDF), generating a derived key on the second machine by applying the KDF receiving as input both the encryption key and the initialization vector, sending the derived key from the second machine to the first machine, and encrypting the message using the derived key on the first machine.

Abstract: Preventing misuse of a cryptographic key by receiving a request to carry out a cryptographic operation using a cryptographic key from a requesting entity, distributing the request to a quorum comprising multiple computerized devices, receiving a decision from the multiple computerized devices on whether or not the cryptographic operation using the cryptographic key is allowed, and carrying out the cryptographic operation using the cryptographic key according to the decision from the multiple computerized devices.

Abstract: A method for recovering data from a database, the method performed by a device having a processor, the method including encrypting information stored in the database using an encrypting cryptographic key, sending encrypted information associated with a specific entity to a remote device associated with the specific entity, where the remote device lacks access to a decrypting cryptographic key enabled to decrypt the information associated with a specific entity, upon failure of the database, sending the encrypted information associated with the specific entity from the remote device to a recovering server, and decrypting the encrypted information by the recovering server.

Abstract: Preventing misuse of a cryptographic key by receiving a request to carry out a cryptographic operation using a cryptographic key from a requesting entity, distributing the request to a quorum comprising multiple computerized devices, receiving a decision from the multiple computerized devices on whether or not the cryptographic operation using the cryptographic key is allowed, and carrying out the cryptographic operation using the cryptographic key according to the decision from the multiple computerized devices.

Abstract: A computerized system and method for symmetric encryption and decryption using two machines, the method including obtaining a message and an initialization vector on a first machine, sending the initialization vector to a second machine, where said second machine stores an encryption key for a Key Derivation Function (KDF), generating a derived key on the second machine by applying the KDF receiving as input both the encryption key and the initialization vector, sending the derived key from the second machine to the first machine, and encrypting the message using the derived key on the first machine.