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ChaCha20-Poly1305 is an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code. [1] It has fast software performance, and without hardware acceleration, is usually faster than AES-GCM. [1]: §B
GCM was designed by John Viega and David A. McGrew to be an improvement to Carter–Wegman counter mode (CWC mode). [4] In November 2007, NIST announced the release of NIST Special Publication 800-38D Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC making GCM and GMAC official standards. [5]
Authenticated Encryption (AE) is an encryption scheme which simultaneously assures the data confidentiality (also known as privacy: the encrypted message is impossible to understand without the knowledge of a secret key [1]) and authenticity (in other words, it is unforgeable: [2] the encrypted message includes an authentication tag that the sender can calculate only while possessing the ...
AES-GCM-SIV is an improvement over the very similarly named algorithm GCM-SIV, with a few very small changes (e.g. how AES-CTR is initialized), but which yields practical benefits to its security "This addition allows for encrypting up to 2 50 messages with the same key, compared to the significant limitation of only 2 32 messages that were ...
AES speed at 128, 192 and 256-bit key sizes. [clarification needed] [citation needed] Rijndael is free for any use public or private, commercial or non-commercial. [1] The authors of Rijndael used to provide a homepage [2] for the algorithm. Care should be taken when implementing AES in software, in particular around side-channel attacks.
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Cats are usually considered "full-grown" once they reach 18 months old, equating to 21 years of age in humans, PetMD reports. Other breeds, however, do not reach full size until they are 2 years ...
except AES_GCM No [95] Schannel 7/2008R2, 8.1/2012R2: Yes Disabled by default Yes 2048 bits by default [96] No Yes No except AES_GCM No [95] Schannel 10: Yes Disabled by default Yes 2048 bits by default [96] No Yes No Yes No [95] Secure Transport OS X 10.6 Yes Yes except AES_GCM Yes Yes except AES_GCM yes except AES_GCM No Secure Transport OS X ...