MBEDTLS_ECDSA_MAX_SIG_LEN macro

Maximum ECDSA signature size for a given curve bit size

Syntax

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Summary

Declaration

#define MBEDTLS_ECDSA_MAX_SIG_LEN(bits) \ ( ((bits) >= 61 * 8 ? 3 : 2) + \ 2 * (((bits) >= 127 * 8 ? 3 : 2) + \ ((bits) + 8) / 8))

Argument

Description

bits

Curve size in bits

Maximum signature size in bytes

This macro returns a compile-time constant if its argument is one. It may evaluate its argument multiple times.

from examples