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湖南第一师范学院综合英语（四）课件Unit8 Hummingbird Winer。
The Bahama Woodstar is a hummingbird found in the Bahamas, and comprises two subspecies. One of these, Calliphlox evelynae evelynae, is found throughout the islands of the Bahamas, and especially...
The sight of a tiny hummingbird hovering in front of a flower and then darting to another with lightning speed amazes and delights. But it also leaves watchers with a persistent question: How do they ...
Tiny, swift, and iridescent, hummingbirds dart around flowers and feeders, sipping nectar with their seemingly delicate beaks.
But new research shows that these beaks actually double as deft, dagger-...
Hummingbird evolution soared after they invaded South America 22 million years ago
Hummingbird evolution soared after they invaded South America 22 million years ago
2014/4/16
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2014, its budg...
Related-key Attacks Against Full Hummingbird-2
Hummingbird-2 Related-Key Cryptanalysis Lightweight Cryptography Authenticated Encryption
2013/4/18
We present attacks on full Hummingbird-2 which are able to recover the 128-bit secret keys of two black box cipher instances that have a certain type of low-weight XOR difference in their keys. We cal...
Hummingbird: Privacy at the time of Twitter
privacy micro-blogging OSN multi-party computation
2012/6/14
In the last several years, micro-blogging Online Social Networks (OSNs), such as Twitter, have taken the world by storm, now boasting over 100 million subscribers. As an unparalleled stage for an enor...
Hummingbird: Privacy at the time of Twitter
privacy micro-blogging OSN multi-party computation
2012/3/21
In the last several years, micro-blogging Online Social Networks (OSNs), such as Twitter, have taken the world by storm, now boasting over 100 million subscribers. As an unparalleled stage for an enor...
Hummingbird: Privacy at the time of Twitter
privacy micro-blogging OSN multi-party computation
2012/3/22
In the last several years, micro-blogging Online Social Networks (OSNs), such as Twitter, have taken the world by storm, now boasting over 100 million subscribers. As an unparalleled stage for an enor...
Multidimensional Meet-in-the-Middle Attack and Its Applications to GOST, KTANTAN and Hummingbird-2
Multidimensional Meet-in-the-Middle cryptanalysis GOST KTANTAN Hummingbird
2012/6/14
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
Multidimensional Meet-in-the-Middle Attack and Its Applications to GOST, KTANTAN and Hummingbird-2
Multidimensional Meet-in-the-Middle cryptanalysis GOST, KTANTAN Hummingbird
2012/3/22
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
Multidimensional Meet-in-the-Middle Attack and Its Applications to GOST, KTANTAN and Hummingbird-2
Multidimensional Meet-in-the-Middle cryptanalysis GOST KTANTAN Hummingbird
2012/3/21
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
The Hummingbird-2 Lightweight Authenticated Encryption Algorithm
Hummingbird cipher constrained devices lightweight cryptography ISO 18000-6C
2012/3/29
Hummingbird-2 is an encryption algorithm with a 128-bit secret key and a 64-bit initialization vector. Hummingbird-2 optionally produces an authentication tag for each message processed. Like it's pre...
Cryptanalysis of Hummingbird
Hummingbird cipher constrained devices lightweight cryptography stream cipher cryptanalysis
2010/12/1
Hummingbird-1 is a lightweight encryption and message authentication primitive published in RISC ’09 and WLC ’10. Hummingbird-1 utilizes a 256-bit secret key and a 64-bit IV. We report a chosen-IV, ch...
Enhanced FPGA Implementation of the Hummingbird Cryptographic Algorithm
Lightweight Cryptography FPGA Implementation Coprocessor Approach
2010/11/22
Hummingbird is a novel ultra-lightweight cryptographic algorithm aiming at resource-constrained devices. In this work, an enhanced hardware implementation of the Hummingbird cryptographic algorithm fo...