kdf_argon2_init
kdf_argon2_init(ctx, type);
static void kdf_argon2_init(KDF_ARGON2 *ctx, ARGON2_TYPE t);
kdf_argon2_init(ctx, ARGON2_D);
kdf_argon2_init(ctx, ARGON2_I);
kdf_argon2_init(ctx, ARGON2_ID);