EVP_PKEY_CTX_get_ecdh_cofactor_mode

Get the ECDH cofactor mode from a key context.

Synopsis

Declared in <openssl/ec.h>

int
EVP_PKEY_CTX_get_ecdh_cofactor_mode(EVP_PKEY_CTX* ctx);

Return Value

Cofactor mode (0 = disable, 1 = enable, -1 = use key default), or a negative error code.

Parameters

NameDescription
ctxKey context configured for ECDH.