[gnurl] 39/264: windows: suppress UI in all CryptAcquireContext() calls

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nikita pushed a commit to branch master
in repository gnurl.

commit 7284061361e32d6f4d6308bf41d751601d101ba2
Author: Viktor Szakats <address@hidden>
AuthorDate: Tue Mar 17 23:06:05 2020 +0000

    windows: suppress UI in all CryptAcquireContext() calls
    
    Ref: 
https://docs.microsoft.com/windows/win32/api/wincrypt/nf-wincrypt-cryptacquirecontexta#parameters
    Reviewed-by: Marc Hörsken
    Closes https://github.com/curl/curl/pull/5088
---
 lib/curl_ntlm_core.c |  2 +-
 lib/md4.c            |  2 +-
 lib/md5.c            |  4 ++--
 lib/sha256.c         |  4 ++--
 lib/vtls/schannel.c  |  2 +-
 src/tool_metalink.c  | 12 ++++++------
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/lib/curl_ntlm_core.c b/lib/curl_ntlm_core.c
index f9b823b4f..32e29a933 100644
--- a/lib/curl_ntlm_core.c
+++ b/lib/curl_ntlm_core.c
@@ -342,7 +342,7 @@ static bool encrypt_des(const unsigned char *in, unsigned 
char *out,
 
   /* Acquire the crypto provider */
   if(!CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_FULL,
-                          CRYPT_VERIFYCONTEXT))
+                          CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
     return FALSE;
 
   /* Setup the key blob structure */
diff --git a/lib/md4.c b/lib/md4.c
index 38f1b2bc9..4dab6af7a 100644
--- a/lib/md4.c
+++ b/lib/md4.c
@@ -146,7 +146,7 @@ static void MD4_Init(MD4_CTX *ctx)
   ctx->hHash = 0;
 
   if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
-                         CRYPT_VERIFYCONTEXT)) {
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_MD4, 0, 0, &ctx->hHash);
   }
 }
diff --git a/lib/md5.c b/lib/md5.c
index 3f601b3a4..766158786 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -186,8 +186,8 @@ typedef struct {
 
 static void MD5_Init(MD5_CTX *ctx)
 {
-  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
-                         PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_MD5, 0, 0, &ctx->hHash);
   }
 }
diff --git a/lib/sha256.c b/lib/sha256.c
index 352d577e8..00d98ce46 100644
--- a/lib/sha256.c
+++ b/lib/sha256.c
@@ -207,8 +207,8 @@ typedef struct {
 
 static void SHA256_Init(SHA256_CTX *ctx)
 {
-  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
-                         PROV_RSA_AES, CRYPT_VERIFYCONTEXT)) {
+  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_AES,
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_SHA_256, 0, 0, &ctx->hHash);
   }
 }
diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index f665ee340..3b9aef47c 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -2203,7 +2203,7 @@ static void Curl_schannel_checksum(const unsigned char 
*input,
   memset(checksum, 0, checksumlen);
 
   if(!CryptAcquireContext(&hProv, NULL, NULL, provType,
-                          CRYPT_VERIFYCONTEXT))
+                          CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
     return; /* failed */
 
   do {
diff --git a/src/tool_metalink.c b/src/tool_metalink.c
index f87f686f1..e8629353f 100644
--- a/src/tool_metalink.c
+++ b/src/tool_metalink.c
@@ -336,8 +336,8 @@ static void win32_crypto_final(struct win32_crypto_hash 
*ctx,
 
 static int MD5_Init(MD5_CTX *ctx)
 {
-  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
-                         PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_MD5, 0, 0, &ctx->hHash);
   }
   return 1;
@@ -357,8 +357,8 @@ static void MD5_Final(unsigned char digest[16], MD5_CTX 
*ctx)
 
 static int SHA1_Init(SHA_CTX *ctx)
 {
-  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
-                         PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_SHA1, 0, 0, &ctx->hHash);
   }
   return 1;
@@ -378,8 +378,8 @@ static void SHA1_Final(unsigned char digest[20], SHA_CTX 
*ctx)
 
 static int SHA256_Init(SHA256_CTX *ctx)
 {
-  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
-                         PROV_RSA_AES, CRYPT_VERIFYCONTEXT)) {
+  if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_AES,
+                         CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
     CryptCreateHash(ctx->hCryptProv, CALG_SHA_256, 0, 0, &ctx->hHash);
   }
   return 1;

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