ISRO2009-6

Question

$\textsf{SHA-1}$ is a

• A. encryption algorithm
• B. decryption algorithm
• C. key exchange algorithm
• D. message digest function

Answer 1

SHA -- Message digest function even MD5

RSA -- Encryption and decryption

Diffie Hellman - Key exchange algorithm

Answer 2

 SHA-1 produces a 160-bit (20-byte) hash value known as a message digest