ii. Assume that Bob is sending a message to Alice. The figure below shows the operationsthat Bob must perform to digitally sign the message. In addition, to digitally sign, Bob wantsthe actual message to be encrypted. Provide a revised block diagram showing theoperations that Bob must perform to digitally sign and encrypt the message. Also, provide adiagram which shows the corresponding operations that Alice must perform on the packagereceived from Bob.[8 Marks]largemessagemH: HashFunction-H(m)Bob'sprivatedigitalsignaturekey KB(encrypt)encryptedmessage digestKB(H(m))iii. Consider Rivest-Shamir-Adleman (RSA) with p=5 and q=11. Let e be 3 and d be 27.Assume that c denotes the ciphertext, c=17. Show all work and identify what was theoriginal message.

Answered: ii. Assume that Bob is sending a…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The two spectra below correspond to 2-butanol (CH3CH2CH(OH)CH3) its isomer, 2-methyl-1-propanol ((CH3)2CHCH2OH). Draw these two isomers, and assign the correct spectrum to each isomer. Explain what spectral data you used to reach your conclusion.
Lesson 12 Learning Objectives (These questions earn EA12, EC12, and and bonus EA01 & EC01 points) Quantify the properties of light when treated as a collection of particles, called photons. Quantitatively describe the wave-like properties of electromagnetic radiation. 1 & 2. One type of sunburn occurs when skin is exposed to UV light of wavelength in the vicinity of 310 nm. a) What is the energy of a photon of this wavelength? Express your answer in joules to three significant figures. b) What is the energy of a mole of these photons? Express your answer in joules per mole to three significant figures. c) How many photons are in a 1.10 mJ burst of this radiation? Express the number of photons to three significant figures. d) These UV photons can break chemical bonds in your skin to cause sunburn (a form of radiation damage). If the 310 nm radiation provides exactly the energy to break an average chemical bond in the skin, estimate the average energy of these bonds in kJ/mol. Express…
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The velocity selector in the problem prior to this one is used in a mass spectrometer. Protons(with zero neutrons) are the most common hydrogen nuclei. Some hydrogen isotopes, however, haveeither one or two neutrons in addition to the proton. If a beam of hydrogen nuclei is shot into amagnetic eld of strength 2.0T and the nuclei do a u-turn after which they strike a detector, how farapart will the three isotopes be on the detector surface? Assume both protons and neutrons have amass of 1:67 10?27kg and e = 1:60 10?19C.Cont.
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toSave Paste Home Insert Draw Design Layout References Mailings Review View Help X US S Clipboard F 1 ge 2 of 4 1 4. Font Problem Set 5 - Chapter 5 Paragraph 2 A Styles 24 of 491 words Styles F Editing 3 Dictate Text Predictions: On Voice N: (g) + O2(g) → 2 NO (R) AH--180.5 kJ N2(g) + 3 H2(g) → 2 NHI(g) AH = -91.8 kJ 2 H2(g) + O2(g) → 2 H₂O (g) AH = -483.6 kJ Aidan Tomlinson AT 4 3. Calculate AH for the reaction 4 NO (g) + 6 H2O (g) →4 NH3(g) + 5 O: (g), from the following data. Editor Calculate AH for the reaction 2 Al (s) + 3 Ch (g) 2 AICI (s). given: 2 Al (s) + 6 HCl(aq) → 2 AICh (aq) + 3 H2(g) AH-1049. kJ HCI (g) → HCl (as) H: (g) + Ch (g) → 2 HCl (g) AICE (s) → AICia (94) AH--74.8 kJ AH-1845. kJ AH = -323. kl Focus F12 Reuse Files Editor Reuse Files FA 5 Editin 10:35 10/29/2 DELE
The students conducted the assay for LDH activity using the two serum samples. Each cuvette (path length 1 cm) contained 3ml of a suitable assay buffer (including pyruvate as substrate). 20 microlitres of either serum was added to the cuvette and the absorbance values immediately recorded at the optimum wavelength for a period of 5 minutes (absorbance readings taken every 30 seconds). Protein concentration of serum sample (mg/ml) Change in absorbance at optimum wavelength per minute Control serum (C) 8 -0.04 Diseased serum (D) 7.8 -0.6 1c. Using the molar absorption coefficient of NADH as 6220 M-1 cm-1, and by application of the Beer-Lambert law, estimate the enzyme activity in the two samples (C and D). Express activity as moles per second. 1d. Estimate the specific activity of the two samples (moles per second per microgram).

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