Podcast
Questions and Answers
Which of the following correctly defines the acronym SHA?
Which of the following correctly defines the acronym SHA?
- System Hash Architecture
- Strong Hash Application
- Secure Hash Algorithm (correct)
- Secure Hardware Algorithm
Which organization collaborated to develop the SHA family of hash functions?
Which organization collaborated to develop the SHA family of hash functions?
- IBM
- Microsoft
- NSA & NIST (correct)
What is the output length, in bits, of the SHA-1 hash function?
What is the output length, in bits, of the SHA-1 hash function?
- 160-bit (correct)
- 512-bit
- 256-bit
- 128-bit
What primary security flaw led to the deprecation of SHA-1?
What primary security flaw led to the deprecation of SHA-1?
Which specific SHA version is utilized in Bitcoin mining operations?
Which specific SHA version is utilized in Bitcoin mining operations?
What is the fundamental architectural difference between SHA-1/SHA-2 and SHA-3?
What is the fundamental architectural difference between SHA-1/SHA-2 and SHA-3?
Which variant within the SHA-2 family generates the longest hash output?
Which variant within the SHA-2 family generates the longest hash output?
In what year was SHA-3 officially standardized by NIST?
In what year was SHA-3 officially standardized by NIST?
Which type of cryptographic attack was a key design consideration in ensuring SHA-3's resistance?
Which type of cryptographic attack was a key design consideration in ensuring SHA-3's resistance?
Flashcards
What does SHA stand for?
What does SHA stand for?
Secure Hash Algorithm; a family of cryptographic hash functions.
Who developed SHA?
Who developed SHA?
NSA & NIST; They developed the SHA family of hash functions.
SHA-1 output length?
SHA-1 output length?
160-bit is the output length of SHA-1.
Why deprecate SHA-1?
Why deprecate SHA-1?
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SHA version in Bitcoin?
SHA version in Bitcoin?
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Structural SHA difference?
Structural SHA difference?
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SHA-2 longest output?
SHA-2 longest output?
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SHA-3 standardized?
SHA-3 standardized?
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SHA-3 resistance?
SHA-3 resistance?
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Study Notes
- SHA stands for Secure Hash Algorithm.
- The SHA family of hash functions was developed by the NSA & NIST.
- SHA-1 has an output length of 160-bits.
- SHA-1 was deprecated due to collision vulnerabilities.
- Bitcoin mining uses SHA-2 (SHA-256).
- SHA-3 uses Keccak sponge construction, while SHA-1 & SHA-2 employ Merkle-Damgård construction.
- SHA-2 variant SHA-512 produces the longest hash output.
- SHA-3 was officially standardized in 2012.
- SHA-3 is specifically designed to be resistant to length extension attacks.
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