Recall that the sponge construction describes how to turn a public random permutation into a cryptographic hash function. Once the data to be hashed has been absorbed, the next step is to "squeeze" the hash result out r bits at a time. blk = result of absorbing phase while not done: output the first r bits of blk (or less if less required) blk = p(blk) %3D As a convenient (but not secure because it's too small) public random permutation, lets use the AES S-box for p. What is the hash output if the result of the absorbing phase is blk = 3A and r=4, and a 10 bit hash output is required? Give your answer as exactly 10 binary digits with no spaces (eg, 0010100011).
Recall that the sponge construction describes how to turn a public random permutation into a cryptographic hash function. Once the data to be hashed has been absorbed, the next step is to "squeeze" the hash result out r bits at a time. blk = result of absorbing phase while not done: output the first r bits of blk (or less if less required) blk = p(blk) %3D As a convenient (but not secure because it's too small) public random permutation, lets use the AES S-box for p. What is the hash output if the result of the absorbing phase is blk = 3A and r=4, and a 10 bit hash output is required? Give your answer as exactly 10 binary digits with no spaces (eg, 0010100011).
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![Table 4.3 AES S-Box: Substitution values in hexadecimal notation for input byte (xy)
1
4
8
А В
0| 63
7B F2 6B 6F
36 3F F7 CC 34
E
に82K出%m乃明为的从呢吓s
刀引配尔%妍路D唱卧姐阳D3明
合芝8幻的9况E印姐努么即a%高
0Eg九郎》以nnさm叭的相%巴品
配的沙不引助H配趴正的即你
に2日%8肥以以正昭心科及幻幻力
5822出国网函幻旺的%助多正为
52队好配过4088u明4
7E8%2男5巧口船犯心的阳外8
お#%以咀卧肠旺
88%8的函
引4见护29如吧48即
3仍%G从即田尔配gu0伍%=m
27883R8m和B年以打巧时%8
に犯即口路叭即心ga28%狂昭M
Sさ88856s品卧队刀引配](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0f84b485-5d6d-484c-881f-5450394bcf53%2Fb7ebeae3-459a-47df-aa02-795e5135de75%2Fvj9efb_processed.png&w=3840&q=75)
Transcribed Image Text:Table 4.3 AES S-Box: Substitution values in hexadecimal notation for input byte (xy)
1
4
8
А В
0| 63
7B F2 6B 6F
36 3F F7 CC 34
E
に82K出%m乃明为的从呢吓s
刀引配尔%妍路D唱卧姐阳D3明
合芝8幻的9况E印姐努么即a%高
0Eg九郎》以nnさm叭的相%巴品
配的沙不引助H配趴正的即你
に2日%8肥以以正昭心科及幻幻力
5822出国网函幻旺的%助多正为
52队好配过4088u明4
7E8%2男5巧口船犯心的阳外8
お#%以咀卧肠旺
88%8的函
引4见护29如吧48即
3仍%G从即田尔配gu0伍%=m
27883R8m和B年以打巧时%8
に犯即口路叭即心ga28%狂昭M
Sさ88856s品卧队刀引配
![Recall that the sponge construction describes how to turn a public random permutation into a
cryptographic hash function. Once the data to be hashed has been absorbed, the next step is to
"squeeze" the hash result outr bits at a time.
blk = result of absorbing phase
while not done:
output the first r bits of blk (or less if less required)
blk = p(blk)
As a convenient (but not secure because it's too small) public random permutation, lets use the
AES S-box for p. What is the hash output if the result of the absorbing phase is blk = 3A and r=4,
and a 10 bit hash output is required? Give your answer as exactly 10 binary digits with no spaces
(eg, 0010100011).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0f84b485-5d6d-484c-881f-5450394bcf53%2Fb7ebeae3-459a-47df-aa02-795e5135de75%2Fpkzkkte_processed.png&w=3840&q=75)
Transcribed Image Text:Recall that the sponge construction describes how to turn a public random permutation into a
cryptographic hash function. Once the data to be hashed has been absorbed, the next step is to
"squeeze" the hash result outr bits at a time.
blk = result of absorbing phase
while not done:
output the first r bits of blk (or less if less required)
blk = p(blk)
As a convenient (but not secure because it's too small) public random permutation, lets use the
AES S-box for p. What is the hash output if the result of the absorbing phase is blk = 3A and r=4,
and a 10 bit hash output is required? Give your answer as exactly 10 binary digits with no spaces
(eg, 0010100011).
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