PSA_ALG_ECDSA macro

ECDSA signature with hashing. This is the ECDSA signature scheme defined by ANSI X9.62, with a random per-message secret number (*k*). The representation of the signature as a byte string consists of the concatenation of the signature values *r* and *s*. Each of *r* and *s* is encoded as an *N*-octet string, where *N* is the length of the base point of the curve in octets. Each value is represented in big-endian order (most significant octet first).