vtls: remove md5sum

As it is not used anymore.

Reported-by: Jacob Hoffman-Andrews
Bug: https://curl.se/mail/lib-2021-02/0000.html

Closes #6557

12 files changed, 0 insertions, 148 deletions

diff --git a/lib/vtls/bearssl.c b/lib/vtls/bearssl.c
index 8dd262ed0..29b08c0e6 100644
--- a/lib/vtls/bearssl.c
+++ b/lib/vtls/bearssl.c
@@ -827,19 +827,6 @@ static void bearssl_session_free(void *ptr)
   free(ptr);
 }
 
-static CURLcode bearssl_md5sum(unsigned char *input,
-                               size_t inputlen,
-                               unsigned char *md5sum,
-                               size_t md5len UNUSED_PARAM)
-{
-  br_md5_context ctx;
-
-  br_md5_init(&ctx);
-  br_md5_update(&ctx, input, inputlen);
-  br_md5_out(&ctx, md5sum);
-  return CURLE_OK;
-}
-
 static CURLcode bearssl_sha256sum(const unsigned char *input,
                                   size_t inputlen,
                                   unsigned char *sha256sum,
@@ -876,7 +863,6 @@ const struct Curl_ssl Curl_ssl_bearssl = {
   Curl_none_set_engine_default,
   Curl_none_engines_list,
   Curl_none_false_start,
-  bearssl_md5sum,
   bearssl_sha256sum
 };
 
diff --git a/lib/vtls/gskit.c b/lib/vtls/gskit.c
index 0095a2071..9b5f649f7 100644
--- a/lib/vtls/gskit.c
+++ b/lib/vtls/gskit.c
@@ -1282,7 +1282,6 @@ const struct Curl_ssl Curl_ssl_gskit = {
   Curl_none_set_engine_default,   /* set_engine_default */
   Curl_none_engines_list,         /* engines_list */
   Curl_none_false_start,          /* false_start */
-  Curl_none_md5sum,               /* md5sum */
   NULL                            /* sha256sum */
 };
 
diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c
index 27c8a0536..3ddee1974 100644
--- a/lib/vtls/gtls.c
+++ b/lib/vtls/gtls.c
@@ -1618,26 +1618,6 @@ static CURLcode gtls_random(struct Curl_easy *data,
   return CURLE_OK;
 }
 
-static CURLcode gtls_md5sum(unsigned char *tmp, /* input */
-                            size_t tmplen,
-                            unsigned char *md5sum, /* output */
-                            size_t md5len)
-{
-#if defined(USE_GNUTLS_NETTLE)
-  struct md5_ctx MD5pw;
-  md5_init(&MD5pw);
-  md5_update(&MD5pw, (unsigned int)tmplen, tmp);
-  md5_digest(&MD5pw, (unsigned int)md5len, md5sum);
-#elif defined(USE_GNUTLS)
-  gcry_md_hd_t MD5pw;
-  gcry_md_open(&MD5pw, GCRY_MD_MD5, 0);
-  gcry_md_write(MD5pw, tmp, tmplen);
-  memcpy(md5sum, gcry_md_read(MD5pw, 0), md5len);
-  gcry_md_close(MD5pw);
-#endif
-  return CURLE_OK;
-}
-
 static CURLcode gtls_sha256sum(const unsigned char *tmp, /* input */
                                size_t tmplen,
                                unsigned char *sha256sum, /* output */
@@ -1699,7 +1679,6 @@ const struct Curl_ssl Curl_ssl_gnutls = {
   Curl_none_set_engine_default,  /* set_engine_default */
   Curl_none_engines_list,        /* engines_list */
   Curl_none_false_start,         /* false_start */
-  gtls_md5sum,                   /* md5sum */
   gtls_sha256sum                 /* sha256sum */
 };
 
diff --git a/lib/vtls/mbedtls.c b/lib/vtls/mbedtls.c
index 4ebd8af7d..fc3a948d1 100644
--- a/lib/vtls/mbedtls.c
+++ b/lib/vtls/mbedtls.c
@@ -1108,7 +1108,6 @@ const struct Curl_ssl Curl_ssl_mbedtls = {
   Curl_none_set_engine_default,     /* set_engine_default */
   Curl_none_engines_list,           /* engines_list */
   Curl_none_false_start,            /* false_start */
-  Curl_none_md5sum,                 /* md5sum */
   mbedtls_sha256sum                 /* sha256sum */
 };
 
diff --git a/lib/vtls/mesalink.c b/lib/vtls/mesalink.c
index af1d55e10..b6d1005ec 100644
--- a/lib/vtls/mesalink.c
+++ b/lib/vtls/mesalink.c
@@ -662,7 +662,6 @@ const struct Curl_ssl Curl_ssl_mesalink = {
   Curl_none_set_engine_default,  /* set_engine_default */
   Curl_none_engines_list,        /* engines_list */
   Curl_none_false_start,         /* false_start */
-  Curl_none_md5sum,              /* md5sum */
   NULL                           /* sha256sum */
 };
 
diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c
index d1357a97f..e5ab71cdf 100644
--- a/lib/vtls/nss.c
+++ b/lib/vtls/nss.c
@@ -2370,24 +2370,6 @@ static CURLcode nss_random(struct Curl_easy *data,
   return CURLE_OK;
 }
 
-static CURLcode nss_md5sum(unsigned char *tmp, /* input */
-                           size_t tmplen,
-                           unsigned char *md5sum, /* output */
-                           size_t md5len)
-{
-  PK11Context *MD5pw = PK11_CreateDigestContext(SEC_OID_MD5);
-  unsigned int MD5out;
-
-  if(!MD5pw)
-    return CURLE_NOT_BUILT_IN;
-
-  PK11_DigestOp(MD5pw, tmp, curlx_uztoui(tmplen));
-  PK11_DigestFinal(MD5pw, md5sum, &MD5out, curlx_uztoui(md5len));
-  PK11_DestroyContext(MD5pw, PR_TRUE);
-
-  return CURLE_OK;
-}
-
 static CURLcode nss_sha256sum(const unsigned char *tmp, /* input */
                               size_t tmplen,
                               unsigned char *sha256sum, /* output */
@@ -2462,7 +2444,6 @@ const struct Curl_ssl Curl_ssl_nss = {
   Curl_none_set_engine_default, /* set_engine_default */
   Curl_none_engines_list,       /* engines_list */
   nss_false_start,              /* false_start */
-  nss_md5sum,                   /* md5sum */
   nss_sha256sum                 /* sha256sum */
 };
 
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index de4c33d96..784d9f70e 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -4413,25 +4413,6 @@ static CURLcode ossl_random(struct Curl_easy *data,
   return (rc == 1 ? CURLE_OK : CURLE_FAILED_INIT);
 }
 
-static CURLcode ossl_md5sum(unsigned char *tmp, /* input */
-                            size_t tmplen,
-                            unsigned char *md5sum /* output */,
-                            size_t unused)
-{
-  EVP_MD_CTX *mdctx;
-  unsigned int len = 0;
-  (void) unused;
-
-  mdctx = EVP_MD_CTX_create();
-  if(!mdctx)
-    return CURLE_OUT_OF_MEMORY;
-  EVP_DigestInit(mdctx, EVP_md5());
-  EVP_DigestUpdate(mdctx, tmp, tmplen);
-  EVP_DigestFinal_ex(mdctx, md5sum, &len);
-  EVP_MD_CTX_destroy(mdctx);
-  return CURLE_OK;
-}
-
 #if (OPENSSL_VERSION_NUMBER >= 0x0090800fL) && !defined(OPENSSL_NO_SHA256)
 static CURLcode ossl_sha256sum(const unsigned char *tmp, /* input */
                                size_t tmplen,
@@ -4504,7 +4485,6 @@ const struct Curl_ssl Curl_ssl_openssl = {
   ossl_set_engine_default,  /* set_engine_default */
   ossl_engines_list,        /* engines_list */
   Curl_none_false_start,    /* false_start */
-  ossl_md5sum,              /* md5sum */
 #if (OPENSSL_VERSION_NUMBER >= 0x0090800fL) && !defined(OPENSSL_NO_SHA256)
   ossl_sha256sum            /* sha256sum */
 #else
diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index 5a35eb21e..0668f98f2 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -2383,15 +2383,6 @@ static void schannel_checksum(const unsigned char *input,
     CryptReleaseContext(hProv, 0);
 }
 
-static CURLcode schannel_md5sum(unsigned char *input,
-                                size_t inputlen,
-                                unsigned char *md5sum,
-                                size_t md5len)
-{
-  schannel_checksum(input, inputlen, md5sum, md5len, PROV_RSA_FULL, CALG_MD5);
-  return CURLE_OK;
-}
-
 static CURLcode schannel_sha256sum(const unsigned char *input,
                                    size_t inputlen,
                                    unsigned char *sha256sum,
@@ -2435,7 +2426,6 @@ const struct Curl_ssl Curl_ssl_schannel = {
   Curl_none_set_engine_default,      /* set_engine_default */
   Curl_none_engines_list,            /* engines_list */
   Curl_none_false_start,             /* false_start */
-  schannel_md5sum,                   /* md5sum */
   schannel_sha256sum                 /* sha256sum */
 };
 
diff --git a/lib/vtls/sectransp.c b/lib/vtls/sectransp.c
index dfe3d28f4..9a8f7de8d 100644
--- a/lib/vtls/sectransp.c
+++ b/lib/vtls/sectransp.c
@@ -3132,16 +3132,6 @@ static CURLcode sectransp_random(struct Curl_easy *data UNUSED_PARAM,
   return CURLE_OK;
 }
 
-static CURLcode sectransp_md5sum(unsigned char *tmp, /* input */
-                                 size_t tmplen,
-                                 unsigned char *md5sum, /* output */
-                                 size_t md5len)
-{
-  (void)md5len;
-  (void)CC_MD5(tmp, (CC_LONG)tmplen, md5sum);
-  return CURLE_OK;
-}
-
 static CURLcode sectransp_sha256sum(const unsigned char *tmp, /* input */
                                     size_t tmplen,
                                     unsigned char *sha256sum, /* output */
@@ -3319,7 +3309,6 @@ const struct Curl_ssl Curl_ssl_sectransp = {
   Curl_none_set_engine_default,       /* set_engine_default */
   Curl_none_engines_list,             /* engines_list */
   sectransp_false_start,              /* false_start */
-  sectransp_md5sum,                   /* md5sum */
   sectransp_sha256sum                 /* sha256sum */
 };
 
diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
index e32773b0c..b8ab7494f 100644
--- a/lib/vtls/vtls.c
+++ b/lib/vtls/vtls.c
@@ -1036,16 +1036,6 @@ CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
   return result;
 }
 
-#ifndef CURL_DISABLE_CRYPTO_AUTH
-CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */
-                         size_t tmplen,
-                         unsigned char *md5sum, /* output */
-                         size_t md5len)
-{
-  return Curl_ssl->md5sum(tmp, tmplen, md5sum, md5len);
-}
-#endif
-
 /*
  * Check whether the SSL backend supports the status_request extension.
  */
@@ -1156,35 +1146,6 @@ bool Curl_none_false_start(void)
   return FALSE;
 }
 
-#ifndef CURL_DISABLE_CRYPTO_AUTH
-CURLcode Curl_none_md5sum(unsigned char *input, size_t inputlen,
-                          unsigned char *md5sum, size_t md5len UNUSED_PARAM)
-{
-  struct MD5_context *MD5pw;
-
-  (void)md5len;
-
-  MD5pw = Curl_MD5_init(Curl_DIGEST_MD5);
-  if(!MD5pw)
-    return CURLE_OUT_OF_MEMORY;
-  Curl_MD5_update(MD5pw, input, curlx_uztoui(inputlen));
-  Curl_MD5_final(MD5pw, md5sum);
-  return CURLE_OK;
-}
-#else
-CURLcode Curl_none_md5sum(unsigned char *input UNUSED_PARAM,
-                          size_t inputlen UNUSED_PARAM,
-                          unsigned char *md5sum UNUSED_PARAM,
-                          size_t md5len UNUSED_PARAM)
-{
-  (void)input;
-  (void)inputlen;
-  (void)md5sum;
-  (void)md5len;
-  return CURLE_NOT_BUILT_IN;
-}
-#endif
-
 static int multissl_init(void)
 {
   if(multissl_setup(NULL))
@@ -1248,7 +1209,6 @@ static const struct Curl_ssl Curl_ssl_multi = {
   Curl_none_set_engine_default,      /* set_engine_default */
   Curl_none_engines_list,            /* engines_list */
   Curl_none_false_start,             /* false_start */
-  Curl_none_md5sum,                  /* md5sum */
   NULL                               /* sha256sum */
 };
 
diff --git a/lib/vtls/vtls.h b/lib/vtls/vtls.h
index 8c4bcce35..9666682ec 100644
--- a/lib/vtls/vtls.h
+++ b/lib/vtls/vtls.h
@@ -73,9 +73,6 @@ struct Curl_ssl {
   struct curl_slist *(*engines_list)(struct Curl_easy *data);
 
   bool (*false_start)(void);
-
-  CURLcode (*md5sum)(unsigned char *input, size_t inputlen,
-                     unsigned char *md5sum, size_t md5sumlen);
   CURLcode (*sha256sum)(const unsigned char *input, size_t inputlen,
                     unsigned char *sha256sum, size_t sha256sumlen);
 };
@@ -100,8 +97,6 @@ CURLcode Curl_none_set_engine_default(struct Curl_easy *data);
 struct curl_slist *Curl_none_engines_list(struct Curl_easy *data);
 bool Curl_none_false_start(void);
 bool Curl_ssl_tls13_ciphersuites(void);
-CURLcode Curl_none_md5sum(unsigned char *input, size_t inputlen,
-                          unsigned char *md5sum, size_t md5len);
 
 #include "openssl.h"        /* OpenSSL versions */
 #include "gtls.h"           /* GnuTLS versions */
@@ -258,10 +253,6 @@ void Curl_ssl_delsessionid(struct Curl_easy *data, void *ssl_sessionid);
 /* get N random bytes into the buffer */
 CURLcode Curl_ssl_random(struct Curl_easy *data, unsigned char *buffer,
                          size_t length);
-CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */
-                         size_t tmplen,
-                         unsigned char *md5sum, /* output */
-                         size_t md5len);
 /* Check pinned public key. */
 CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
                               const char *pinnedpubkey,
diff --git a/lib/vtls/wolfssl.c b/lib/vtls/wolfssl.c
index 4d2b05af5..e1fa45926 100644
--- a/lib/vtls/wolfssl.c
+++ b/lib/vtls/wolfssl.c
@@ -1160,7 +1160,6 @@ const struct Curl_ssl Curl_ssl_wolfssl = {
   Curl_none_set_engine_default,    /* set_engine_default */
   Curl_none_engines_list,          /* engines_list */
   Curl_none_false_start,           /* false_start */
-  Curl_none_md5sum,                /* md5sum */
   wolfssl_sha256sum                /* sha256sum */
 };