Blockcipher PowerPoint PPT Presentations
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'Fact Collision resistance implies 2nd-preimage resistance of hash ... 3. Collision resistance given a hash function. it is hard to find two colliding inputs ...
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Mac then Encrypt. Encrypt then Mac. Generic Composition: Encrypt then Mac. Generic Composition: Mac then Encrypt. The CMC Mode of Operation ...
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... any location can be accessed and modified in the desired fashion. ... We will also show that in the case where all outputs of f are distinct, there is ...
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... rump session, CRYPTO'04] Collisions in reduced-round SHA-1 [Biham, rump session] ... [Wang et al., rump session] Collisions in SHA-1 (262 work) [Wang et al. ...
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Cyfer biblioteka kriptografskih funkcija Senko Ra i Vrste kriptografskih algoritama Funkcije za izra unavanje sa etka poruke (message digest, hash algorithms ...
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Origins clear a replacement for DES was needed Key size is too small The variants are just patches can use Triple-DES but slow, has small blocks US NIST issued ...
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Pre. ePre. aPre. fixed key. random key. Preimage. Collision. Sec. eSec. aSec. Second. Preimage ... fixed. range point. random. range point. random. domain point ...
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(IF YOU LOOKED AT A KEY -- YOU WILL SEE A SET OF NUMBERS) SINGLE KEY. SAME KEY USED TO CRYPT AND DECRYPT. SYMMETRIC KEY. SECRET KEY / PRIVATE KEY. DUAL KEY ...
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Design SenSec with improvement & cryptanalysis. Flagship project: SmartCondo- SecureSensor ... Cryptanalysis. The IV in TinySec. Each sensor keeps an IV for ...
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... a key file and uses a key from the file, includes the key at compile time. ... In our project, we won't re-design the security API but adopt TinySec with our ...
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Mote sending an encrypted and authenticated packet successfully will toggle Green ... Compile TestTinySec and install it on mote 1 ...
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No CRC -2 bytes. No group ID -1 bytes. MAC 4 bytes. IV 4 bytes ... CRC is ... Replaces CRC. Can be built using a block cipher. MAC key should be different ...
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Security (attacks) analysis on distributed sensor network ... Secure data fusion (secure information ... Measure voltage drop with oscilloscope. Results ...
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Efficient Implementation of Rijndael Encryption in Reconfigurable Hardware: ... Composite field - Affine Transformation. Linear transformation Translation ...
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... resistance is ... a password on the command line, it prompts you for one ... public key (for us, at least), email address, and other information ...
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Improvement and cryptanalysis on TinySec. Resilient security mechanisms. SenSec and TPSN ... Cryptanalysis. The IV in TinySec. Each sensor keeps an IV for every ...
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