IPsec – An Introduction
... IPsec Negotiation Using IKE IKE negotiates IPsec tunnels between IPsec peers using one of three main methods: 1. Main mode using preshared key authentication followed by quick mode negotiation 2. Main mode using digital signature authentication followed by quick mode negotiation ...
... IPsec Negotiation Using IKE IKE negotiates IPsec tunnels between IPsec peers using one of three main methods: 1. Main mode using preshared key authentication followed by quick mode negotiation 2. Main mode using digital signature authentication followed by quick mode negotiation ...
154 kb - Mahopac Central School District
... use of conventional techniques & procedures & usually requires considerable ingenuity.. S2.1 Develop written plans for exploring phenomena or for evaluating guided by questions or proposed explanations they have helped formulate. S2.2 Share their research plans with others and revise them based on t ...
... use of conventional techniques & procedures & usually requires considerable ingenuity.. S2.1 Develop written plans for exploring phenomena or for evaluating guided by questions or proposed explanations they have helped formulate. S2.2 Share their research plans with others and revise them based on t ...
Attestation
... Protected Storage Embedding PCR values in blob ensures that only certain apps can decrypt data. e.g.: Messing with MBR or OS kernel will change PCR values. Why can’t attacker disable TPM until after boot, then extend PCRs with whatever he wants? Root of trust: BIOS boot block. Gaping hole: role ...
... Protected Storage Embedding PCR values in blob ensures that only certain apps can decrypt data. e.g.: Messing with MBR or OS kernel will change PCR values. Why can’t attacker disable TPM until after boot, then extend PCRs with whatever he wants? Root of trust: BIOS boot block. Gaping hole: role ...
doc.gold.ac.uk
... • Today’s computing – Requires comprehensive computer security plans Electronic Commerce, Tenth Edition ...
... • Today’s computing – Requires comprehensive computer security plans Electronic Commerce, Tenth Edition ...
21. immobilizer system (hiss)
... • Keep the immobilizer key away from the other vehicle's immobilizer key when using it. The jamming of the key code signal may occur and the proper operation of the system will be obstructed. • The key has built-in electronic part (transponder). Do not drop and strike the key against a hard material ...
... • Keep the immobilizer key away from the other vehicle's immobilizer key when using it. The jamming of the key code signal may occur and the proper operation of the system will be obstructed. • The key has built-in electronic part (transponder). Do not drop and strike the key against a hard material ...
離散對數密碼系統 - 國立交通大學資訊工程學系NCTU Department of
... – Compute L1 = {(i, gmi), i = 0, 1, …, m-1} L2 = {(i, ag-i), i = 0, 1, …, m-1} – where m = ceiling((p-1) ½) Sort L1 and L2 with respect to the 2nd coordinate. – Find the same 2nd coordinate from L1 and L2, say, (q, gmq), (r, ag-r), to get gmq =ag-r. So a = gmq + r and x=mq+r. – Time complexity O(mlo ...
... – Compute L1 = {(i, gmi), i = 0, 1, …, m-1} L2 = {(i, ag-i), i = 0, 1, …, m-1} – where m = ceiling((p-1) ½) Sort L1 and L2 with respect to the 2nd coordinate. – Find the same 2nd coordinate from L1 and L2, say, (q, gmq), (r, ag-r), to get gmq =ag-r. So a = gmq + r and x=mq+r. – Time complexity O(mlo ...
Statistical Models for Steganography - uni
... Binary partition (C0, C1) of the set C of possible cover texts Alice is active if and only if the observed message ‘c’ is contained in C1. Type II error Eve fails to detect ...
... Binary partition (C0, C1) of the set C of possible cover texts Alice is active if and only if the observed message ‘c’ is contained in C1. Type II error Eve fails to detect ...
Application Security within Java 2, Standard Edition (J2SE)
... because decisions made by the application developer within the application programming logic affect how the application is secured. An example of programmatic security is a web page which makes decisions on which content to show a user based on the user’ s attributes. For example, an employee logs o ...
... because decisions made by the application developer within the application programming logic affect how the application is secured. An example of programmatic security is a web page which makes decisions on which content to show a user based on the user’ s attributes. For example, an employee logs o ...
Chapter 1 Security Problems in Computing
... Popular Encryption Algorithms – Merkle-Hellman Knapsacks – RSA Encryption – El Gamal Algorithms – DES Hashing Algorithms ...
... Popular Encryption Algorithms – Merkle-Hellman Knapsacks – RSA Encryption – El Gamal Algorithms – DES Hashing Algorithms ...
Chapter 10
... – Casual observer cannot detect anything of importance in container file – Two-step process • Encrypting file protects it from being read • Steganography makes it invisible ...
... – Casual observer cannot detect anything of importance in container file – Two-step process • Encrypting file protects it from being read • Steganography makes it invisible ...
Datasäkerhet/Data security EDA625 – Lect2 CRYPTOGRAPHY
... strong collision resistance: it is infeasable to find x,x’ such that h(x)=h(x’) ...
... strong collision resistance: it is infeasable to find x,x’ such that h(x)=h(x’) ...
Chapter 9 - EECS People Web Server
... strategies against their knowledge base to determine whether an attack has occurred These systems yield many more false-positive readings than do host-based IDSs, because they are attempting to read the network activity pattern to determine what is normal and what is not Management of Information ...
... strategies against their knowledge base to determine whether an attack has occurred These systems yield many more false-positive readings than do host-based IDSs, because they are attempting to read the network activity pattern to determine what is normal and what is not Management of Information ...
Protecting the FPGA Design From Common Threats
... Though the definition of zeroization involves a clear plus verification that all data was cleared, most applications will benefit from a zeroization which clears all memory cells of the FPGA. The Cyclone III LS zeroization solution breaks out the clear function and the verification function to provi ...
... Though the definition of zeroization involves a clear plus verification that all data was cleared, most applications will benefit from a zeroization which clears all memory cells of the FPGA. The Cyclone III LS zeroization solution breaks out the clear function and the verification function to provi ...
appendix a: wlan-related terminology - University of Houston
... combining a randomly generated IV with the key, the probability of two identical plain texts being encrypted into identical cipher texts is minimized. In WEP encryption the secret WEP key is combined with a 24-bit IV to create the key. RC4 takes this key as input and generates a key sequence equal t ...
... combining a randomly generated IV with the key, the probability of two identical plain texts being encrypted into identical cipher texts is minimized. In WEP encryption the secret WEP key is combined with a 24-bit IV to create the key. RC4 takes this key as input and generates a key sequence equal t ...
A Survey of BGP Security: Issues and Solutions
... • ASes Provide Policy/Topology Information • Constructs Global View of Routing Info ▫ ASes Query Information, Filter Invalid Routes ...
... • ASes Provide Policy/Topology Information • Constructs Global View of Routing Info ▫ ASes Query Information, Filter Invalid Routes ...
Organizations That Use TLS/SSL
... technical. For purposes of this discussion the protocols are basically identical, so we will lump them together as TLS/SSL. TLS/SSL can be used to create a secure environment for web browsing, emailing, or other client-server applications. For example, TLS can be used to create a secure connection b ...
... technical. For purposes of this discussion the protocols are basically identical, so we will lump them together as TLS/SSL. TLS/SSL can be used to create a secure environment for web browsing, emailing, or other client-server applications. For example, TLS can be used to create a secure connection b ...
CH10
... – Calls Web bugs “clear GIFs” or “1-by-1 GIFs” • Graphics created in GIF format • Color value of “transparent,” small as 1 pixel by 1 pixel E-Business, Ninth Edition ...
... – Calls Web bugs “clear GIFs” or “1-by-1 GIFs” • Graphics created in GIF format • Color value of “transparent,” small as 1 pixel by 1 pixel E-Business, Ninth Edition ...
Chapter 12
... • If you want someone to send you secure data, give them your public key; you keep the private key • Secure Sockets Layer on the Internet is a common example of public key cryptography ...
... • If you want someone to send you secure data, give them your public key; you keep the private key • Secure Sockets Layer on the Internet is a common example of public key cryptography ...
Issue 43 Key RSC Discussion
... KeyRSC, the AC currently has no way to know precisely what the correct value is at the point at which message 3 is constructed. To work around this, LWAPP designers chose to have the AC simply set this value to 0. This decision does not affect the WTP, who maintains this counter; it only affects the ...
... KeyRSC, the AC currently has no way to know precisely what the correct value is at the point at which message 3 is constructed. To work around this, LWAPP designers chose to have the AC simply set this value to 0. This decision does not affect the WTP, who maintains this counter; it only affects the ...
Teaching Computer Security using Minix
... Set-UID escalates a process’s privilege Set-Nobody restricts a process’s privilege Set the effective user to “nobody” ...
... Set-UID escalates a process’s privilege Set-Nobody restricts a process’s privilege Set the effective user to “nobody” ...
CIS 5357 - FSU Computer Science
... If b’ = b, the attacker wins. If every attacker has only a negligible probability of success, we say that the scheme is secure under chosen-plaintext attacks. ...
... If b’ = b, the attacker wins. If every attacker has only a negligible probability of success, we say that the scheme is secure under chosen-plaintext attacks. ...
Electronic Commerce and Information Security
... into a block of ciphertext, but not by substituting one at a time for each character ...
... into a block of ciphertext, but not by substituting one at a time for each character ...
History of cryptography
Cryptography, the use of codes and ciphers to protect secrets, began thousands of years ago. Until recent decades, it has been the story of what might be called classic cryptography — that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids. In the early 20th century, the invention of complex mechanical and electromechanical machines, such as the Enigma rotor machine, provided more sophisticated and efficient means of encryption; and the subsequent introduction of electronics and computing has allowed elaborate schemes of still greater complexity, most of which are entirely unsuited to pen and paper.The development of cryptography has been paralleled by the development of cryptanalysis — the ""breaking"" of codes and ciphers. The discovery and application, early on, of frequency analysis to the reading of encrypted communications has, on occasion, altered the course of history. Thus the Zimmermann Telegram triggered the United States' entry into World War I; and Allied reading of Nazi Germany's ciphers shortened World War II, in some evaluations by as much as two years.Until the 1970s, secure cryptography was largely the preserve of governments. Two events have since brought it squarely into the public domain: the creation of a public encryption standard (DES), and the invention of public-key cryptography.