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97번째 줄: | 97번째 줄: | ||
===소스=== | ===소스=== | ||
<references /> | <references /> | ||
+ | |||
+ | ==메타데이터== | ||
+ | ===위키데이터=== | ||
+ | * ID : [https://www.wikidata.org/wiki/Q1968605 Q1968605] | ||
+ | ===Spacy 패턴 목록=== | ||
+ | * [{'LOWER': 'secure'}, {'LOWER': 'hash'}, {'LOWER': 'algorithm'}, {'LEMMA': '2'}] | ||
+ | * [{'LEMMA': 'sha-224'}] | ||
+ | * [{'LEMMA': 'sha-256'}] | ||
+ | * [{'LEMMA': 'sha-384'}] | ||
+ | * [{'LEMMA': 'sha-512'}] | ||
+ | * [{'LEMMA': 'SHA-2'}] | ||
+ | * [{'LEMMA': 'SHA2'}] | ||
+ | * [{'LOWER': 'sha'}, {'LEMMA': '2'}] |
2021년 2월 17일 (수) 01:19 기준 최신판
노트
위키데이터
- ID : Q1968605
말뭉치
- and SHA-512/t (including SHA-512/224 and SHA-512/256).[1]
- For SHA-512/t (t must satisfy 1 ≤ t ≤ 511 and t ≠ 384.[1]
- Making a hash of a password with one of the algorithms of the SHA-2 family and keeping it, is not recommended.[1]
- The 256 in SHA-256 represents the bit size of the hash output or digest when the hash function is performed.[2]
- Not all software supports every digest size within the SHA-2 family.[2]
- Most browsers, platforms, mail clients, and mobile devices already support SHA-2.[2]
- However, some older operating systems such as Windows XP pre-SP3 do not support SHA-2 encryption.[2]
- The second version of SHA, called SHA-2, has many variants.[3]
- The SHA-256 algorithm returns hash value of 256-bits, or 64 hexadecimal digits.[3]
- SHA-2 provides better prevention against collision, meaning the same input data always has a different hash value.[4]
- Because of weaknesses in the SHA-1 algorithm and to align to industry standards, we have changed the signing of Windows updates to use the more secure SHA-2 algorithm exclusively.[4]
- Any devices without SHA-2 support will not be able to install Windows updates on or after July 2019.[4]
- To help prepare you for this change, we released support for SHA-2 signing in starting March 2019 and have made incremental improvements.[4]
- (National Institure of Standards and Technology), of which SHA-2 and SHA-3 algorithm families are considered secure and are used in numerous applications today.[5]
- Its days are numbered and the SSL industry is migrating to SHA-2.[6]
- The most common hash function used is SHA-256.[6]
- The hard work required to transition from SHA-1 to SHA-2 has already been taken care of.[6]
- In any case, your SSL certificate must use SHA-2 from January 1st, 2017, and all Certification Authorities are currently ensuring you can purchase SHA-2 certificates from now on.[6]
- “The variety of SHA-2 hashes can lead to a bit of confusion, as websites and authors express them differently.[7]
- If you see “SHA-2,” “SHA-256” or “SHA-256 bit,” those names are referring to the same thing.[7]
- those are referring to the alternate bit-lengths of SHA-2.[7]
- All end user SSL/TLS certificates must use SHA2, but owing to their ubiquity and age, intermediates may still use SHA1 in some cases.[7]
- SHA-256 sets additional constants that define the behavior of the SHA-2 algorithm.[8]
- (Secure Hash Algorithm 2), of which SHA-256 is a part, is one of the most popular hashing algorithms out there.[9]
- SHA-2 is known for its security (it hasn’t broken down like SHA-1), and its speed.[9]
- SHA-2 is a very famous and strong family of hash functions, as as you would expect, it fulfills all of the above purposes.[9]
- SHA-256 sets additional constants that define the SHA-2 algorithm’s behavior.[9]
- After the unfortunate incident with the SHA-1 algorithm in 2015, the industry started moving away from SHA-1 and mostly shifted to SHA-2.[10]
- SHA 2, known as Secure Hashing Algorithm – 2, is also a mathematical cryptographic hash function.[10]
- The SHA2 hash is extensively used for encryption-decryption in security protocols and programs like SSL, TLS, S/MIME, and many more.[10]
- Secure hashing algorithm – 256, commonly known as SHA256, is a member of the SHA-2 algorithm family, as discussed above.[10]
- For example: use sha256() to create a SHA-256 hash object.[11]
- SHA-2 is part of the so-called "cryptographic hash algorithms" that can generate.[12]
- They differ in the word size; SHA-256 uses 32-byte words where SHA-512 uses 64-byte words.[13]
- There are also truncated versions of each standard, known as SHA-224 , SHA-384 , SHA-512/224 and SHA-512/256 .[13]
- customers prepare for and move to SHA-2, the set of cryptographic hash functions that have succeeded SHA-1.[14]
- Last year, moving to SHA-2 ahead of the global deadline was a nice-to-do preparatory step.[14]
- Because of the continued success against SHA-1, the NSA and NIST identified its related successor, SHA-2, as the new recommended hashing standard in 2002.[14]
- SHA-2 is the cryptographic hashing standard that all software and hardware should be using now, at least for the next few years.[14]
- Definition - What does Secure Hash Algorithm 2 (SHA-2) mean?[15]
- SHA-2 includes significant changes from its predecessor, SHA-1.[16]
- and SHA-512 are novel hash functions computed with 32-bit and 64-bit words, respectively.[16]
- SHA-224 and SHA-384 are truncated versions of SHA-256 and SHA-512 respectively, computed with different initial values.[16]
- SHA-2 was first published by the National Institute of Standards and Technology (NIST) as a U.S. federal standard (FIPS).[16]
- In the “DNA initialization and preprocessing” section, we show how initialization and preprocessing operations, especially in SHA-512, are imitated in DNA computing.[17]
- (left shift by k<2m bits) in SHA-2 to be \(\bar {L}^{k}(\alpha)\) in DNSHA-2.[17]
- The nucleotide block i\(\bar {M}^{(i)}\) (of 512 nucleotides) in DNSHA-512 has to imitate the 1024-bit block M(i) in SHA-512.[17]
- The variety of SHA-2 hashes can lead to a bit of confusion, as websites and authors express them differently.[18]
- Occasionally you will see certificates using SHA-2 384-bit.[18]
- SHA-2 will likely remain in use for at least five years.[18]
- It involved re-issuing thousands of existing certificates so that new files could be created and signed with SHA-2.[18]
- Currently only the four fixed-length SHA-3 algorithms are approved hash algorithms, providing alternatives to the SHA-2 family of hash functions.[19]
- The SHA-2 family consists of multiple closely related hash functions.[20]
- SHA-256 generates an almost-unique 256-bit (32-byte) signature for a text.[21]
- SHA-256 is one of the successor hash functions to SHA-1 (collectively referred to as SHA-2), and is one of the strongest hash functions available.[21]
- SHA-256 is not much more complex to code than SHA-1, and has not yet been compromised in any way.[21]
- and SHA-512, for computing a condensed representation of a message or a data file.[22]
- < 2^128 bits (for SHA-384 and SHA-512) is input to one of these algorithms, the result is an output called a message digest.[22]
- The SHA-224 and SHA-256 algorithms produce 224-bit and 256-bit * message digests for a given data stream.[22]
- SHA-256 are defined in terms of 32-bit "words".[22]
- What role does SHA-256 hashing play in cybersecurity?[23]
- SHA-256 is used in some of the most popular authentication and encryption protocols, including SSL, TLS, IPsec, SSH, and PGP.[23]
- In Unix and Linux, SHA-256 is used for secure password hashing.[23]
- Cryptocurrencies such as Bitcoin use SHA-256 for verifying transactions.[23]
- SHA-2 is a family of hashing algorithms to replace the SHA-1 algorithm.[24]
- SHA-2 features a higher level of security than its predecessor.[24]
- Entrust is introducing the SHA-256 variant of the SHA-2 family as a signing option for all certificates.[24]
- One of the major benefits of using SHA-2 is that it addresses some weaknesses in the SHA-1 hashing algorithm.[24]
- We use SHA-256 because this 256-bit key is much more secure than other common hashing algorithms.[25]
- SHA-256 is an industry standard that is trusted by leading public-sector agencies and used widely by technology leaders.[25]
- There are 2 possible hash values when using SHA-256, which makes it nearly impossible for two different documents to coincidentally have the exact same hash value.[25]
- It’s also why we use SHA-256.[25]
- const uint8_t *message, uint32_t *intermediateDigest, uint32_t hashAlgorithm, uint32_t initialMessageLength) Start a new SHA-2 hash operation.[26]
- (const uint8_t *message, uint32_t *intermediateDigest, uint32_t hashAlgorithm, uint32_t intermediateMessageLength) Resume a SHA-2 hash operation but do not finalize it.[26]
- , uint32_t totalMsgLength, uint32_t messageLength, uint32_t hashAlgorithm) Resume a SHA-2 hash operation and finalize it.[26]
- Start a SHA-2 hash operation and return the finalized digest.[26]
- SHA-2 is a set of secure hash functions including SHA 224, SHA 256, SHA 384, and SHA 512 developed by the NSA intended to provide a higher level of security than the SHA-1 algorithm.[27]
- The SHA-2 algorithm is computationally more complex the SHA 1, relying on carry propagate additions as well as logical operations and rotates.[27]
- A critical path for a round of SHA-2 operations consists of four consecutive propagate additions with adder inputs being determined by complex logical and rotation functions.[27]
- 1 depicts details of the SHA-2 algorithm.[27]
- The SHA-256 algorithm generates an almost-unique, fixed-size 256-bit (32-byte) hash.[28]
- NIST released SHA-3 in 2015, so there are not quite as many SHA-3 libraries as SHA-2 for the time being.[28]
- SHAs come in three forms: SHA-1, SHA-2, and SHA-256. SHA-1 is the first iteration of the algorithm, followed by SHA-2, which is seen as an improved and updated version of the first.[29]
- While SHA-1 is the more basic version of the hash providing a shorter code with fewer possibilities for unique combinations, SHA-2 or SHA-256 creates a longer, and thus more complex, hash.[29]
- By 2016, it became mandatory for SHA-2 to be used for all new certificates.[29]
- Since the switch to SHA-2 was only made two years ago, there are tons of websites that still communicate using the first version of the hashing algorithm.[29]
- While hash generated by SHA2 is strong.[30]
- Tech giants including Microsoft, Google, and Mozilla are all aboard with SHA-2.[31]
- From the image above, this site uses SHA-256, which is the most popular hash function.[31]
- Unlike SHA-1 which was found to be susceptible to collision attacks, SHA-2 is collision-resistant.[31]
- If you plan on installing a SHA 2 Certificate, make sure that you’re using it on a compatible server.[31]
소스
- ↑ 1.0 1.1 1.2 Package
- ↑ 2.0 2.1 2.2 2.3 Pos Digicert Sdn Bhd
- ↑ 3.0 3.1 MD5 vs SHA-1 vs SHA-2 - Which is the Most Secure Encryption Hash and How to Check Them
- ↑ 4.0 4.1 4.2 4.3 Secure Hash Algorithm 2 (SHA-2)
- ↑ Peace of mind in a dangerous world.
- ↑ 6.0 6.1 6.2 6.3 What is SHA-1 / SHA-2 ?
- ↑ 7.0 7.1 7.2 7.3 SHA1 vs SHA2 vs SHA256 – What’s the difference?
- ↑ How the SHA-2 (SHA-256) Hashing Algorithm Works
- ↑ 9.0 9.1 9.2 9.3 How SHA-2 Works Step-By-Step (SHA-256)
- ↑ 10.0 10.1 10.2 10.3 The Difference Between SHA-1, SHA-2 and SHA-256 Hash Algorithms
- ↑ hashlib — Secure hashes and message digests — Python 3.9.1 documentation
- ↑ Secure Hash Algorithm 2
- ↑ 13.0 13.1 Secure Hash Algorithms
- ↑ 14.0 14.1 14.2 14.3 All you need to know about the move from SHA-1 to SHA-2 encryption
- ↑ What is the Secure Hash Algorithm 2 (SHA-2)?
- ↑ 16.0 16.1 16.2 16.3 Wikipedia
- ↑ 17.0 17.1 17.2 Secure Hash Algorithm-2 formed on DNA
- ↑ 18.0 18.1 18.2 18.3 The Difference Between SHA-1, SHA-2 and SHA-256 Hash Algorithms
- ↑ Hash Functions
- ↑ SHA-2 – Algorithm Hall of Fame
- ↑ 21.0 21.1 21.2 Movable Type Scripts
- ↑ 22.0 22.1 22.2 22.3 US Secure Hash Algorithms (SHA and HMAC-SHA)
- ↑ 23.0 23.1 23.2 23.3 SHA-256 Algorithm Overview
- ↑ 24.0 24.1 24.2 24.3 What is SHA-2?
- ↑ 25.0 25.1 25.2 25.3 Why You Should Use SHA-256 in Evidence Authentication
- ↑ 26.0 26.1 26.2 26.3 CC26xx Driver Library: [sha2.h Secure Hash Algorithm 2]
- ↑ 27.0 27.1 27.2 27.3 US20170147340A1 - Method and apparatus to process sha-2 secure hashing algorithm - Google Patents
- ↑ 28.0 28.1 SHA-256 Hashing in Java
- ↑ 29.0 29.1 29.2 29.3 The Difference Between Sha-1, Sha-2, Sha-256
- ↑ Difference between SHA1 and SHA2
- ↑ 31.0 31.1 31.2 31.3 What is SHA2 and What Are SHA 2 SSL Certificates?
메타데이터
위키데이터
- ID : Q1968605
Spacy 패턴 목록
- [{'LOWER': 'secure'}, {'LOWER': 'hash'}, {'LOWER': 'algorithm'}, {'LEMMA': '2'}]
- [{'LEMMA': 'sha-224'}]
- [{'LEMMA': 'sha-256'}]
- [{'LEMMA': 'sha-384'}]
- [{'LEMMA': 'sha-512'}]
- [{'LEMMA': 'SHA-2'}]
- [{'LEMMA': 'SHA2'}]
- [{'LOWER': 'sha'}, {'LEMMA': '2'}]