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      1 /* $OpenBSD: hash.c,v 1.6 2019/11/29 00:11:21 djm Exp $ */
      2 /*
      3  * Public domain. Author: Christian Weisgerber <naddy (at) openbsd.org>
      4  * API compatible reimplementation of function from nacl
      5  */
      6 #include "includes.h"
      7 __RCSID("$NetBSD: hash.c,v 1.9 2025/12/28 09:54:06 nia Exp $");
      8 
      9 #include "crypto_api.h"
     10 
     11 #include <stdarg.h>
     12 
     13 #ifdef WITH_OPENSSL
     14 #include <openssl/evp.h>
     15 
     16 int
     17 crypto_hash_sha512(unsigned char *out, const unsigned char *in,
     18     unsigned long long inlen)
     19 {
     20 
     21 	if (!EVP_Digest(in, inlen, out, NULL, EVP_sha512(), NULL))
     22 		return -1;
     23 	return 0;
     24 }
     25 
     26 #else
     27 #include <sha2.h>
     28 
     29 int
     30 crypto_hash_sha512(unsigned char *out, const unsigned char *in,
     31     unsigned long long inlen)
     32 {
     33 
     34 	SHA512_CTX ctx;
     35 
     36 	SHA512Init(&ctx);
     37 	SHA512Update(&ctx, in, inlen);
     38 	SHA512Final(out, &ctx);
     39 	return 0;
     40 }
     41 #endif /* WITH_OPENSSL */
     42