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Crypto-shredding or crypto erase (cryptographic erasure) is the practice of rendering encrypted data unusable by deliberately deleting or overwriting the encryption keys: assuming the key is not later recovered and the encryption is not broken, the data should become irrecoverable, effectively permanently deleted or "shredded". [1]
The Database Encryption Key is used to encrypt the underlying database files with either the AES or 3DES cipher. The master database that contains various system level information, user accounts and management services is not encrypted. During database backups, compression occurs after encryption. Due to the fact that strongly encrypted data ...
Data encryption, which prevents data visibility in the event of its unauthorized access or theft, is commonly used to protect data in motion and increasingly promoted for protecting data at rest. [9] The encryption of data at rest should only include strong encryption methods such as AES or RSA. Encrypted data should remain encrypted when ...
^15 Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits data to a service provider. Recent backups are retained locally, to speed data recovery operations.
Cloud service users can encrypt data that is processed or stored within the cloud to prevent unauthorized access. [12] [13] Cryptographic encryption mechanisms are certainly the best options. In addition, authentication and integrity protection mechanisms ensure that data only goes where the customer wants it to go and it is not modified in ...
Disk encryption refers to encryption technology that encrypts data on a hard disk drive. Disk encryption typically takes form in either software (see disk encryption software) or hardware (see disk encryption hardware). Disk encryption is often referred to as on-the-fly encryption (OTFE) or transparent encryption.
The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS [1] that provides filesystem-level encryption.The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
Searchable encryption is a cryptographic system that offers secure search functions over encrypted data. [40] [41] SE schemes can be classified into two categories: SE based on secret-key (or symmetric-key) cryptography, and SE based on public-key cryptography. In order to improve search efficiency, symmetric-key SE generally builds keyword ...