Researchers discover new side channel attack on low-end phones
Georgia Tech Researchers have now shown that one of the very measures meant to keep data secure on a low-end phone can enable attackers to steal it.
Sep 28, 2021
0
226
Georgia Tech Researchers have now shown that one of the very measures meant to keep data secure on a low-end phone can enable attackers to steal it.
Sep 28, 2021
0
226
Facebook on Friday began rolling out encryption for voice or video calls made through its Messenger texting app, ratcheting up privacy for users.
Aug 14, 2021
2
30
Is it easier to check that a solution to a problem is correct than it is to solve the problem?
Aug 12, 2021
0
390
Apple's announcement that it would scan encrypted messages for evidence of child sexual abuse has revived debate on online encryption and privacy, raising fears the same technology could be used for government surveillance.
Aug 6, 2021
2
4
For nearly two years, 68 United Nations member states—along with private enterprises, non-governmental organizations, technical communities and academics—participated in an open-ended working group on developments in ...
Jul 20, 2021
0
2
Russian authorities on Thursday ordered Facebook and the messaging app Telegram to pay steep fines for failing to remove banned content, a move that could be part of growing government efforts to tighten control over social ...
Jun 10, 2021
0
3
The global police sting against organised crime revealed on Tuesday will prove a landmark in the technological arms race with the underworld, an industry expert said.
Jun 8, 2021
0
0
The encrypted messaging app Telegram has raised over $1 billion by selling bonds to foreign investors, its Russia-born founder Pavel Durov said Tuesday.
Mar 23, 2021
0
4
Cloud computing has revolutionized the way files are stored and shared, and processing carried out from the corporate down to the individual private user level. Security remains a contentious issue. As such, there is an ongoing ...
Feb 19, 2021
0
6
Hackers broke into systems used by top US Treasury officials during a massive cyberattack on government agencies and may have stolen essential encryption keys, a senior lawmaker said Monday.
Dec 22, 2020
1
33
In cryptography, encryption is the process of transforming information (referred to as plaintext) using an algorithm (called cipher) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information (in cryptography, referred to as ciphertext). In many contexts, the word encryption also implicitly refers to the reverse process, decryption (e.g. “software for encryption” can typically also perform decryption), to make the encrypted information readable again (i.e. to make it unencrypted).
Encryption has long been used by militaries and governments to facilitate secret communication. Encryption is now commonly used in protecting information within many kinds of civilian systems. For example, in 2007 the U.S. government reported that 71% of companies surveyed utilized encryption for some of their data in transit. Encryption can be used to protect data "at rest", such as files on computers and storage devices (e.g. USB flash drives). In recent years there have been numerous reports of confidential data such as customers' personal records being exposed through loss or theft of laptops or backup drives. Encrypting such files at rest helps protect them should physical security measures fail. Digital rights management systems which prevent unauthorized use or reproduction of copyrighted material and protect software against reverse engineering (see also copy protection) are another somewhat different example of using encryption on data at rest.
Encryption is also used to protect data in transit, for example data being transferred via networks (e.g. the Internet, e-commerce), mobile telephones, wireless microphones, wireless intercom systems, Bluetooth devices and bank automatic teller machines. There have been numerous reports of data in transit being intercepted in recent years. Encrypting data in transit also helps to secure it as it is often difficult to physically secure all access to networks.
Encryption, by itself, can protect the confidentiality of messages, but other techniques are still needed to protect the integrity and authenticity of a message; for example, verification of a message authentication code (MAC) or a digital signature. Standards and cryptographic software and hardware to perform encryption are widely available, but successfully using encryption to ensure security may be a challenging problem. A single slip-up in system design or execution can allow successful attacks. Sometimes an adversary can obtain unencrypted information without directly undoing the encryption. See, e.g., traffic analysis, TEMPEST, or Trojan horse.
One of the earliest public key encryption applications was called Pretty Good Privacy (PGP), according to Paul Rubens. It was written in 1991 by Phil Zimmermann and was purchased by Network Associates (now PGP Corporation) in 1997.
There are a number of reasons why an encryption product may not be suitable in all cases. First, e-mail must be digitally signed at the point it was created to provide non-repudiation for some legal purposes, otherwise the sender could argue that it was tampered with after it left their computer but before it was encrypted at a gateway according to Paul. An encryption product may also not be practical when mobile users need to send e-mail from outside the corporate network.
This text uses material from Wikipedia, licensed under CC BY-SA