ossl_siv128_init
ret = ossl_siv128_init(ctx, key, klen, cbc, ctr, libctx, propq);
int ossl_siv128_init(SIV128_CONTEXT *ctx, const unsigned char *key, int klen,
return ossl_siv128_init(sctx, key, klen, ctx->cbc, ctx->ctr, libctx,