# Questions tagged as ['output-size']

Output size refers to the output size of specific cryptographic functions. It is especially relevant when the output must fit into a resource constrained system or protocol. For signatures it is the signature size, for KEM schemes it is the size of the encapsulated key.
Score: 3
What hash based digital signature algorithms exist that have reasonably small signature sizes?

What hash based digital signature algorithms exist that have reasonably small signature sizes?

• By reasonably small, I mean not much bigger than what you would get with a 256-bit ECDSA (which I believe has a signature of about 64 bytes). If nothing close exists, then what's the smallest signature size I can get?

• I want 128 bit security or better (although its not a hard requirement).

• I will be si ...

Score: 2
Size of group elements in a bilinear context

In a asymetric pairing context, which size (in bits) should have the elements of $$\mathbb{G}_1,\mathbb{G}_2$$ and $$\mathbb{G}_T$$ if we consider the most efficient elliptic curves?