SHA256
SHA256(H, buf, size, zcp);
SHA2Init(SHA256, ctx);
SHA256(H, buf, size, zcp);
SHA2Init(SHA256,
SOFT_MAC_FINAL_2(SHA256, &(hmac_ctx->hc_ctx_u.sha2_ctx),
test_update_32(SHA256, buf, len, len >> 29, len << 3);
SHA2Init(SHA256, &(dctx.sha2_ctx));
SHA2Init(SHA256, &(dctx.sha2_ctx));
SHA2Init(SHA256, &(dctxp->sha2_ctx));
SHA2Init(SHA256, &ctx);