VP, Sun Fellow, Chief Security Officer, Sun Microsystems. Public-Key Encryption. History: ... Originally designed for BBS use, now used mainly for email. ...
ONE-WAY PROPERTY: The public encryption function should be easy to compute ... inverse function (decryption) should be hard ... Possible application is e-cash. ...
the most difficult problems associated with conventional encryption. Key Distribution ... where is the Euler totient function. n = pq, p,q is prime. RSA scheme ...
2. Contents have not been altered, 3. Sometimes, it was sent at ... An authentication tag is generated and appended to each message. Message Authentication Code ...
Approaches to Message Authentication. Secure Hash Functions and HMAC ... An authentication tag is generated and appended to each message. Message Authentication Code ...
Joint work with Andre Scedrov, Aaron Jaggard, Joe-Kai Tsay, Christopher Walstad ... Doubly-inductive proof technique. Verify authentication using 'rank function' ...
Important Characteristic. Computationally infeasible to determine the KD given only knowledge of ... Any of keys can used for Encryption(some cases) ...
A Method for Obtaining Digital Signatures and Public-key Cryptosystems. R.L Rivest, A. Shamir, L. Adleman. Presented by Wesley Varela ... Eulers totient function ? ...
Symmetric cryptography: same key is used for encryption and decryption. ... The totient function, (n), is the count of numbers k less than n such that k and ...
Requirements for RFID tag hardware. Implementation of WIPR scheme in hardware ... No private key on tag. Only secret ID 'Crack one run one' situation ...
traditional private/secret/single key cryptography uses one key ... based on exponentiation in a finite (Galois) field over integers modulo a prime ...
Eve: eavesdropper. eavesdropper. Alice. Bob. How are you? This is Alice. 2001/12/26 ... Alice and Bob use KA,B for secure communication, where KA,B is known to ...
Generic and Practical Resettable Zero-Knowledge in the Bare Public-Key Model. Moti Yung ... The bare public-key (BPK) model. Concurrent verifier security in ...
CSCE 790. Lecture 6. Public-Key Cryptosystems. Internet Security - Farkas. 2 ... no useful technique to find arbitrary large primes (methods to test primality) ...
Lemma: From Dec-queries A can t deduce more group elements. Proof of lemma ... Lemma. Difference between Games 4 and 5 is GHDH: Game 4: g, c*=gr, u, K*=H(ur) ...
In 1977, Rivest, Shamir, and Adleman invented the first trapdoor function, the RSA. ... information is stored on computers and transmitted over computer networks. ...
Proof (by induction on Eulen(a,b)): If Eulen(a,b)=1 then a=ub, and a (1-u)b=b=gcd(a,b) ... By the induction hypothesis, there exist x,y, such that. bx ry=gcd(b, ...
Windows 2000 implements kerberos version 5 with extensions for publickey ... mythological three-headed dog that. guarded the entrance. to Hades. Invented by MIT, ...
An example using the SUN provider The provider SUN is supplied in Java 2SDK. SUN provides both an implementation of the NIST Digital Signature Algorithm (DSA), and
The ECB (Electronic Code Book) mode encrypts the plaintext a block at a time. ... For each of the correspondents in the key exchange, doPhase needs to be called. ...
How does this impact web apps. No changes should be necessary, just include the https URL ... login page is https, then a man-in-the-middle cant read and spoof ...
Local Access Control restricts access to data. ... protected by access restrictions. Labels are sets of key names. Access restricted to intersection of policies ...
SNMP Simple Network Management Protocol SNMP * SNMP * Otras redes, otros segmentos Comentario a la monitorizaci n SNMP gestiona dispositivos individuales, pero no ...
NERSC is supported by the Office of Advanced Scientific Computing ... No application reassembly vi and emacs provide a somewhat murky picture. Design Overview ...
Based on the (assumed) difficulty of factoring large integers ... Provably secure under the random oracle model. M1 = Mask((H(P)|PS|0x01|M),S) M2 = Mask(S, M1) ...
Trial process of AUTH48 in XML, so authors can insert edits directly ... Copy-Editing ... Early Copy-Editing Experiment. 26. 160 (166) 30 (38) 41. 79 (79) 18 ...
Joint work with Dominic Duggan (Stevens) and Jan Vitek ... Then e2 can also be declassified! Key Type Rules. New names are created by the right principal. ...
password guessing. password cracking. exploiting known ... have noticed that some shareware programs implements this kind of verification technique. ...
... CipherSuite cipher_suites; CompressionMethod compression_methods ... for encryption , signatures, hashes ... RFC to Murj Model TLS Basics TLS consists of two ...