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Comment on Very Basic Intro to Elliptic Curve Cryptographyparent

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The Tower Number Field Sieve is only applicable to pairing-based ECC though, right? It doesn't impact the security of the curves used in most mainstream crypto (Curve25519, NIST P-256 etc).

Indeed, though if the authors are saying

The number field sieve algorithm is still far from being fully understood, in particular for extension fields that are so important for pairing-based cryptography.

I won't say I understand it either. But it indeed seems to only be applicable in towers of extension fields which are only used for pairing-based cryptography.

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