40 #define HMAC_setup(ctx, key, len)	sha2_hmac_starts(&ctx, (unsigned char *)key, len, 0)  argument
41 #define HMAC_crunch(ctx, buf, len)	sha2_hmac_update(&ctx, buf, len)  argument
42 #define HMAC_finish(ctx, dig, dlen)	dlen = SHA256_DIGEST_LENGTH; sha2_hmac_finish(&ctx, dig)  argument
43 #define HMAC_close(ctx)  argument
51 #define HMAC_setup(ctx, key, len)	hmac_sha256_set_key(&ctx, len, key)  argument
52 #define HMAC_crunch(ctx, buf, len)	hmac_sha256_update(&ctx, len, buf)  argument
53 #define HMAC_finish(ctx, dig, dlen)	dlen = SHA256_DIGEST_LENGTH; hmac_sha256_digest(&ctx, SHA256_DI…  argument
54 #define HMAC_close(ctx)  argument
60 #define HMAC_setup(ctx, key, len)	HMAC_CTX_init(&ctx); HMAC_Init_ex(&ctx, (unsigned char *)key, len…  argument
61 #define HMAC_crunch(ctx, buf, len)	HMAC_Update(&ctx, (unsigned char *)buf, len)  argument
62 #define HMAC_finish(ctx, dig, dlen)	HMAC_Final(&ctx, (unsigned char *)dig, &dlen);  argument
63 #define HMAC_close(ctx)	HMAC_CTX_cleanup(&ctx)  argument
301   HMAC_CTX ctx;  member