Military-Grade Encryption Explained (2024)

The very concept of Encryption raises a lot of questions to a person who has never had much to do with cybersecurity. Naturally, when you hear the term “military-grade encryption”, it gets even more confusing. But if you’re familiar with encrypted services, you might have heard this term a lot, especially in the context of various VPN services.

Contents

  • What is military-grade encryption?
  • Has AES ever been cracked?
  • How long will the AES last?
  • Do you need military-grade security?
  • Military-grade or AES-256?

Some cybersecurity experts may call this phrase a marketing gimmick. Others may argue that it conveys difficult concepts in an easy-to-understand way. But what does military-grade encryption really mean?

What is military-grade encryption?

Military-grade encryption refers to AES (Advanced Encryption Standard) with 256-bit keys. In 2001, AES was announced as the new standard for information security by the National Institute of Standards and Technology (NIST), a unit of the US Commerce Department.

Traditionally, military-grade encryption uses a key size equal to or greater than 128 bits. The US government specifies that AES-128 is used for secret (unclassified) information and AES-256 for top secret (classified) information. If an entity handles information on both levels, it usually adopts AES-256 as its standard.

To a person who is not particularly tech-savvy, these letters and numbers won't mean much. In an attempt to bring encryption to the masses, security companies started to look for a term that describes the highest-level security with less jargon. As AES is used by the US government to secure classified information and by the NSA to protect national security data, the term “military-grade” seemed suitable.

Has AES ever been cracked?

The AES-256 block cipher hasn't been cracked yet, but there have been various attempts against AES keys. The first key-recovery attack on full AES was published in 2011 by Andrey Bogdanov, Dmitry Khovratovich, and Christian Rechberger. They used the biclique attack, which is faster than a brute force attack by a factor of about four. However, it was a minor success. The 126-bit key is not widely used, as the lowest key in AES encryption contains 128 bits.

And it would still take billions of years to brute force the 126-bit key to crack it. That’s why this attempt doesn't spell danger for information encrypted with the AES. There is no known practical attack that would allow someone to access AES-encrypted data if encryption is implemented correctly.

How long will the AES last?

According to NIST, no one can be sure how long the AES or any other cryptographic algorithm will remain secure. However, NIST's Data Encryption Standard (known as DES) was a US government standard for approximately 20 years before it became hackable. The AES supports significantly larger key sizes than what DES supports. Barring any attacks against AES that are faster than key exhaustion, and even with future advances in technology, AES has the potential to remain secure well beyond 20 years.

Do you need military-grade security?

Many skeptics would say that you don't need it as other encryption algorithms would do a good job too. However, no industry or service is immune to attacks. And services that store sensitive information, such as passwords or financial data, should not apply anything less than the recommended standard.

Back when the NIST presented this standard to the public in 2001, they already expected that the private sector would widely adopt it. They saw and still see it as a benefit to millions of consumers and businesses for protecting their sensitive information.

So yes, if you want to show that you care about your users and their personal data, you must use the best encryption there is.

Military-grade or AES-256?

It's down to a personal choice. If you're a tech-savvy person, you may prefer the proper technical terms. But translating complex technological ideas into everyday language can be challenging. Therefore, you sometimes need to use popular terms to illustrate your message, so it reaches the user. If the term “military-grade” helps to close the communication gap, there’s no harm in using it.

Military-Grade Encryption Explained (2024)

FAQs

How does military grade encryption work? ›

Essentially, military grade encryption works by scrambling data into a mathematical algorithm and then encrypting it with a key. The key is generated using an advanced form of cryptography called public-key cryptography. This cryptography utilizes two different keys to secure the data.

Can a military grade encryption be cracked? ›

Military-grade data encryption or AES-256 block cipher has never been cracked, yet… Using an unencrypted email service such as Microsoft Outlook or Gmail to send private data could spell disaster if it falls into the wrong hands unless you use an email service that specializes in email encryption.

What encryption does the military use? ›

Military-grade encryption refers to AES (Advanced Encryption Standard) with 256-bit keys. In 2001, AES was announced as the new standard for information security by the National Institute of Standards and Technology (NIST), a unit of the US Commerce Department.

Has anyone cracked AES 256? ›

It would take someone over 2 billion years to crack an AES 256 encryption. It's computational size makes it almost impossible to crack, with just way too many possibilities. Even if the bruter could try 1000 passwords a second, the combinations would still take you thousands of years.

What encryption does the CIA use? ›

Operation Rubicon: How the CIA 'owned' encryption

Namely that the CIA and BND partnership added backdoors into the Crypto AG encryption products and used these for intelligence gathering purposes across the years. Intelligence gathering, it would appear, from both adversaries and allies.

What is the strongest military encryption? ›

Consequently, AES-128 was used for unclassified information and AES-256 for protecting secret, critically sensitive governmental information. AES is named military-grade because it is the most reliable currently-existing way to protect top-secret data, government, bank, and military included.

What is the hardest encryption to hack? ›

AES 256-bit encryption is the strongest and most robust encryption standard that is commercially available today. While it is theoretically true that AES 256-bit encryption is harder to crack than AES 128-bit encryption, AES 128-bit encryption has never been cracked.

What is the hardest encryption code? ›

AES is considered unbreakable by even the most sophisticated hackers. It is a symmetric block cipher and it is also used by online services like banking and online shopping.

Can FBI crack AES 256 encryption? ›

AES-256 is unbreakable by brute force

Data protected by AES 256 is unbreakable by brute force. It is the strongest encryption and is almost impossible to break. A brute force attack is when a hacker checks different key combinations until he/she arrives at the correct combination.

Can the FBI see encrypted messages? ›

It can see limited message content, basic user information, contacts, date and time info, encryption keys, sender and receiver information, and even your iCloud backups. Since iCloud stores non-encrypted message backups by default, that gives the FBI access to a lot of content.

How hard is it to crack 256-bit encryption? ›

It indicates that if a hacker wants to decrypt data encrypted with 256-bit encryption, they need 256 different amalgamations to crack the data. This is practically impossible to crack, and even the world's supercomputers may require many years to get the combination by trying the trial-error method.

Has the NSA break encryption? ›

And now, researchers from University of Pennsylvania, INRIA, CNRS and Université de Lorraine have practically proved how the NSA broke the most widespread encryption used on the Internet.

Which encryption Cannot be cracked? ›

In cryptography, the one-time pad (OTP) is an encryption technique that cannot be cracked, but requires the use of a single-use pre-shared key that is larger in size than or equal to the size of the message being sent.

Why can't AES be cracked? ›

AES brings additional security because it uses a key expansion process in which the initial key is used to come up with a series of new keys called round keys. These round keys are generated over multiple rounds of modification, each of which makes it harder to break the encryption.

Is AES easy to hack? ›

In fact, your AES system encryption is only as strong as its environment and the infrastructure surrounding it. Hackers may not be able to brute force your AES 256 algorithm, but they don't give up that fast. They can (and will) still be able to try and: Gain access to your AES 256 cryptographic keys.

Can the CIA tap my phone? ›

Is the CIA watching me through my phone? Your smartphone is no exception to CIA mass surveillance. In fact, Stingrays are used by law enforcement agencies to track citizens' movements and record conversations, text messages, names, and phone numbers.

Has the CIA code been cracked? ›

Artist Jim Sanborn built the copper sculpture, known as Kryptos, in a courtyard at the CIA headquarters in Langley, Virginia, US, in 1990. The CIA is the US spy agency. The code is made up of four passages, three of which have been solved by code breakers. The fourth and final passage has never been cracked.

Can FBI open encrypted files? ›

While the document confirms that the FBI can't gain access to encrypted messages sent through some services, the other type of information they can glean from providers might still help authorities in other aspects of their investigations.

What is the most secure U.S. Army base? ›

From books, history classes, and TV shows, most Americans know Fort Knox was built to store massive deposits of gold. It is the most heavily guarded military base and one of the most secure places in the world. Aside from what we know of its gold reserves, Fort Knox is a mystery that few have ever seen.

What encryption was used in world War 2? ›

The Enigma machine was the main source for secret communication for the Germans during World War II. Enigma's encoding process started by typing a letter of the plaintext into the keyboard.

Does AES 512 exist? ›

The new algorithm (AES-512) uses input block size and key size of 512-bits which makes it more resistant to cryptanalysis with tolerated area increase.

Who can crack 256-bit encryption? ›

256-bit encryption is refers to the length of the encryption key used to encrypt a data stream or file. A hacker or cracker will require 2256 different combinations to break a 256-bit encrypted message, which is virtually impossible to be broken by even the fastest computers.

Which one is a mathematically unbreakable encryption? ›

There is only one known unbreakable cryptographic system, the one-time pad, which is not generally possible to use because of the difficulties involved in exchanging one-time pads without their being compromised. So any encryption algorithm can be compared to the perfect algorithm, the one-time pad.

Can a hacker break encryption? ›

Hackers can break encryption to access the data using a number of different methods. The most common method is stealing the encryption key itself. Another common way is intercepting the data either before it has been encrypted by the sender or after it has been decrypted by the recipient.

Which type of encryption is the fastest strongest? ›

Strongest Data Encryption Algorithms
  • TripleDES.
  • Twofish encryption algorithm.
  • Blowfish encryption algorithm.
  • Advanced Encryption Standard (AES)
  • IDEA encryption algorithm.
  • MD5 encryption algorithm.
  • HMAC encryption algorithm.
  • RSA security.
Jan 17, 2020

What is the longest encryption key? ›

Advanced Encryption Standard (AES) keys are symmetric keys that can be three different key lengths (128, 192, or 256 bits). AES is the encryption standard that is recognized and recommended by the US government. The 256-bit keys are the longest allowed by AES.

What is the fastest encryption? ›

Advanced Encryption Standard (AES) Algorithm

The Advanced Encryption Standard is the most common and extensively used symmetric encryption algorithm that is likely to be encountered nowadays (AES). It has been discovered to be at least six times quicker than triple DES.

How long would it take a quantum computer to crack 256-bit encryption? ›

With the right quantum computer, AES-128 would take about 2.61*10^12 years to crack, while AES-256 would take 2.29*10^32 years.

How long would it take to brute force AES-256? ›

AES-256 encryption is virtually uncrackable using any brute-force method. It would take millions of years to break it using the current computing technology and capabilities. However, no encryption standard or system is completely secure.

Can FBI read end to end encryption? ›

With some exceptions, many major E2EE messaging services hand over all kinds of data to federal law enforcement, and cloud backups can even enable the disclosure of stored messages sent on two of the biggest E2EE messaging apps.

Can the FBI see me through my phone? ›

In the United States, the FBI has used "roving bugs", which entails the activation of microphones on mobile phones to the monitoring of conversations.

Can the FBI see through your screen? ›

Meinrath explained that the rumor regarding FBI surveillance was truer than some may believe. “The easy answer is yes, [the FBI] has the capability of [monitoring through laptop cameras],” Meinrath said. “The more complicated area is when and how.”

Can the NSA see my texts? ›

2. Big Tech passes your data to the NSA. Facebook, Google, Apple, and six other leading online services have all gone on record as having given their customers' data to the NSA, as legally required by the “PRISM” program. Data shared includes emails, messages, and documents.

How long to crack 512 bit encryption? ›

Andrew Swallow. > > 2003 ("within three years") a 512-bit key can be factored in a few days. > this latter case, you are still looking at 2-3 years to crack the key. key may be broken in a day.

Is AES 256 enough in terms of security for today's world? ›

It's virtually impossible to break AES-256 through brute force attacks, no matter how powerful the computer(s) involved in the process.

Can the NSA crack AES 256? ›

The 256-bit encryption is considered to be unbreakable using current technology and computational power. Theoretically, it would take billions of years for even the most powerful computers to brute force a 256-bit encryption key.

Can the NSA see my camera? ›

Government security agencies like the NSA can also have access to your devices through built-in back doors. This means that these security agencies can tune in to your phone calls, read your messages, capture pictures of you, stream videos of you, read your emails, steal your files … whenever they please.

Can the NSA bypass VPN? ›

No one has to "get past" a VPN. If you're in the US, and the VPN server is located in the US, the NSA just has to "request" the server logs. Then they see who connected to what when. If you're not in the US, you're not under the jurisdiction of the NSA, so they can look all they want, but they can't do anything.

Can the NSA see Tor? ›

The NSA creates "fingerprints" that detect http requests from the Tor network to particular servers. These fingerprints are loaded into NSA database systems like XKeyscore, a bespoke collection and analysis tool which NSA boasts allows its analysts to see "almost everything" a target does on the internet.

Can quantum computers break AES-128? ›

Any system using public-key encryption will be vulnerable to an attack by a quantum computer and systems using certain types of AES, such as AES-128, must double their current key length to be remain secure. This would drive the time required to break AES encryption up to 2.29*10^32 years.

Can 1024 bit encryption be broken? ›

Once cracked, an attacker can trivially crack any encryption made using this prime. This encryption backdoor can be used to decrypt communications encrypted using the Diffie-Hellman key exchange or to forge signatures using the DSA algorithm, which are both cornerstones of network and data security.

How long does it take to crack 1024 bit key? ›

If 45 bits took 33 ms, then 1024 bits will take approx. 2^1024 / 2^45 * 33ms = 5.34654 * 10^285 years.

Can AES be cracked by quantum computer? ›

In summary, our most important symmetric cryptographic tools (AES, SNOW 3G, SHA2, SHA3 and so on) remain secure against quantum computers as they are. This also applies to the authentication, key generation, encryption and integrity in 3G, 4G and 5G that rely purely on symmetric cryptography.

Can AES be cracked by quantum? ›

AES-128 and RSA-2048 both provide adequate security against classical attacks, but not against quantum attacks. Doubling the AES key length to 256 results in an acceptable 128 bits of security, while increasing the RSA key by more than a factor of 7.5 has little effect against quantum attacks.

What will replace AES encryption? ›

In fact, AES can easily replaced with stronger algorithms like, Twofish, Serpent, or newer ones like AEGIS and MORUS.

What is the weakness of AES? ›

The biggest problem with AES symmetric key encryption is that you need to have a way to get the key to the party with whom you are sharing data. Symmetric encryption keys are often encrypted with an asymmetric algorithm like RSA and sent separately.

What is AES security weakness? ›

Save this answer. Show activity on this post. The two main weaknesses where AES shows its age are the 128bit blocksize and the fact that AES 192 and 256 have far less security margin than the pure key size would suggest (some reasons for that here).

What is the weakness of AES encryption? ›

Drawbacks or disadvantages of AES

It uses too simple algebraic structure. ➨Every block is always encrypted in the same way. ➨Hard to implement with software. ➨AES in counter mode is complex to implement in software taking both performance and security into considerations.

Is military GPS encrypted? ›

Even though military GPS receivers are capable of being encrypted, the signals they receive from satellites are relatively weak. In fact, anyone can purchase a GPS jammer from the Internet.

Are military communications encrypted? ›

Most major militaries (such as the US Military) use off the shelf encryption algorithms with key lengths that vary depending on the levels of protected data's clearance (Sensitive, Classified, Secret, Top Secret, etc.). It's important that these algorithms are off the shelf or are otherwise public.

What is military grade VPN? ›

As its name says, military-grade VPN encryption is standard encryption used by military institutions. It is the highest AES encryption available.

How does SSD hardware encryption work? ›

Hardware encryption sits between the OS installed on the drive and the system BIOS. When the drive is first encrypted, an encryption key is generated and stored on the NAND flash. When the system is first booted, a custom BIOS is loaded and will ask for a user passphrase.

Can military GPS be jammed? ›

And while it is extremely hard to jam the encrypted GPS capabilities deployed by the US military, civilian users are not so lucky. “In terms of the civil versus military GPS … civil GPS is relatively easier to jam and spoof.

Can the US government turn off GPS? ›

No. Since it was declared operational in 1995, the Global Positioning System has never been deactivated, despite U.S. involvement in wars, anti-terrorism, and other military activities.

How does military GPS jamming work? ›

Since GPS receivers receive weak radio waves from the satellites, they can be easily be jammed or distorted by using stronger RF signals which mimic the signals received from the satellite by using a GPS jammer. GPS jammers were initially created by the government, for military organizations and spy agencies.

Can the government see encrypted data? ›

Because of warrant-proof encryption, the government often cannot obtain the electronic evidence and intelligence necessary to investigate and prosecute threats to public safety and national security, even with a warrant or court order.

Can NSA see encrypted messages? ›

NSA can see through encryption, including your private e-mail's, says report. More documents from former security contractor Edward Snowden show that the National Security Agency has been secretly working to gain a back door into all encryption technologies, The New York Times reports.

Are US police radios encrypted? ›

Every state has some form of tactical encryption. Where there is a private investigation, there is privatized communication. Tactical situations are assumed encrypted, such as police channels that involve: Drug enforcement.

Can government disable VPN? ›

Governments sometimes do not want their citizens to access certain websites, so they block these sites. With a VPN, it looks like your IP address is outside the country, making your access look legitimate. To counteract this, some governments block VPNs.

What is military-grade WIFI? ›

The military-grade satellite internet is designed to be highly secure and resistant to cyber-attacks. It is also designed to be resilient to natural disasters, such as hurricanes, floods, and earthquakes.

Does ExpressVPN use military-grade encryption? ›

Encrypt your data with military-grade encryption: ExpressVPN encrypts your data and hides your connection and identity by masking your data, IP, and traffic using its military-standard AES 256-bit encryption. Read more about its encryption and tunneling protocols below.

How do I know if my SSD is self encrypted? ›

If you purchased a standalone HDD or SDD, the packaging, instructions, or user manual will likely tell you if the drive is equipped with self-encryption.

How long does it take to encrypt a 1tb SSD? ›

So how long will encryption take?
500 GB drive17 hours
1 TB drive33 hours
2 Tb drive67 hours

Can hard drive encryption be broken? ›

2. Can encrypted data be hacked? The simple answer is yes, encrypted data can be hacked. However, the situation is not as straightforward or as simple as that.

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