A simulator for SHA-1

Plaintext (string):

Hash output(hex):

HMAC Construction using a "Dummy" Hash Function

HMAC construction

   Plaintext: 1100000000111100101010    

length of Initialization Vector (IV), l, 8 

          IV: 11001100   



      Key, k: 10000101   



ipad: 0x5C (01011100)
opad: 0x36 (00110110) 

Put your text of size 2l to get the corresponding value of hash of size l.

   Your text: 11001010   
Hashed value: 0011


Final Output: