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public key size is 56 bytes, but not 57 bytes #8

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SashaZezulinsky opened this issue Jan 27, 2021 · 1 comment

SashaZezulinsky commented Jan 27, 2021

otrv4/ed448 public key size is 56 bytes, private key size is 144 bytes, signature is 112 bytes

According the rfc8032 standard: https://tools.ietf.org/html/rfc8032

EdDSA uses small public keys (32 or 57 bytes) and signatures (64 or 114 bytes) for Ed25519 and Ed448, respectively;

Why are pub/priv/sig sizes for otrv4/ed448 are so different from a rfc8032 standard?
What standard does otrv4/ed448 implementation follow?

Member

claucece commented Jan 27, 2021

Hi, @SashaZezulinsky .

The code that implements eddsa as per the RFC is here: https://github.com/otrv4/ed448/blob/master/eddsa.go and it is 57 and 114 bytes.

What are you referring to?

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