That can't be true. Collision resistant just means the chance is really low, but not 0. Suppose you enumerate all possible hash values with each their different original message. Since the message length can be larger than n, you can then find a message whose hash is already in the list, ie., a collision!
Answer:
- Step1: Check If the number is Positive or Negative.
- Step2: If it is positive then save the sign of it as 0.
- Step3: If it is negative then save the sign of it as 1.
- Step4: Covert the negative number to Positive.
- Step5: Convert the IEEE 754 to Binary.
- Step6: convert the integer part into binary form
- Step7: Convert fractional part into binary form
- Step8: To convert Integer part, Devide the number by 2 and note down the reminder and Keep deviding unless dividend is less than 2
- Step9: copy all the reminders together
- Step10: Multiply decimal part by 2 unless fractional part is 0.
- Step11: By noting down integral part, keep multiplying decimal part by new value of 2 untill perfect number is reached.
- Step6: Find the Mantissa.
- Step7: Concatinate the Sign, exponent and the mantissa.
Explanation:
For Example : 20.75
First step (converting 50 (in base 10) to binary):
- No is Positive
- By dividing 20 by 2, which gives 10 with no remainder 0.
- Now Devide 10 by 2, which gives 5 with a remainder of 0.
- Now Devide 5 by 2, which gives 2 the reminder as 1
- Now Devide 2 by 2, which gives 1 with reminder as 0
- Now devide 1 by 2, which gives 0 with reminder as 1
- We read the result from bottom to top which is 10100
Second part is to convert 0.75 to binary:
- We have to multiply 0.75 by 2, which gives 1.5. We keep only the integer part, which is 1.
- Now, we do 1.5 - 1, which gives 0.5. Now, We multiply 0.5 by 2, which gives 1.
- Now we do 1 - 1, which gives 0.
- Reading from Top to bottom will give 110
Final Answer is : 10100.110
<span>A Pixel (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image.</span>
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