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Column level encryption is a type of database encryption method that allows user to select specific information or attributes to be encrypted instead of encrypting the entire database file. To understand why column level encryption is different from other encryption methods like file level encryption , disk encryption , and database encryption ...
PBKDF2 is part of RSA Laboratories' Public-Key Cryptography Standards (PKCS) series, specifically PKCS #5 v2.0, also published as Internet Engineering Task Force's RFC 2898. It supersedes PBKDF1, which could only produce derived keys up to 160 bits long. [2] RFC 8018 (PKCS #5 v2.1), published in 2017, recommends PBKDF2 for password hashing. [3]
The MODX content management framework, as of version 2.0. The encryption and decryption schema of Zend Framework, to generate encryption and authentication keys. [17] Cisco IOS and IOS XE Type 4 password hashes [18] Firefox Sync for client-side password stretching [19]
Salting helps defend against attacks that use precomputed tables (e.g. rainbow tables), by vastly growing the size of table needed for a successful attack. [2] [3] [4] It also helps protect passwords that occur multiple times in a database, as a new salt is used for each password instance. [5] Additionally, salting does not place any burden on ...
PBKDF2 is for generating an encryption key from a password, and not necessarily for password authentication. PBKDF2 can be used for both if the number of output bits is less than or equal to the internal hashing algorithm used in PBKDF2, which is usually SHA-2 (up to 512 bits), or used as an encryption key to encrypt static data. [5]
Transparent data encryption (often abbreviated as TDE) is used to encrypt an entire database, [2] which therefore involves encrypting "data at rest". [4] Data at rest can generally be defined as "inactive" data that is not currently being edited or pushed across a network. [5]
A structured encryption scheme [1] is a symmetric-key encryption scheme that encrypts a data structure in such a way that, given the key and a query , one can generate a query token with which the encrypted data structure can be queried. If the STE scheme is dynamic then it also supports update operations like inserts and deletes.
The outcome of this process was the adoption of Adam Langley's proposal for a variant of the original ChaCha20 algorithm (using 32-bit counter and 96-bit nonce) and a variant of the original Poly1305 (authenticating 2 strings) being combined in an IETF draft [5] [6] to be used in TLS and DTLS, [7] and chosen, for security and performance ...