From 474fd9284b76d8ddd3a3aec41cbca3cc48271cc1 Mon Sep 17 00:00:00 2001
From: Nikias Bassen
Date: Tue, 4 Jul 2023 17:14:27 +0200
Subject: 3rd_party/libsrp6a-sha512: Updated to work with OpenSSL 3.0+ API

---
 3rd_party/libsrp6a-sha512/Makefile.am |  9 ++++----
 3rd_party/libsrp6a-sha512/t_math.c    |  8 ++++++-
 3rd_party/libsrp6a-sha512/t_sha.c     | 40 ++++++++++++++++++++++++++++++++++-
 3rd_party/libsrp6a-sha512/t_sha.h     | 24 ++++++++++++++++++++-
 4 files changed, 74 insertions(+), 7 deletions(-)

diff --git a/3rd_party/libsrp6a-sha512/Makefile.am b/3rd_party/libsrp6a-sha512/Makefile.am
index c349d8c..2acd582 100644
--- a/3rd_party/libsrp6a-sha512/Makefile.am
+++ b/3rd_party/libsrp6a-sha512/Makefile.am
@@ -24,7 +24,8 @@ libsrp6a_sha512_la_SOURCES = \
   t_conv.c t_math.c t_misc.c \
   t_truerand.c cstr.c \
   srp.c srp6a_sha512_client.c \
-  srp.h srp_aux.h cstr.h
-if !HAVE_OPENSSL
-libsrp6a_sha512_la_SOURCES += t_sha.c
-endif
+  srp.h srp_aux.h cstr.h \
+  t_sha.c
+#if !HAVE_OPENSSL
+#libsrp6a_sha512_la_SOURCES += t_sha.c
+#endif
diff --git a/3rd_party/libsrp6a-sha512/t_math.c b/3rd_party/libsrp6a-sha512/t_math.c
index 166ee4c..037650e 100644
--- a/3rd_party/libsrp6a-sha512/t_math.c
+++ b/3rd_party/libsrp6a-sha512/t_math.c
@@ -39,11 +39,13 @@ typedef BIGNUM * BigInteger;
 typedef BN_CTX * BigIntegerCtx;
 typedef BN_MONT_CTX * BigIntegerModAccel;
 #include <limits.h>
+#if OPENSSL_VERSION_NUMBER < 0x30000000L
 # ifndef OPENSSL_NO_ENGINE
 #  define OPENSSL_ENGINE
 #  include "openssl/engine.h"
 static ENGINE * default_engine = NULL;
 # endif /* OPENSSL_ENGINE */
+#endif
 typedef int (*modexp_meth)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 			   const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *mctx);
 static modexp_meth default_modexp = NULL;
@@ -758,7 +760,11 @@ BigIntegerCheckPrime(BigInteger n, BigIntegerCtx c)
   if(c == NULL)
     c = ctx = BN_CTX_new();
 #if OPENSSL_VERSION_NUMBER >= 0x00908000
-  rv = BN_is_prime_ex(n, 25, c, NULL);
+  #if OPENSSL_VERSION_NUMBER >= 0x30000000L
+    rv = BN_check_prime(n, c, NULL);
+  #else
+    rv = BN_is_prime_ex(n, 25, c, NULL);
+  #endif
 #else
   rv = BN_is_prime(n, 25, NULL, c, NULL);
 #endif
diff --git a/3rd_party/libsrp6a-sha512/t_sha.c b/3rd_party/libsrp6a-sha512/t_sha.c
index 4029de8..8e54cb6 100644
--- a/3rd_party/libsrp6a-sha512/t_sha.c
+++ b/3rd_party/libsrp6a-sha512/t_sha.c
@@ -107,6 +107,44 @@ SHA512Final_mbed(unsigned char digest[64], SHA512_CTX * ctx)
   mbedtls_md_free(ctx);
 }
 
+#elif defined(OPENSSL_SHA)
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+void
+SHA1Init_openssl(SHA1_CTX *ctx)
+{
+  *ctx = EVP_MD_CTX_new();
+  EVP_DigestInit(*ctx, EVP_sha1());
+}
+
+void SHA1Update_openssl(SHA1_CTX *ctx, const void *data, unsigned int len)
+{
+  EVP_DigestUpdate(*ctx, data, (size_t)len);
+}
+
+void SHA1Final_openssl(unsigned char digest[20], SHA1_CTX *ctx)
+{
+  EVP_DigestFinal(*ctx, digest, NULL);
+  EVP_MD_CTX_destroy(*ctx);
+}
+
+void
+SHA512Init_openssl(SHA512_CTX *ctx)
+{
+  *ctx = EVP_MD_CTX_new();
+  EVP_DigestInit(*ctx, EVP_sha512());
+}
+
+void SHA512Update_openssl(SHA512_CTX *ctx, const void *data, unsigned int len)
+{
+  EVP_DigestUpdate(*ctx, data, (size_t)len);
+}
+
+void SHA512Final_openssl(unsigned char digest[64], SHA512_CTX *ctx)
+{
+  EVP_DigestFinal(*ctx, digest, NULL);
+  EVP_MD_CTX_destroy(*ctx);
+}
+#endif
 #elif !defined(OPENSSL_SHA) && !defined(TOMCRYPT_SHA)
 /* Use the free SHA1 if the library doesn't have it */
 
@@ -273,4 +311,4 @@ unsigned char finalcount[8];
     SHA1Transform(context->state, context->buffer);
 #endif
 }
-#endif /* OPENSSL */
+#endif
diff --git a/3rd_party/libsrp6a-sha512/t_sha.h b/3rd_party/libsrp6a-sha512/t_sha.h
index 18deec5..2e38067 100644
--- a/3rd_party/libsrp6a-sha512/t_sha.h
+++ b/3rd_party/libsrp6a-sha512/t_sha.h
@@ -38,6 +38,28 @@
 #endif
 
 #ifdef OPENSSL_SHA
+#include <openssl/err.h>
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+#include <openssl/evp.h>
+
+typedef EVP_MD_CTX* SHA1_CTX;
+#define SHA1Init SHA1Init_openssl
+#define SHA1Update SHA1Update_openssl
+#define SHA1Final SHA1Final_openssl
+
+typedef EVP_MD_CTX* SHA512_CTX;
+#define SHA512Init SHA512Init_openssl
+#define SHA512Update SHA512Update_openssl
+#define SHA512Final SHA512Final_openssl
+
+void SHA1Init_openssl(SHA1_CTX *ctx);
+void SHA1Update_openssl(SHA1_CTX *ctx, const void *data, unsigned int len);
+void SHA1Final_openssl(unsigned char digest[20], SHA1_CTX *ctx);
+
+void SHA512Init_openssl(SHA512_CTX *ctx);
+void SHA512Update_openssl(SHA512_CTX *ctx, const void *data, unsigned int len);
+void SHA512Final_openssl(unsigned char digest[64], SHA1_CTX *ctx);
+#else /* for OpenSSL < 3.0 */
 #include <openssl/sha.h>
 
 typedef SHA_CTX SHA1_CTX;
@@ -48,7 +70,7 @@ typedef SHA_CTX SHA1_CTX;
 #define SHA512Init SHA512_Init
 #define SHA512Update SHA512_Update
 #define SHA512Final SHA512_Final
-
+#endif /* for OpenSSL < 3.0 */
 #elif defined(TOMCRYPT_SHA)
 /* mycrypt.h already included above */
 
-- 
cgit v1.1-32-gdbae