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A comment on Cryptographic Right Answers. Parent comment

Re:Cryptographic Right Answers by posterboy on Tuesday April 03, 2018 @10:55PM (#16751513)
avr has aes extensions, surely arm cortex-m has similar. are those any good, are they used by the libs you mention?
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Re:Cryptographic Right Answers by tptacek on Wednesday April 04, 2018 @07:41PM (#16760396)
Neither of those libraries uses any extensions. TweetNaCl is a famously minimal implementation of NaCl in portable C by the NaCl authors. Monocypher is a library 'loup-vaillant wrote as a sort of side project. TweetNaCl does see some use, but libsodium is the most popular NaCl implementation, and libsodium's author provides his own low-footprint misuse-resistant crypto API separately.

Neither TweetNaCl nor 'loup-vaillant's library really addresses the low-footprint concern.

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Re:Cryptographic Right Answers by loup-vaillant on Wednesday April 04, 2018 @01:57AM (#16752341)
If they have hardware AES support, forget everything I said. Monocypher and TweetNacl are portable C, they don't use extensions of any kind.
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